Dissertations / Theses on the topic 'Fluorosis dental'
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James, Regina Mutave. "Dental fluorosis and parental knowledge of risk factors for dental fluorosis." Thesis, University of the Western Cape, 2016. http://hdl.handle.net/11394/5027.
Full textIntroduction: Dental fluorosis is a developmental disturbance of enamel that results from ingestion of high amounts of fluoride during tooth mineralization. Drinking water remains the main source of fluoride. Other sources of fluoride include infant formula, vegetables; canned fish as well as early, improper utilization of fluoridated toothpastes in children. Knowledge of risk factors in the causation of dental fluorosis may improve strategies to prevent dental fluorosis. Objective: To determine the prevalence of dental fluorosis among children aged 12-15 years old in Athi River sub-county, Machakos County, Kenya and assesses the level of knowledge on risk factors for dental fluorosis among their parents. Methodology: This was a descriptive study with an analytic component. A total of 281 children aged 12-15 years attending public primary schools within Athi River sub-county, Machakos County were included. A self-administered questionnaire was send to parents for socio-demographic characteristics and oral health practices. Children whose parents consented were examined and dental fluorosis scored according to the Thylstrup and Fejerskov index. Fourty randomly selected children were requested to bring water samples from their homes. Retail stores located in the area were visited for purchase of six different brands of bottled water. These samples were sent to a certified laboratory for fluoride analysis and reported in milligrams of fluoride per litre. Data analysis: Data was entered into SPSS version 20 and analysed for means, ANOVA of means and chi-square test of significance for categorical variables. All tests for significance were set at 95% confidence level (α≤0.05). Results: A total of 314 self-administered questionnaires were send to parents together with consent forms for their children‟s participation in the study. Two hundred and eighty six responded positively, giving a response rate of 91%. The overall prevalence of dental fluorosis among children aged 12-15 years was 93.4% with only 6.6% (n=19) recording a TFI score of 0. About one quarter 70(24.4%) of children had severe fluorosis with TFI scores of ≥5. The mean TFI score for all children was 3.09 (SD=2.0), with males recording a mean TF score of 3.01 (SD=2.11) and females a mean TF score of 3.16 (SD=1.88). Out of 44 water samples analysed, 29 (65.9%) had a fluoride content of less than 0.6mg/l, 5 (11.4%) had fluoride content of 0.7 - 1.5mg/l while 10 (22.7%) of samples had a fluoride content ≥1.5mg/l. The highest fluoride content recorded was 9.3mg/l, with another sample reflecting 8.9mgF/l. Three of the bottled water samples had a fluoride content of less than 0.6mg/l, while the other half of the bottled water reported 0.7 - 0.8mg/l fluoride. A majority (87.8%) of parents indicated that they had noticed children with brown staining of their permanent teeth in their community. About 80% of parents thought dental fluorosis was caused by salty water, while only 12.9% correctly identified water with high fluoride content as being responsible for the discolored teeth. Conclusion: Although about one in five water sources sampled had fluoride content of ≥1.5mg/l, the prevalence of dental fluorosis in this community was very high. Parental knowledge on the risk factors for dental fluorosis was low. Further research is necessary to identify the water distribution networks to provide sound evidence for engaging with the county authorities on provision of safe drinking water to the community.
Riordan, Paul J. "Dental fluorosis diagnosis, epidemiology, risk factors and prevention /." Perth : Health Dept. of Western Australia, Dental Services, 1994. http://books.google.com/books?id=LO5pAAAAMAAJ.
Full textOweis, Reem. "Associations between fluoride intakes, bone outcomes and dental fluorosis." Diss., University of Iowa, 2018. https://ir.uiowa.edu/etd/6239.
Full textRickers, B. G. "Perceptions of dental fluorosis in the Central Karoo District of the Western Cape Province." University of the Western Cape, 2013. http://hdl.handle.net/11394/4831.
Full textDental fluorosis is an endemic condition in a number of regions of South Africa, varying in degree of affliction according to the drinking water fluoride concentration in the area. Objective: While a number of South African studies have reported on the relationship between fluorosis and fluoride concentration in the drinking water, the purpose of this study was to determine perceptions of dental fluorosis in the Central Karoo District of the Western Cape. Methods: Learners aged 12-15 years and who had been lifelong residents in their respective areas were selected from schools in Leeu Gamka, Merweville, Nelspoort and Murraysburg. All the children meeting the inclusion criteria were included realising a total sample of 189. Drinking water fluoride concentration of each town was determined and concomitant fluorosis affliction was assessed. An interviewer administered questionnaire was used to determine respondents’ self-rated perceptions of fluorosis as well as their responses to a set of statements on clinically defined fluorosis. To this end four photographs, each depicting a different degree of fluorosis: (No fluorosis; Mild fluorosis; Moderate fluorosis; Severe fluorosis) were shown to the respondents. Results: In Leeu Gamka, with the highest fluoride concentration ([F] = 1.62ppm), 82% of respondents were aware of fluorosis stains as opposed to 6%-20% awareness in Merweville ([F] = 0.68), Nelspoort ([F] = 0.70) and Murraysburg ([F] = 0.56). Two thirds of respondents in Leeu Gamka found the appearance of their teeth embarrassing compared to only 2%-10% in the other 3 areas. The majority of respondents in Leeu Gamka (82%) indicated that they would want to remove the fluorosis spots with only 4%-20% in the lower fluoride areas. Two thirds (67%) of the Leeu Gamka respondents were teased compared to 2%-6% in the other areas. Most of the respondents have not tried to do anything to the appearance of the teeth, even in the higher fluoride area of Leeu Gamka. The average response varied little for all the photographs across the geographic areas (the minimum and maximum scores varied between 4.00 and 5.00) and reflected a greater tendency towards strongly disagreeing with the statement on aesthetics-even for the photographs depicting no fluorosis and mild fluorosis. The average response varied between 1 and 2 among all four geographic regions showing a tendency to “agree” and “strongly agree” to the statement on embarrassment. The average response to the statement on neglect varied little for all the photographs across the geographic areas as the minimum and maximum average response scores varied between 1.36 and 2.39 (agree and strongly agree). The response to the statement on disadvantage varied little for all the four photographs across the geographic areas (minimum=1.00, maximum=2.07) and reflected a greater tendency toward strongly agreeing and agreeing with the statement. Conclusion: The respondents from the higher fluoride area were more aware of dental fluorosis, had a greater perception of embarrassment and the strongest desire to remove the fluorosis staining. There was little variation in the average response to the statements on clinically defined fluorosis across the geographic areas. The learners erroneously believed that dental fluorosis was due to neglect, which is an indication that many learners are not aware of the cause of dental fluorosis in their community. The general consensus of the communities was that fluorosis was judged with feelings of negativity (embarrassment and a disadvantage for the child into adulthood).
Vásquez, Garay Sebastián. "Prevalencia y severidad de fluorosis dental en escolares de 6 a 12 años de edad de la Región Metropolitana." Tesis, Universidad de Chile, 2016. http://repositorio.uchile.cl/handle/2250/142541.
Full textIntroducción: La prevalencia de la fluorosis dental ha ido en aumento a nivel mundial como efecto asociado al amplio uso de fluoruros utilizados para evitar lesiones de caries dental. El objetivo de este estudio fue actualizar al año 2015 la prevalencia y severidad de fluorosis dental en escolares de 6 a 12 años de edad en la Región Metropolitana. Materiales y métodos: 851 escolares de 6 a 12 años de edad de 3 comunas de la Región Metropolitana fueron examinados. Se realizó examen clínico intraoral y registró COPD (OMS), presencia y/o ausencia de fluorosis y grado de severidad de acuerdo al Índice Thylstup y Fejerskov. Se determinó la distribución de la fluorosis de acuerdo a sexo, edad y nivel socioeconómico de los escolares. Los datos fueron analizados por el programa SPSS, test de Kruskal-Wallis y Mann-Whitney con un intervalo de confianza del 95%. Resultados: La prevalencia de fluorosis dental fue de un 57.6% (n=490). El 43.9% de los casos correspondieron a fluorosis grado 1 y 2. Un 11.28% correspondió a grado 3, y un 2.47% a los grados 4, 5 y 6 en conjunto. La distribución por sexo fue de 56.2% en hombres, 58.5 % en mujeres, no se encontró diferencia significativa entre ambos sexos (p=0.51). La mayor severidad se detectó a los 12 años (p=0.01). La prevalencia en el estrato I fue 40.4%, en el II 69.2% y en el III fue 63.8%, con diferencias significativas entre el estrato socioeconómico I y II, y I y III (p<0.01). En escolares con fluorosis el índice COPD fue 0.45, ceod 1.31, y en escolares sin fluorosis COPD fue 0.49 y ceod 1.58, habiendo diferencia significativa entre los índices ceod (p=0.014). Conclusión: La prevalencia de fluorosis dental en escolares de 6 a 12 años de edad en la Región Metropolitana es alta, de un 57.6%, con una mayor severidad a los 12 años de edad. No se encontró diferencia significativa entre ambos sexos. La menor prevalencia se encontró en el estrato socioeconómico alto. Escolares con fluorosis mostraron menor historia de caries que escolares sin fluorosis.
Adscrito a Proyecto FONIS-CONICYT SA14/D0056 "Prevalencia de la hipomineralización incisivo molar en niños de 6 a 12 años y determinación de sus consecuencias clínicas.
Sarquis, Abumohor María Ignacia. "Asociación de hipomineralización incisivo molar y prevalencia de caries en escolares de 6 a 12 años de la Provincia de Santiago, Región Metropolitana." Tesis, Universidad de Chile, 2017. http://repositorio.uchile.cl/handle/2250/143485.
Full textIntroducción: La Hipomineralización Incisivo Molar (HIM) se define como un defecto cualitativo del esmalte que afecta a uno o más primeros molares permanentes y a veces se asocia a incisivos permanentes. Su etiología no está completamente clara y la prevalencia reportada es variable. Clínicamente va desde opacidades demarcadas con límites definidos hasta restauraciones atípicas o gran pérdida de estructura coronaria. Al ser un esmalte más poroso provoca hipersensibilidad dentaria, fracturas de esmalte bajo fuerzas normales y favorece el desarrollo y avance de lesiones de caries. El objetivo de este estudio fue establecer si existen diferencias significativas en los índices COPD/ceod entre escolares de 6 a 12 años con presencia de HIM y escolares sin HIM de la provincia de Santiago. Material y métodos: Este estudio observacional, descriptivo y de corte transversal fue realizado en 1270 escolares de 6 a 12 años de la provincia de Santiago, seleccionados aleatoriamente y estratificados por nivel socioeconómico cuyos padres aceptaron su participación mediante consentimiento informado. Los escolares fueron evaluados por dos examinadores calibrados que utilizaron los criterios diagnósticos de la Academia Europea de Odontología Pediátrica (EAPD) para la detección de HIM y los criterios de la OMS para determinar historia de lesiones de caries a través de índice COPD/ceod. Los datos fueron consignados en un formulario diseñado para esta investigación y analizados mediante la Prueba Z y la Prueba de Mann-Whitney (considerando p<0,05) Resultados: La prevalencia de HIM fue de 12,8%. El COPD/ceod en escolares con HIM fue 1,00 y 1,88 respectivamente y en escolares sin HIM 0,43 y 1,65 respectivamente. La diferencia entre ambos grupos fue significativa sólo para COPD (p=0,000). Los componentes del COPD en pacientes con HIM fueron C=0,32; O=0,64 y P=0,04 y en grupo control C=0,13; O=0,29 y P=0,01. En los tres casos se encontró diferencia significativa (p<0,001; p<0,001 y p=0,003). Conclusión: Escolares de 6 a 12 años de la provincia de Santiago afectados con HIM presentan mayor COPD, independientemente del sexo y el estrato socioeconómico que escolares sin HIM. En todos los subcomponentes del índice el valor es mayor en los pacientes con HIM. En contraste, en el índice ceod y en los subcomponentes de éste no se encontraron diferencias significativas al comparar entre escolares con y sin HIM.
Adscrito a Proyecto FONIS-CONICYT SA14/D0056.
Contreras, Molina Alejandra. "Prevalencia de fluorosis dental y distribución de su grado de severidad en niños de 6 a 12 años de edad de la Provincia de Santiago." Tesis, Universidad de Chile, 2017. http://repositorio.uchile.cl/handle/2250/143447.
Full textIntroducción: La Fluorosis Dental ha ido en aumento en Chile como a nivel mundial, asociado a la utilización de fluoruros como principal estrategia para la prevención y control de la caries dental. El objetivo fue determinar la prevalencia y severidad de Fluorosis Dental en niños de 6 a 12 años de edad de la Provincia de Santiago. Materiales y métodos: Corresponde a un estudio observacional, transversal y descriptivo, en el cual se evaluaron 1270 niños de 6 a 12 años de edad de distinto estrato socioeconómico de 7 colegios de la Provincia de Santiago. Se realizó el examen clínico intraoral por dos examinadores previamente calibrados, registrando presencia o ausencia de Fluorosis y su grado de severidad aplicando el Índice de Thylstrup y Fejerskov, basado en 10 parámetros clínicos. Se determinó la distribución de Fluorosis según sexo, edad y estrato socioeconómico. Los datos fueron analizados por el programa SSPS y test de Chi-cuadrado con un valor de significancia estadística del 95% (p=0,05) Resultados: La prevalencia de Fluorosis Dental fue 53,9% (n=684). De los individuos que presentaron Fluorosis el 41,1% correspondió al grado 1, el 35,2% al grado 2, el 20,3% al grado 3 y el 3,4% a los grados 4,5 y 6. La distribución por sexo fue 56,5% en mujeres y 51,1% en hombres, no encontrándose diferencia significativa entre ambos sexos (p=0,05). Se observó la menor prevalencia de Fluorosis a los 6 años con 45,7% y la mayor a los 12 años con 62% no observándose diferencia significativa por edad (p=0,091). La prevalencia en el estrato socioeconómico I fue 41,9%, en el estrato II 53,5% y en el estrato III 63,8% existiendo diferencia significativa (p=0,00). Conclusión: La prevalencia de Fluorosis Dental en niños de 6 a 12 años de edad de la Provincia de Santiago es 53,9% predominando en quiénes presentaron la condición los grados de severidad 1, 2 y 3 del Índice TF con 96,6%. Se encontró relación estadísticamente significativa entre el estrato socioeconómico y prevalencia de Fluorosis, predominando en el estrato socioeconómico III. No se encontró relación estadísticamente significativa de presencia de Fluorosis con el sexo ni la edad.
Adscrito a Proyecto FONIS-CONICYT SA14/D0056 "Prevalencia de la hipomineralización incisivo molar en niños de 6 a 12 años y determinación de sus consecuencias clínicas"
Hoskin, Greg W. "Social impact of dental fluorosis in South Australian school children /." Title page, table of contents and abstract only, 1997. http://web4.library.adelaide.edu.au/theses/09MPM/09mpmh826.pdf.
Full textMacek, Mark D. "The relationship of socioeconomic status to the prevalence of dental caries and fluorosis in the elementary schoolchildren of Genesee County, Michigan." Ann Arbor, Mich. : University of Michigan, 1998. http://books.google.com/books?id=lBQvAAAAMAAJ.
Full textPeres, Paulo Edelvar Correa. "Avaliação in situ de uma formulação de dentifricio com concentração reduzida de fluor." [s.n.], 2001. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289303.
Full textTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
Made available in DSpace on 2018-07-28T23:32:23Z (GMT). No. of bitstreams: 1 Peres_PauloEdelvarCorrea_D.pdf: 4915195 bytes, checksum: 619924c2c327c85d68fb00aed77138c1 (MD5) Previous issue date: 2001
Resumo: Nas últimas décadas ocorreu um dec1ínio na prevalência de cárie na maioria dos países desenvolvidos e em desenvolvimento e um concomitante aumento na prevalência da fluorose dental. Assim o desenvolvimento de um dentiftício para crianças, com concentração reduzida de flúor poderia proporcionar maior segurança em relação a fluorose dental, desde que provasse ser tão eficiente quanto um dentiftício convencional. A avaliação in vitro demonstrou que a reatividade de uma formulação contendo 550 ppm F foi melhorada, aumentando a incorporação de flúor no esmalte dental bovino com desempenho similar a um dentiftício convencional com 1100 ppm F. Resultados preliminares sobre esta formulação, com o uso de placas palatinas, demonstraram sua eficácia em reduzir a desmineralização do esmalte. Entretanto não foi avaliada a relação dose/efeito, como também não foi utilizado como controle um dentiftício "Gold Standard" para demonstrar equivalência de efeito. Para avaliação do dentiftício foi realizado um estudo cruzado, duplo-cego, composto de 5 etapas, onde 15 voluntários adultos, usando prótese parcial removível, contendo 4 blocos de esmalte bovino, sendo 2 hígidos e 2 com lesão artificial subsuperficial de cárie. Os voluntários foram submetidos aos seguintes tratamentos com dentiftícios: 1= Não Fluoretado; 11= 275 ppm F; III=550 ppm F; IV= 1100 ppm F; V= Crest ("Gold Standard" ) 1100 ppm F. Os dentiftícios experimentaís são a base de sílica e foram formuladas com pH 5,5 para melhorar a reatividade do flúor (NaF) com o esmalte dental. Análises da dureza (Knoop) do esmalte superficial e seccionado longitudinalmente foram determinadas nos blocos. O esmalte também foi submetido a analises para avaliação do flúor incorporado. Os resultados demonstram que a formulação com 550 ppm F foi mais eficiente que os dentiftícios placebo e 275 ppm F (p
Abstract: In the last decades there was a caries decline in most of the countries of the world, but at the same time the prevalence of dental fluorosis increased. Thus, the development of a dentifrice for children with low fluoride concentration would offer higher safety with regard to dental fluorosis, as long as it prove to be as efficient as a conventional one with 1000-1100 ppm F. The in vitro evaluation showed that the reactivity of a formulation containing 550 ppm F was improved, increasing the fluoride incorporation in dental enamel with action similar to a conventional dentifrice with 1100 ppm F. Preliminary results of this formulation, using palatal appliances, showed its efficiency on reducing enamel demineralization. Nevertheless, the dose/effect relationship was not evaluated, as well as a control such as a Gold Standard dentifrice was not used to demonstrate equivalence of effect. A 5 step double-blind crossover study was conducted with 15 adult volunteers wearing removable prosthesis, containing 4 bovine enamel blocks, 2 sound and 2 with subsuperficial caries lesions. The volunteers were submitted to the following treatments with dentifrices: 1= Non-fluoridated; II=275 ppm F; III=550 ppm F; IV= 1100 ppm F; V= Crest ("Gold Standard", 1100 ppm F). The dentifrices were silica-based and the formulations were modified (PH5,5) to improve the reactivity of fluoride (NaF) with dental enamel. Surface and cross sectional enamel microhardness (Knoop) were determined in the blocks. Enamel was also analyzed to evaluate fluoride uptake. The data showed that the formulation with 550 ppm F was more efficient than placebo and the one with 275 ppm F (p<0.05) and it was equivalent to the "gold standard"(p>0,05) in: 1) Reducing enamel demineralization on surface and in caries lesion; 2) Enhancing enamel remineralization on surface and in caries lesion; 3) Increasing fluoride in sound and carious enamel. The data suggest that the experimental formulation with lower fluoride concentration could have the same anticaries efficiency as the conventional and would be more safe with respect to dental fluorosis
Doutorado
Doutor em Biologia e Patologia Buco-Dental
Marques, Livia Bino [UNESP]. "Prevalência e autopercepção da fluorose dentária em crianças de 12 anos de idade do município de Birigüi-SP." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/95434.
Full textNo Brasil, atualmente a fluorose dentária existente é classificada como leve e muito leve, porém com o uso do flúor nas suas diversas formas, há uma preocupação de que haja um aumento na prevalência da fluorose dentária. O objetivo deste estudo foi verificar a prevalência da fluorose dentária em crianças de 12 anos de idade e sua autopercepção. Foi realizado um estudo transversal, observacional e analítico com todas as crianças de 12 anos de idade das escolas públicas do município. Para análise da prevalência da fluorose dentária foi realizado exame clínico bucal, utilizando-se o Índice de Dean Modificado e, através de um questionário estruturado, foi possível avaliar a percepção da fluorose e sua influência na qualidade de vida destas crianças. Participaram do estudo 496 crianças do município de Birigüi-SP, sudeste do Brasil, os quais foram examinados por dois cirurgiões-dentistas devidamente calibrados, após obtenção de kappa>0,80. O teste estatístico utilizado foi o Qui-quadrado, com nível de significância de 5%. Foram examinadas 259 (52,2%) crianças do sexo feminino e 237 (47,8%) do sexo masculino. Do total, 320 crianças apresentaram algum sinal clínico de fluorose, sendo 220 (44,4%) com fluorose muito leve, 59 (11,9%) leve, 12 (2,4%) moderada, 1 (0,2%) severa e 28 (5,6%) apresentaram fluorose questionável, enquanto 176 (35,5%) não apresentaram fluorose. Das 292 crianças que apresentaram algum sinal clínico de fluorose, 117 (40,0%) observaram a presença de manchas em seus dentes e 175 (60,0%) não as perceberam, não havendo diferença significante quando se relacionou percepção da fluorose e gênero. Os resultados mostraram que apesar de a prevalência de fluorose ter sido alta, o grau predominante foi muito leve, não influenciando na percepção e qualidade de vida da população estudada.
In Brazil as a whole, dental fluorosis is classified as light or very light, but with the use of fluoride in its various forms there is a concern that there is an increase in the prevalence of dental fluorosis. The aim of this study was to verify the prevalence of dental fluorosis in children aged 12 and its dental fluorosis self-perception. This study is observational, cross-sectional and analytical. A total of 496 children from the city of Birigüi, São Paulo, Southeastern Brazil, took part in study. The children were examined by two calibrated dentists, after a kappa>0,80. To assess the prevalence of fluorosis, clinical examinations were performed according to the methodology set forth by the 4 th edition of the WHO. A structured questionnaire was used to evaluate dental fluorosis selfperception. The statistical analysis used was the Chi-squared test with a 5% significance level. Of the total number of children examined, 259 (52.2%) were of the female gender and 237 (47.8%) were of the male gender. Of the total, 320 children presented some degree of fluorosis, 220 (44.4%) with very light fluorosis (Grade 2), 59 (11.9%) light, (Grade 3), 12 (2.4%) moderate (grade 4), 1 (0.2%) severe (grade 5), 28 (5.6%) showed questionable fluorosis (Grade 1) and 176 (35.5%) showed no fluorosis (grade 0). Of the 292 children who presented some degree of fluorosis, 117 (40.0%) reported the presence of stains on their teeth and 175 (60.0%) not to realized, with no significant difference when related perception of fluorosis and gender. The results showed that although the prevalence of fluorosis has been high, the level prevailing was very light, not influencing the perception and quality of life of the population.
Pardavé, Ponce Maricé Maribé. "Prevalencia y niveles de fluorosis dental en adolescentes de 12 a 15 años de Instituciones Educativas Estatales del distrito de Carmen de la Legua de la Provincia Constitucional del Callao en el año 2015." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2015. https://hdl.handle.net/20.500.12672/4593.
Full text--- Dental fluorosis is a condition that occurs as a result of excessive intake of fluoride during the teeth development and is characterized by lesions ranging from small changes in the translucency of normal enamel, opaque areas of white or brown pigment on the surface of the teeth to individual pits due to the porosity of the enamel. The aim of this study was to determine the prevalence and levels of dental fluorosis in adolescents from 12 to 15 years old. We evaluated 252 schoolchildren from the two state educational institutions: Augusto Salazar Bondy and Raul Porras Barrenechea from district of Carmen de la Legua; also they were assigned a questionnaire to determine the relationship between dental fluorosis and risk factors such as intake of toothpaste in childhood and topical application The prevalence of fluorosis was 44.8%, the most affected age was 13 years with 15.1% and male gender with 27.4%. According to levels, 34.9% of all evaluated showed very mild fluorosis. Statistical association was found with the variables male gender (p = 0.032) and number of topical applications of fluoride (p = 0.01). It can consider the number of topical fluoride applications received as a risk factor for the prevalence and levels of dental fluorosis. According to ICF dental fluorosis is located on the edge of being a public health problem in the studied sample. Keywords: dental fluorosis, prevalence, risk factors.
Tesis
Bhagavatula, Naga V. R. N. Pradeep. "Fluorosis in the early permanent dentition: evaluating gene-environment interactions." Thesis, University of Iowa, 2009. https://ir.uiowa.edu/etd/281.
Full textFrossard, Wanda Terezinha Garbelini. "Ocorrência de opacidade difusa em molares decíduos como fator preditivo no diagnóstico de fluorose dentária em dentes permanentes /." Araçatuba, 2003. http://hdl.handle.net/11449/104255.
Full textBanca: Luiz Reynaldo de Figueiredo Walter
Banca: Aymar Pavarini
Banca: Maria Celeste Morita
Banca: Alberto Carlos Botazzo Delbem
Resumo: O objetivo do presente estudo foi identificar fatores associados à fluorose dentária, em uma localidade com níveis de concentração de flúor variando de 0,07 a 2,06 mgL/F. Das 727 crianças, de 6 a 10 anos de idade, matriculadas na rede de ensino público do município de Itambaracá, PR, no ano de 2001, examinaram-se 602 e, após computadas as perdas e as exclusões, 353 permaneceram como população de estudo. Os pais ou responsáveis responderam um formulário sobre a história médica e gestacional da criança, dieta láctea e fontes de exposição ao flúor no primeiro ano de vida. Os exames clínicos foram realizados nas próprias escolas, por dois cirurgiões dentistas previamente treinados e calibrados, sendo que um avaliou as opacidades difusas nos molares decíduos, através do Índice DDE e outro, a fluorose dentária na dentição permanente, pelo Índice de Dean. A análise bivariada mostrou haver relação entre a patologia e: os níveis de flúor no município, uso de dentifrício fluorado e a presença de doenças no primeiro ano de vida. Na análise multivariada foram considerados como fatores de risco: a presença de doenças e o uso de leite em pó diluído em água fluorada, no primeiro ano de vida, além do fator mais fortemente associado à fluorose, a presença de opacidades difusas nos molares decíduos (odds ratio = 22,97). A obtenção criteriosa de informações sobre a história médica e o padrão de consumo de leite, associados ao exame clínico dos molares decíduos, tão logo erupcionem, podem contribuir na identificação das crianças com maiores possibilidades de desenvolver a fluorose dentária, na dentição permanente.
Abstract: The aim of this study was to identify association factors of dental fluorosis in a community where the amount of fluoride in drinking water vary from 0,07 to 2,06ppmF. Among the 727 children aged 6 to 10 year-old regularly enrolled in public schools at Itambaracá-PR in 2001, 602 were examined, and after excluding criteria and loses were computed, 353 remained as study population. A questionnaire about gestational and medical histories, pattern of milk consumption and fluoride exposition in the first year of life was answered by the child's parents. Clinical examination was performed at the schools, by two previously trained and calibrated dentists. One evaluated enamel opacities in deciduous teeth through DDE index, and the other dental fluorosis in permanent teeth by Dean's index. Bivariate analysis displayed a relationship of dental fluorosis and place of residence according to the amount of fluoride in drinking water, use of fluorided dentifrice and systemic diseases in the first year of life. In multivariable analysis the observed risk factors were the use of powered milk reconstituted with fluorided water, and systemic diseases, both in the first year of life, and the most strongly associated one was the presence of diffused opacities in primary molars (odds ratio=22,97). To achieve standard information about medical history and pattern of milk consumption and a clinical examination of the deciduous molars as soon as they erupt can contribute in identifying children that have larger possibilities of developing dental fluorosis in permanent teeth.
Doutor
Sousa, Kathleen Rebelo de 1966. "Alterações de saúde bucal e sua relação com alimentos, autopercepção e as águas de consumo em dois municípios da região norte do Brasil, do estado do Amazonas." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288015.
Full textTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: Capitulo 1 - Objetivo: Conhecer as condições de saúde bucal dos escolares aos 12 anos de idade, em relação à carie dentaria e fluorose em Manaus-AM, que não tinha fluoretação daáagua de abastecimento público, no ano de 2003. Metodologia: Os dados do presente trabalho foram obtidos do Projeto SB Brasil 2003 (MS, 2004) que incluiu no estudo epidemiológico todas as capitais brasileiras. Foi realizada amostragem probabilística por conglomerados para a seleção das escolas e das crianças. Resultados: Foram examinadas 102 crianças de 12 anos das escolas publicas de Manaus. O CPO-D em Manaus (2003) foi de 3,20 (±3,93), sendo dentes cariados o maior componente do índice (54,5%). A prevalência de fluorose nos escolares foi de 8%. Conclusão: No presente estudo o CPOD encontrado não atingiu a meta da OMS para o ano de 2000 (escolares aos 12 anos - CPOD '< ou =' 3,0) e ficou distante de atingir a meta da OMS para 2010 (CPOD < 1,0), necessitando assim implementação de atividades preventivas e curativas para saúde bucal destes escolares, bem como constante monitoramento destas condições, e a utilização de um método coletivo de uso do fluoreto. A maioria dos escolares aos 12 anos estavam livres de fluorose (92%). Capitulo 2 - Objetivo: Verificar a prevalência das alterações de coloração de esmalte de caráter extrínseco bem como a sua relação com a qualidade da agua na cidade de Caapiranga/AM. Metodologia: Foram examinados 346 moradores da zona urbana do município que também responderam a um questionário de hábitos alimentares e autopercepção de saúde bucal. As residências foram as unidades amostrais, que foram sorteadas aleatoriamente.... Observação: O resumo, na íntegra, poderá ser visualizado no texto completo da tese digital
Abstract: Chapter 1 - Goal: Understand the oral health status of the 12 year old scholars in relation to dental caries and fluorosis in Manaus-AM, which has no fluoridation of public water supply in the year 2003. Methodology: The data in this paper was obtained from the SB Brazil Project 2003 (MS, 2004) that included, in this epidemiological study, all Brazilian capitals. Was performed by cluster random sampling for selection of schools and children, allowing the production of inferences. Results: We examined 102 12 year old children of public schools in Manaus. DMFT in Manaus (2003) was 3.20 (+ or - 3.93), and decayed teeth the largest component of the index (54.5%). The prevalence of fluorosis in children was 8%, and only 6 students had very mild fluorosis (5.88%) and 01 mild fluorosis (0.98%). Conclusion: In this study the DMFT found did not reach the WHO target for the year 2000 (school for 12 years - DMFT < or - 3.0) and was far from attaining the goal of WHO in 2010 (DMFT <1.0), thus requiring the implementation of preventive and curative oral health for these students, as well as constant monitoring of these conditions, and using a collective method of use of fluoride. Most of the 12-year-olds were free from fluorosis (92%). Chapter 2 - Purpose: To investigate the possible relationship of changes in tooth color of extrinsic character and water quality in the city of Caapiranga - AM. Methodology: 346 residents of the urban area were examined, who also answered a questionnaire on dietary habits and oral health perception. The homes were the sampling units and were randomly selected.... Note: The complete abstract is available with the full electronic digital thesis or dissertations
Doutorado
Saude Coletiva
Doutor em Odontologia
Morais, Ianara Ribeiro de. "Fluorose DentÃria: Um estudo epidemiolÃgico em escolares de 10 a 14 anos numa comunidade rural com altos teores naturais de flÃor na Ãgua de consumo, Sobral - CE." Universidade Federal do CearÃ, 1999. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=10633.
Full textEspinoza, Villarroel Pamela Alejandra. "Prevalencia de caries y fluorosis en niños de 8 años que residen desde su nacimiento en comunas con agua potable fluorada y no fluorada." Tesis, Universidad de Chile, 2010. http://repositorio.uchile.cl/handle/2250/134222.
Full textAutor no autoriza el acceso a texto completo de su documento
El siguiente trabajo describe los resultados de una investigación que determinó prevalencia y severidad de caries dental y fluorosis en niños y niñas de 8 años, que residen desde su nacimiento en las comunas de Independencia ( suplementada artificialmente con fluoruros en sus aguas de consumo ) y de Maipú ( carente de Flúor en sus aguas ) . Se seleccionó una muestra por conveniencia de 100 niños de 8 años, 50 niños de la comuna de Independencia y 50 de la comuna de Maipú. Para establecer el porcentaje de niños libre de caries se utilizó la metodología descrita por la OMS; para determinar la severidad se utilizaron los índices c.e.o.d. y C.O.P.D. y para diagnosticar prevalencia y severidad de fluorosis se utilizó el Índice de Dean. El estudio reveló que el porcentaje de niños libre de caries alcanzaba el 38% en la comuna de Independencia y el 10% en la de Maipú, sin diferencias significativas entre los géneros. Para la severidad de caries, el índice c.e.o.d. en la comuna de Independencia fue de 2,14 desglosado en: 0,54 cariadas; 0,04 con indicación de extracción y 1,58 obturadas. Para la comuna de Maipú fue de 3,82 desglosado en: 1,56 cariadas; 0,46 con indicación de extracción y 1,84 obturadas. . El índice C.O.P.D. para Independencia fue de 0,92 desglosado en: 0,26 cariadas; 0,66 obturadas y 0 perdidas. Para Maipú el valor fue de 1,48 desglosado en: 1,02 cariadas; 0,36 obturadas y 0,1 perdidas. En ambos índices, no se encontraron diferencias significativas. La prevalencia de fluorosis en la comuna de Independencia fue de un 48,8%. Los casos descritos correspondieron a las categorías Muy Leve y Leve, principalmente. En la comuna de Maipú, la prevalencia de fluorosis fue de 16%. La mayoría de los casos correspondieron a la categoría Muy Leve. Tampoco se encontraron diferencias significativas entre géneros para fluorosis. Se concluye que el aporte de flúor en el agua potable produce en los niños de 8 años una disminución en la prevalencia y severidad de la caries dental, así como un aumento en la prevalencia y severidad de la fluorosis.
Catani, Danilo Bonadia. "Influencia do heterocontrole de fluor na ocorrencia de fluorose na dentição permanente." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289316.
Full textDissertação (mestrado profissional) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: O objetivo geral deste estudo, composto por dois trabalhos, foi analisar as possíveis relações entre a exposição a níveis diferenciados de íon flúor na água de abastecimento público e a presença de fluorose dentária na dentição permanente, e analisar os possíveis fatores associados. No primeiro trabalho foi analisada a concentração de fluoreto em amostras de água enviadas de 07 cidades do estado de São Paulo, além de um município no Estado de Minas Gerais e outro no Ceará. As coletas das amostras de água foram realizadas no período de 1996 a 2002, sendo as mesmas avaliadas utilizando-se um analisador de íons (Orion 96-09 e analisador de íons EA-940 previamente calibrados com padrões contidos de 0,125 a 1,0 mg F/ml , com 1,0 ml de Tisab II, ou seja, Tisab II a 50%) acoplado a um eletrodo de flúor previamente calibrado. Num total de 2667 amostras no período analisado, observou-se que mais que 59,2% das amostras encontraram-se dentro dos padrões considerados ótimos (0,6?0,8 ppm F), sendo 6,3% das amostras com valores menores que 0,4 ppm F, 18,1% entre 0,4 a 0,6 ppm F,13,3% entre 0,8 a 1,0 ppm F e 3,1% com valores maiores que 1 ppm F. Pode-se concluir, portanto, que a maioria das amostras coletadas estavam no considerado nível ótimo (0,6?0,8 ppm F), contudo verifica-se que há dados e regiões que estão fora do padrão considerado ideal, sendo importante a manutenção do heterocontrole. O objetivo do segundo trabalho foi verificar a prevalência da fluorose dentária em escolares de 7 anos de idade residentes em dois municípios que se diferenciam quanto aos níveis ótimos de flúor na água de abastecimento público, e investigar possíveis fatores associados. A amostra deste estudo foi composta por 386 crianças de 7 anos de idade, nascidas no ano de 1997, matriculadas em escolas públicas e instituições privadas de ensino em municípios que realizaram heterocontrole de flúor na água de 1998 a 2002. A fluorose dental foi avaliada por meio do índice de Dean. Foram examinados os incisivos superiores permanentes, previamente secos e sob iluminação artificial com equipamento odontológico portátil. Considerou-se como presença de fluorose as formas: questionável, muito leve, leve, moderada e severa. Variáveis sócio-demográficas e questões sobre saúde bucal foram avaliadas com um questionário estruturado enviado aos pais/responsáveis. Os resultados mostraram que a prevalência de fluorose no município com níveis oscilantes de íon flúor foi de 31,40% e no município com níveis homogêneos de fluoretos 79,91%. Entretanto, em ambos os municípios, prevaleceu o grau "muito leve" de fluorose, portanto sem comprometimento estético. A prevalência de fluorose foi associada com o município com teores de flúor constante na água e com um único indicador sócio-econômico
Abstract: The general objective of this paper, based over two works, was to analyze possible relationships among different levels of fluoride ions in the public water supply and the presence of dental fluorosis in permanent teeth. Associated factors are also to be analyzed. At the first stage of the process, fluoride concentration present in water samples sent from 7 cities of São Paulo State, one city of Minas Gerais State and another from Ceará State were to be analyzed. All the water sample collections took place during the period of 1996 and 2002 and an ion analyzer was used in the process of evaluation (Orion 96-09 and a ion analyzer EA-940 previously gauged with patterns of 0.125 to 1.0 mg F/ml, with 1.0 ml of Tisab II, so, Tisab II at 50%) coupling to a fluoride electrode previously gauged as well. Over a total of 2667 samples collected in the mentioned period it was noted that more than 59.2% of them were found to contain patterns considered great (0.6-0.8 ppm F ), 6.3% of them with lower values than 0.4 ppm F; 18.1% of them between 0.4 to 0.6 ppm F; 13.3 % between 0.8 and 1.0 ppm and 3.1% with values larger than 1 ppm F. In view of the aforementioned results it is possible to concluded that the majority of collected samples were in the level range considered optimal (0.6-0.8 ppm F). However, it was possible to also verify that some of the results and regions are out of the considered ideal pattern implying that hetero-controlling maintenance is important. The objective of the second work was to evaluate the prevalence and correlates of dental fluorosis in school children aged 7 years living in two cities of São Paulo State, Brazil, with fluoridation of water supplies, with emphasis in the effects of external control of the fluoride levels. The study population comprised 386 children, all born in 1997 and enrolled in public and private schools from 2 municipalities had fluoride external control of the fluoride levels from 1998 to 2002. The upper permanent maxillary incisors were examined under artificial light and the aid of an air syringe. The Deanâ?¿s Index was utilized to identify dental fluorosis. In this study dental fluorosis were considered such as: questionable; very mild; mild; moderate and severe. Socio-demographics and dental history were assessed with a structured questionnaire answered by childrenâ?¿s parents. Correlates of fluorosis were assessed using multivariate logistic regression (p<0.05).The result showed that the prevalence of fluorosis in the municipality that had more variation in the levels of fluoride was 31.40% and in the municipality that had less variation in the levels of fluoride 79.91%. However, in both municipalities the â?¿very mildâ?? level of fluorosis was the most common finding. Fluorosis were associated to the city with homogeneous levels of fluoride
Mestrado
Mestre em Odontologia em Saúde Coletiva
Forni, Tania Izabel Bighetti. "Fatores associados à fluorose dentária em área com água fluoretada." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/6/6135/tde-22092011-145657/.
Full textThe purpose of this study was to identify factors associated with fluorosis in the city of Ribeirão Pires SP, which has fluoridated water since 1985, (with hetero-controls of fluoride levels since 1996). It was done an epidemiological case-control study which project was approved by the Ethics Committee of the FSP-USP. The study population consisted of 12 to 15 year old teenagers, identified by a trained dentist (k=0.79) in 23 high schools. 667 teenagers who showed fluorosis levels of 2, 3, 4 or 5 (Dean Index) were selected for this study. 416 children of the same age and sex and living in the same area were also identified as controls (fluorosis level = 0) in order to assure the same distribution by region. Cases and controls (5 per cent ) were examined (k=0.90) by the author. A questionnaire was elaborated, using the exploratory survey method, with data related to demographic, geographic, education level of parents/guardians, related to fluoride sources exposure in 3 different periods of life (first year, 1 to 3 years and 4 to 6 years of age). Data was collected by 55 interviewers whose training consisted of repeated interviews and case discussions. 509 interviews were made (319 cases and 190 controls) and the responses were transcribed and typed twice, with posterior validation of the database. Percentile distribution of the events of cases and controls of exposition categories were analyzed using Pearson Chi-Square test. In the univariable analysis, the variables with higher match were identified for posterior construction of models of non-conditional multiple logistic regression analyses. The analysis of regression showed significant risk for dental fluorosis in the following exposure situations: when the teenagers used fluoridated dentifrice during the first 6 years of life (OR=2.25; p=0.048) and they were responsible for its placement in a period of 4 to 6 years (OR=2.17; p=0.000), when it was used fluoridated water for food preparation during the 6 first years of life (OR=2.90; p=0.026) and in the relation of high educational level of the father and lower educational level of the mother (OR=2.15; p=0.024). It is recommended that the health services should consider these results in the planning of actions of health education activities in order to emphasize the importance of adequate use of dentifrices, and to maintain their sanitary control policies focused on multiple sources of fluoride
Barbosa, Tatiana de Freitas [UNESP]. "Fluorose dentária e concentração de flúor nas unhas de crianças residentes em diferentes áreas fluoretadas." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/95402.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
A fluoretação das águas de abastecimento público tem ocasionado significante redução na prevalência da cárie em diferentes populações, entretanto, a exposição ao flúor pelo uso de diferentes métodos tem trazido preocupações quanto ao aumento na prevalência de fluorose dentária. Por isso, estudos sobre os fatores de risco associados à fluorose são necessários, além do acompanhamento contínuo e efetivo da exposição ao flúor, por diferentes meios, incluindo mais recentemente os marcadores biológicos para esse íon, como a unha, que também reflete o nível de exposição crônica, desde que um indivíduo tenha uma ingestão de flúor relativamente constante. Assim, objetivou-se analisar o teor de fluoreto das águas de abastecimento público em diferentes áreas de um município, uma abastecida por poços profundos e outra pela estação de tratamento de água (ETA), e verificar se os teores de fluoretos encontrados refletem diferenças nas concentrações de flúor observadas nas unhas das crianças de 12 anos e na prevalência de fluorose dentária. Para isso, foram selecionados 43 pontos para coleta de amostras de água, abrangendo as 17 fontes de abastecimento existente no município. A população de estudo foi constituída por 60 crianças, de 12 anos de idade, nascidas e moradoras permanentes nas duas áreas de estudo, seguindo os critérios de inclusão, sendo uma com excesso e outra sem excesso de flúor nas águas de abastecimento público. As amostras de água, coletadas mensalmente nos pontos previamente estabelecidos, foram analisadas em duplicata no período de janeiro a dezembro de 2009, utilizando-se um analisador de íons acoplado a um eletrodo específico para flúor. Coletas e análise do flúor nas unhas das crianças foram realizadas, utilizando-se a técnica da microdifusão facilitada por HMDS. Para verificação da fluorose...
The fluoridation of public water supply has caused a significant reduction in the prevalence of caries in different populations, however, exposure to fluoride by using different methods has brought concerns about the increasing prevalence of dental fluorosis. Therefore, studies on the risk factors associated with fluorosis are needed, besides the efficient and continuous monitoring of fluoride exposure by various means, including most recently the biological markers for this ion, such as fingernail, that also reflects the level of chronic exposure, as long as an individual has a relatively constant intake of fluoride. The objective was to analyze the fluoride content of public water supply in different areas of a district, one served by deep wells and one by the water treatment station (WTS), and check if the levels of fluoride found reflect differences in the concentrations of fluoride observed in nails of 12 years old children and the prevalence of dental fluorosis. For this, 43 points were selected to collect water samples, covering the 17 existing sources of supply in the municipality. The study population consisted of 60 children, 12 years old, born and permanent residents in both areas of study, following the inclusion criteria, one with and one without too much fluoride excess in public water supply. Water samples collected monthly in points previously established, were analyzed in duplicate in the period from January to December of 2009, using an ion analyzer coupled to a specific electrode for fluoride. Sampling and analysis of fluoride in children nails were done, using the technique of facilitated microdiffusion HMDS. For verification of dental fluorosis we used the modified DEAN index .Of the total samples studied (n=512), 44% (n=224) had adequate levels and 56% (n =288) inadequate levels, and 10% (n=49) lower levels and 46% (n=239) higher... (Complete abstract click electronic access below)
Marques, Livia Bino. "Prevalência e autopercepção da fluorose dentária em crianças de 12 anos de idade do município de Birigüi-SP /." Araçatuba, 2008. http://hdl.handle.net/11449/95434.
Full textBanca: Renato Moreira Arcieri
Banca: José Roberto de Magalhães Bastos
Resumo: No Brasil, atualmente a fluorose dentária existente é classificada como leve e muito leve, porém com o uso do flúor nas suas diversas formas, há uma preocupação de que haja um aumento na prevalência da fluorose dentária. O objetivo deste estudo foi verificar a prevalência da fluorose dentária em crianças de 12 anos de idade e sua autopercepção. Foi realizado um estudo transversal, observacional e analítico com todas as crianças de 12 anos de idade das escolas públicas do município. Para análise da prevalência da fluorose dentária foi realizado exame clínico bucal, utilizando-se o Índice de Dean Modificado e, através de um questionário estruturado, foi possível avaliar a percepção da fluorose e sua influência na qualidade de vida destas crianças. Participaram do estudo 496 crianças do município de Birigüi-SP, sudeste do Brasil, os quais foram examinados por dois cirurgiões-dentistas devidamente calibrados, após obtenção de kappa>0,80. O teste estatístico utilizado foi o Qui-quadrado, com nível de significância de 5%. Foram examinadas 259 (52,2%) crianças do sexo feminino e 237 (47,8%) do sexo masculino. Do total, 320 crianças apresentaram algum sinal clínico de fluorose, sendo 220 (44,4%) com fluorose muito leve, 59 (11,9%) leve, 12 (2,4%) moderada, 1 (0,2%) severa e 28 (5,6%) apresentaram fluorose questionável, enquanto 176 (35,5%) não apresentaram fluorose. Das 292 crianças que apresentaram algum sinal clínico de fluorose, 117 (40,0%) observaram a presença de manchas em seus dentes e 175 (60,0%) não as perceberam, não havendo diferença significante quando se relacionou percepção da fluorose e gênero. Os resultados mostraram que apesar de a prevalência de fluorose ter sido alta, o grau predominante foi muito leve, não influenciando na percepção e qualidade de vida da população estudada.
Abstract: In Brazil as a whole, dental fluorosis is classified as light or very light, but with the use of fluoride in its various forms there is a concern that there is an increase in the prevalence of dental fluorosis. The aim of this study was to verify the prevalence of dental fluorosis in children aged 12 and its dental fluorosis self-perception. This study is observational, cross-sectional and analytical. A total of 496 children from the city of Birigüi, São Paulo, Southeastern Brazil, took part in study. The children were examined by two calibrated dentists, after a kappa>0,80. To assess the prevalence of fluorosis, clinical examinations were performed according to the methodology set forth by the 4 th edition of the WHO. A structured questionnaire was used to evaluate dental fluorosis selfperception. The statistical analysis used was the Chi-squared test with a 5% significance level. Of the total number of children examined, 259 (52.2%) were of the female gender and 237 (47.8%) were of the male gender. Of the total, 320 children presented some degree of fluorosis, 220 (44.4%) with very light fluorosis (Grade 2), 59 (11.9%) light, (Grade 3), 12 (2.4%) moderate (grade 4), 1 (0.2%) severe (grade 5), 28 (5.6%) showed questionable fluorosis (Grade 1) and 176 (35.5%) showed no fluorosis (grade 0). Of the 292 children who presented some degree of fluorosis, 117 (40.0%) reported the presence of stains on their teeth and 175 (60.0%) not to realized, with no significant difference when related perception of fluorosis and gender. The results showed that although the prevalence of fluorosis has been high, the level prevailing was very light, not influencing the perception and quality of life of the population.
Mestre
Thánh, Nguy~e̊n Thuy. "The relationship between fluoride concentration in drinking water with dental caries and fluorosis in Vietnamese children /." Title page, contents and abstract only, 2001. http://web4.library.adelaide.edu.au/theses/09DSM/09dsmn576.pdf.
Full textSoares, Angélica Cristiane Bulio 1982. "Relação de fatores socioeconômicos e comportamentais com prevalência e severidade de fluorose e cárie dentária." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289858.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: Este estudo objetivou estimar a prevalência e severidade da cárie e fluorose dentária aos 12 anos de idade na cidade de Piracicaba/SP e relacionar os dados encontrados com fatores sociais e comportamentais. Foi realizada amostragem probabilística aleatória simples para a seleção das escolas púbicas e dos voluntários. A amostra constituiu de 1104 escolares, provenientes de 21 escolas, que foram examinados de acordo com a metodologia proposta pela OMS (1997), por dois examinadores previamente treinados e calibrados. No presente estudo, foram analisadas as variáveis dependentes (CPO-D e Fluorose) e as variáveis independentes (Socioeconômicas e Comportamentais). A média do Índice CPO-D encontrada foi de 0,7 e a prevalência de cárie foi de 31,5%. O número total de dentes examinados foi de 27949 dos quais 97,22% (n=27173) estavam hígidos, 0,68% (n=190) estavam cariados, 0,06% (n=16) foram perdidos e 2,04% (n=570) estavam obturados revelando que apenas 2,7% do total de dentes examinados apresentou experiência de cárie (CPO-D>0). Somente 7,5% das crianças apresentou Fluorose dentária (T-F?1), valores considerados muito baixos segundo classificação da OMS. Considerando-se a série histórica desde 1973 quando se iniciou a fluoretação da água de abastecimento público em Piracicaba/SP até o ano de 2013, houve redução linear do índice CPO-D de 92% (R2=0,9895). A prevalência de Fluorose Dentária foi reduzida de forma não linear em 63% (R2=0,7883) no período de 1991 a 2013. A análise dos dados com emprego de Regressão logística Múltipla revelou que pertencer à classe socioeconômica mais alta, possuir alta renda per capta mensal, iniciar a escovação dentária precocemente quando da erupção dos primeiros dentes decíduos e realizar consultas preventivas com o cirurgião-dentista diminui pela metade as chances de apresentar cárie dentária. Concluiu-se que houve melhora significativa nos indicadores de saúde bucal nos últimos 40 anos no município de Piracicaba-SP. Cerca de 70% das crianças aos 12 anos de idade estavam livres de cárie e o índice de cárie dentária é 12 vezes menor se comparado ao encontrado no início da fluoretação da água de abastecimento público do município. A fluorose dentária, cuja prevalência e severidade encontradas são consideradas baixas, não se caracteriza como um problema de saúde pública no município estudado
Abstract: This study aimed to evaluate caries experience and fluorosis prevalence in 12-year-old schoolchildren from Piracicaba/SP and its relationship with socioeconomic and behavioral factors. Simple random probability sampling was conducted for selection of public schools. The sample consisted of 1104, from 21 schools, whose were examined according to the methodology proposed by WHO (1997), by two previously trained and calibrated examiners. Dependent variables (DMFT and T-F Indexes, caries and fluorosis experience) and independent variables (socioeconomic and behavioral) were analyzed. The mean of the DMFT index was found to be 0.7 and caries prevalence was 31.5 %. The total number of examined teeth was 27949 of which 97.22% (n=27173) were healthy, 0.68% (n = 190) were decayed, 0.06% (n = 16) were missing and 2.04 % (n=570) were filled revealing that only 2.7 % of the teeth examined had caries experience (DMFT>0). Only 7.5% of children had dental fluorosis (TF?1), values considered very low according to the WHO classification. In a historical series since 1973 when fluoridation of public water supply in Piracicaba/SP it began until the year 2013, there was 92% (R2=0.9895) of the linear reduction in the DMFT index. Prevalence of Dental Fluorosis was non-linearly reduced by 63% (R2=0.7883) between 1991-2013 period. Multiple logistic regression was performed which revealed that belong to higher socioeconomic class, have high monthly per capita income, starting tooth brushing since the eruption of the first deciduous teeth and perform preventive visits to dentist decreases by half the Odds Ratio of having tooth decay. It was concluded that there was significant improvement of the oral health indicators in the last 40 years in Piracicaba-SP. Around 70% of 12-year-old schoolchildren was caries free and DMFT Index was found 12 times lower than at the beginning of water fluoridation. Dental fluorosis prevalence and severity are found to be very low and was not considered as a public health problem in the city studied
Mestrado
Saude Coletiva
Mestra em Odontologia
Peixoto, Luciana Faria Sanglard. "\"Influência da fluorose dental na resistência de união de sistemas adesivos ao esmalte: análise em microscopia eletrônica de varredura e teste de microtração\"." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/23/23132/tde-15032007-101522/.
Full textThe purpose of this study was to observe the influence of dental fluorosis on the characteristics of the acid etch pattern and penetration of adhesive systems into enamel, by means of scanning electron microscopy (SEM), and on the bond strength of adhesive systems to enamel, through microtensile testing. In order to do so, 196 permanent posterior teeth were classified according to the Thylstrup and Fejerskov Index (TF= 0.1 and 4) and 69 of them were selected. Two-steps adhesive systems, one self-etching, Clearfil SE Bond®, and one total-etching, Adper Single Bond 2®, were used. For SEM analysis of the etch pattern and of the resin replicas, 27 premolars were sectioned mesiodistally and divided into 9 groups (n=3). The buccal surfaces were selected and longitudinally sectioned, using the half for each analysis. Specimens of the phosphoric acid gel at 37% (Magic acid®) group were etched using the two etching times (15 and 60 seconds), washed with air/water for 20 seconds and dried. Specimens of the Clearfil SE Bond® group received application of the material?s primer followed by a treatment to remove it. In order to obtain the resin replicas, the surfaces were outlined (2x2mm) using insulating tape, they were treated with each adhesive and underwent the building of a resin block (Filtek Z250TM ? 3M ESPE Brazil) of 2mm height. These specimens were immersed in 18% HCl for 48 hours and washed with distilled water under ultrasonication for 15 minutes. Microtensile testing was conducted on the intact buccal surface of 42 third molars that were divided into 7 groups and subdivided according to the degree of fluorosis and to the type of adhesive system, being that two etch times (15 and 60 seconds) were used in the TF4 group. After prophylaxis with pumice, washing and drying, the adhesive systems were applied and the composite resin blocks (Filtek Z250TM ? 3M ESPE Brazil) of 5x5mm were built upon a treated surface. After 24 hours, the blocks were sectioned in the X and Y directions perpendicular to the bond interface in order to obtain stick-shaped specimens with an area of approximately 1mm2. The sticks were submitted to tensile forces at a speed of 1mm/min and the values obtained underwent variance analysis (p<0.05). The etched surfaces, the replicas and fractured sticks were processed for analysis by SEM. There was a statistically significant difference between the adhesives (p = 0.008), being that Single Bond 2® presented the highest bond strength values. The severity of fluorosis did not influence the bond strength values, the etch pattern or the formation of resin tags. The increase in etch time, tested in TF4, influenced the bond strength, showing lower values for the 60 seconds time. In conclusion, the total-etch adhesive presented better results than the self-etch one in terms of bond strength, etch pattern and penetration of adhesive systems, regardless of the degree of fluorosis. The increase in etch time for the most severe fluorosis (TF4) cases impaired bond strength.
Barbosa, Tatiana de Freitas. "Fluorose dentária e concentração de flúor nas unhas de crianças residentes em diferentes áreas fluoretadas /." Araçatuba : [s.n.], 2010. http://hdl.handle.net/11449/95402.
Full textBanca: Doris Hissako Sumida
Banca: Cesar Augusto Casotti
Resumo: A fluoretação das águas de abastecimento público tem ocasionado significante redução na prevalência da cárie em diferentes populações, entretanto, a exposição ao flúor pelo uso de diferentes métodos tem trazido preocupações quanto ao aumento na prevalência de fluorose dentária. Por isso, estudos sobre os fatores de risco associados à fluorose são necessários, além do acompanhamento contínuo e efetivo da exposição ao flúor, por diferentes meios, incluindo mais recentemente os marcadores biológicos para esse íon, como a unha, que também reflete o nível de exposição crônica, desde que um indivíduo tenha uma ingestão de flúor relativamente constante. Assim, objetivou-se analisar o teor de fluoreto das águas de abastecimento público em diferentes áreas de um município, uma abastecida por poços profundos e outra pela estação de tratamento de água (ETA), e verificar se os teores de fluoretos encontrados refletem diferenças nas concentrações de flúor observadas nas unhas das crianças de 12 anos e na prevalência de fluorose dentária. Para isso, foram selecionados 43 pontos para coleta de amostras de água, abrangendo as 17 fontes de abastecimento existente no município. A população de estudo foi constituída por 60 crianças, de 12 anos de idade, nascidas e moradoras permanentes nas duas áreas de estudo, seguindo os critérios de inclusão, sendo uma com excesso e outra sem excesso de flúor nas águas de abastecimento público. As amostras de água, coletadas mensalmente nos pontos previamente estabelecidos, foram analisadas em duplicata no período de janeiro a dezembro de 2009, utilizando-se um analisador de íons acoplado a um eletrodo específico para flúor. Coletas e análise do flúor nas unhas das crianças foram realizadas, utilizando-se a técnica da microdifusão facilitada por HMDS. Para verificação da fluorose... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: The fluoridation of public water supply has caused a significant reduction in the prevalence of caries in different populations, however, exposure to fluoride by using different methods has brought concerns about the increasing prevalence of dental fluorosis. Therefore, studies on the risk factors associated with fluorosis are needed, besides the efficient and continuous monitoring of fluoride exposure by various means, including most recently the biological markers for this ion, such as fingernail, that also reflects the level of chronic exposure, as long as an individual has a relatively constant intake of fluoride. The objective was to analyze the fluoride content of public water supply in different areas of a district, one served by deep wells and one by the water treatment station (WTS), and check if the levels of fluoride found reflect differences in the concentrations of fluoride observed in nails of 12 years old children and the prevalence of dental fluorosis. For this, 43 points were selected to collect water samples, covering the 17 existing sources of supply in the municipality. The study population consisted of 60 children, 12 years old, born and permanent residents in both areas of study, following the inclusion criteria, one with and one without too much fluoride excess in public water supply. Water samples collected monthly in points previously established, were analyzed in duplicate in the period from January to December of 2009, using an ion analyzer coupled to a specific electrode for fluoride. Sampling and analysis of fluoride in children nails were done, using the technique of facilitated microdiffusion HMDS. For verification of dental fluorosis we used the modified DEAN index .Of the total samples studied (n=512), 44% (n=224) had adequate levels and 56% (n =288) inadequate levels, and 10% (n=49) lower levels and 46% (n=239) higher... (Complete abstract click electronic access below)
Mestre
Charone, Senda. "Análise proteômica da matriz do esmalte nos estágios de secreção e maturação em camundongos susceptíveis ou resistentes à fluorose dentária, expostos cronicamente ao fluoreto através da água de beber." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/25/25149/tde-04022014-084738/.
Full textThe mechanisms by which excessive ingestion of fluoride (F) during amelogenesis leads to fluorosis are still not precisely known. It has been shown that certain strains of mice are more susceptible to dental fluorosis than others, which turns these strains the ideal model for studying the molecular phenomena involved in this pathology. In the present study, we employed a proteomic approach to identify and evaluate changes in protein expression of secretory and maturation-stage enamel matrix in two strains of mice with different susceptibilities to dental fluorosis (A/J, susceptible and 129P3/J, resistant). Mice of both genders, from 129P3/J (n=200) and A/J (n=200) strains were divided into two groups for each strain. They received a low-F diet and drinking water containing 0 (control) or 50 mg/L F for 6 weeks. The F concentration was analyzed in plasma and enamel incisors. For proteomic analysis, the enamel matrix of secretory and maturation stages (incisors) was scrapped. For the extraction of enamel proteins, 1 ml of lysis buffer containing 7 M urea, 2 M thiourea, 4% CHAPS, 1% DTT, 0.5% ampholytes carriers pH 3-10 and a cocktail of protease inhibitors was added to 15 mg of enamel matrix powder. The enamel proteins extracted for each group were separated by two-dimensional electrophoresis and subsequently subjected to LC-ESIMS/ MS. The mean (± SD) F concentrations found in plasma were 0.023 ± 0.010 and 0.019 ±0.007 mg/L for the control group, A/J and 129P3/J strains, respectively; and 0.151 ± 0.043 and 0.252 ± 0.060 mg/L F for A/J and 129P3/J mice, respectively, treated with water containing 50 mg/L F. Two-way ANOVA revealed significant differences between treatments (F = 658.0, p <0.0001), but not between strains (F = 3.3 p = 0.075), with was significant interaction between these criteria (F = 16.50, p = 0.0002). The mean (± SD) F concentrations in the enamel of the incisors were 471.4 ± 215.8 mg/kg and 151.7 ± 58.8 mg/kg for the control group of 129P3/J and A/J strains, respectively; and 2711.2 ± 1019.2 mg/kg and 1756.9 ± 921.6 mg/kg for 129P3/J and A/J mice, respectively, treated with water containing 50 mg/L F. Two-way ANOVA detected significant differences between the strains (F=11.36, p=0.0016) and between treatments (F=103.50, p <0.0001), without significant interaction between these criteria (F=2.82, p=0.1004). The proteomic results revealed a reduction in the abundance of proteins in the maturation stage, as compared with the secretory stage. Treatment with F greatly increased the number of protein spots detected in both stages. This increase was greater for A/J mice, indicating an attempt to fight the deleterious effects of F and, thus, reinforcing the susceptibility of this strain to the effects of F. The identification of differentially expressed proteins revealed that both the strain and the treatment with F led to differential expression of proteins belonging to all functional categories.
Tiano, Ana Valéria Pagliari [UNESP]. "Concentração de flúor nas refeições e saúde bucal de crianças matriculadas em creches públicas." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/104197.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
A primeira infância é uma fase importante para instituição de hábitos alimentares saudáveis que irão influenciar a qualidade da saúde bucal dos futuros adultos. Nessa fase a ingestão excessiva de flúor pode resultar no desenvolvimento de fluorose dentária e o consumo descontrolado de açúcares aumenta o risco de desenvolvimento de cárie precoce de infância. Nesta pesquisa os objetivos foram estudar a ingestão de flúor por crianças com até 36 meses de vida, matriculadas em duas creches públicas de municípios com diferentes concentrações de flúor na água de abastecimento, no período de permanência na creche, e a prevalência de cárie e sua relação com algumas variáveis. Amostras das refeições servidas para 80 crianças foram coletadas durante uma semana. As concentrações de flúor das amostras de alimentos sólidos e leite foram determinadas por eletrodo específico (Orion 9409BN) combinado a eletrodo de referência (Accumet 1362079) após difusão facilitada por hexametildisiloxano. Os alimentos líquidos adicionados com igual volume de total ionic strenght adjustment buffer (TISAB II) foram analisados por um eletrodo combinado (Orion 9609BN). Os resultados foram comparados por meio do teste Mann-Whitney. Para se determinar a prevalência de lesões de cárie dentária com cavidade (LCC) e cárie precoce de infância (CPI), e a contribuição de algumas variáveis, um total de 68 crianças foram examinadas, utilizando-se os códigos e critérios preconizados pela OMS e pela ADA (American Dental Association). Os pais das crianças foram entrevistados. O teste exato de Fisher (p<0,05) foi aplicado. Quanto à concentração de flúor, as refeições continham em média 0,204 ± 0,179 e 0,322 ± 0,242 μgF/mL (p<0,05), respectivamente nos municípios com teor reduzido...
The early childhood is an important phase to establish healthy eating habits that will influence the quality of the oral health for the future adults. At this phase, excessive fluoride intake may result in dental fluorosis development and uncontrolled consumption of sugar increases the risk of developing early childhood caries. This survey aimed to study the fluoride ingestion by children up to 36 months of life, registered in two public daycare centers from municipalities with different fluoride concentrations in the water supply, during the period of stay in daycare, and the caries prevalence and its relationship with some variables. Samples of meals served to 80 children were collected during one week. The fluoride concentrations of solid foods and milk were determined by a specific electrode (Orion 9409BN) combined with a reference electrode (Accumet 1362079) after diffusion facilitated by hexamethyldisiloxane. The beverages added with an equal volume of total ionic strength adjustment buffer (TISAB II) were analyzed by a combined electrode (Orion 9609BN). The results were compared using the Mann-Whitney test. In order to determine the prevalence of cavitated caries lesions (CCL) and early childhood caries (ECC), and the contribution of some variables, a total of 68 children were clinically examined using the same codes and criteria established by the WHO (World Health Organization) and ADA (American Dental Association). Their parents were interviewed. Fisher’s exact test (p<0.05) was applied. Mean fluoride concentrations of the meals were of 0.204 ± 0.179 and 0.322 ± 0.242 μgF/mL (p<0.05) in the municipality with low fluoride content (LFC) and in the municipality with adequate fluoride content (AFC), respectively. Daily fluoride intake in the former was 0.013 ± 0.003 mg/kg body weight/day and 0.012 ± 0.001 mg/kg body weight/day in the... (Complete abstract click electronic access below)
Tiano, Ana Valéria Pagliari. "Concentração de flúor nas refeições e saúde bucal de crianças matriculadas em creches públicas /." Araçatuba : [s.n.], 2008. http://hdl.handle.net/11449/104197.
Full textBanca: Doris Hissako Sumida
Banca: Renato Moreira Arcieri
Banca: Marília Afonso Rabelo Buzalaf
Banca: Natanael Barbosa dos Santos
Resumo: A primeira infância é uma fase importante para instituição de hábitos alimentares saudáveis que irão influenciar a qualidade da saúde bucal dos futuros adultos. Nessa fase a ingestão excessiva de flúor pode resultar no desenvolvimento de fluorose dentária e o consumo descontrolado de açúcares aumenta o risco de desenvolvimento de cárie precoce de infância. Nesta pesquisa os objetivos foram estudar a ingestão de flúor por crianças com até 36 meses de vida, matriculadas em duas creches públicas de municípios com diferentes concentrações de flúor na água de abastecimento, no período de permanência na creche, e a prevalência de cárie e sua relação com algumas variáveis. Amostras das refeições servidas para 80 crianças foram coletadas durante uma semana. As concentrações de flúor das amostras de alimentos sólidos e leite foram determinadas por eletrodo específico (Orion 9409BN) combinado a eletrodo de referência (Accumet 1362079) após difusão facilitada por hexametildisiloxano. Os alimentos líquidos adicionados com igual volume de total ionic strenght adjustment buffer (TISAB II) foram analisados por um eletrodo combinado (Orion 9609BN). Os resultados foram comparados por meio do teste Mann-Whitney. Para se determinar a prevalência de lesões de cárie dentária com cavidade (LCC) e cárie precoce de infância (CPI), e a contribuição de algumas variáveis, um total de 68 crianças foram examinadas, utilizando-se os códigos e critérios preconizados pela OMS e pela ADA (American Dental Association). Os pais das crianças foram entrevistados. O teste exato de Fisher (p<0,05) foi aplicado. Quanto à concentração de flúor, as refeições continham em média 0,204 ± 0,179 e 0,322 ± 0,242 μgF/mL (p<0,05), respectivamente nos municípios com teor reduzido... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: The early childhood is an important phase to establish healthy eating habits that will influence the quality of the oral health for the future adults. At this phase, excessive fluoride intake may result in dental fluorosis development and uncontrolled consumption of sugar increases the risk of developing early childhood caries. This survey aimed to study the fluoride ingestion by children up to 36 months of life, registered in two public daycare centers from municipalities with different fluoride concentrations in the water supply, during the period of stay in daycare, and the caries prevalence and its relationship with some variables. Samples of meals served to 80 children were collected during one week. The fluoride concentrations of solid foods and milk were determined by a specific electrode (Orion 9409BN) combined with a reference electrode (Accumet 1362079) after diffusion facilitated by hexamethyldisiloxane. The beverages added with an equal volume of total ionic strength adjustment buffer (TISAB II) were analyzed by a combined electrode (Orion 9609BN). The results were compared using the Mann-Whitney test. In order to determine the prevalence of cavitated caries lesions (CCL) and early childhood caries (ECC), and the contribution of some variables, a total of 68 children were clinically examined using the same codes and criteria established by the WHO (World Health Organization) and ADA (American Dental Association). Their parents were interviewed. Fisher's exact test (p<0.05) was applied. Mean fluoride concentrations of the meals were of 0.204 ± 0.179 and 0.322 ± 0.242 μgF/mL (p<0.05) in the municipality with low fluoride content (LFC) and in the municipality with adequate fluoride content (AFC), respectively. Daily fluoride intake in the former was 0.013 ± 0.003 mg/kg body weight/day and 0.012 ± 0.001 mg/kg body weight/day in the... (Complete abstract click electronic access below)
Doutor
Camara, Danielle Mendes da [UNESP]. "Avaliação in vitro da eficácia de dentifrícios de baixa concentração de fluoreto suplementados com hexametafosfato sobre o processo de desmineralização do esmalte." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/95446.
Full textFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Formulações de dentifrícios com concentrações reduzidas de fluoreto (F) têm sido estudadas para diminuir o risco de fluorose dentária. O objetivo do trabalho foi avaliar a eficácia de dentifrícios com concentrações reduzidas de F (250 μgF/g), suplementados com hexametafosfato (HMP) sobre a desmineralização do esmalte de dente bovino. Blocos de esmalte foram submetidos a repetidas ciclagens de pH alternadas com tratamentos (2x/dia) com dentifrícios sem F contendo HMP nas concentrações de 0, 0,25, 0,5, 1,0, 2,0 e 3,0%, dentifrícios com 250 gF/g suplementados com HMP nas mesmas concentrações, placebo (sem F e HMP), um com 500 μgF/g, outro com 1100 μgF/g e um comercial (Crest, de 1100 gF/g). Após as ciclagens determinou-se a dureza de superfície final (SHf), perda integrada de dureza de subsuperfície (ΔKHN) e o conteúdo de F no esmalte. Os resultados foram submetidos à ANOVA e teste de Bonferroni (p<0.05). O grupo 250 gF/g com 0,5% de HMP apresentou maior valor de SHf, e menor ΔKHN, seguido do grupo de 250 gF/g com 1,0% de HMP que ficou semelhante ao 1100 gF/g e Crest. HMP não interferiu na incorporação de F pelo esmalte em concentrações menores que 3%. Além disso, a adição de 0,5% de HMP a um dentifrício sem F causou um aumento de SHf e uma redução de ΔKHN em comparação ao placebo. Conclui-se que é possível reduzir a concentração de F a 250 gF/g e se obter uma ação comparável de um dentifrício comercial sobre a desmineralização do esmalte bovino através da suplementação com hexametafosfato nas concentrações de 0,5 e 1%
Formulations of dentifrices with reduced concentrations of fluoride (F) have been studied to decrease the risk of dental fluorosis. The aim of this study was to evaluate the efficacy of dentifrices with low concentration of F (250 μgF/g), supplemented with hexametaphosphate (HMP) on the demineralization of bovine tooth enamel. Blocks of enamel were submitted to repeated pH cyclings alternated with treatments (2x/day) with dentifrices without F or containing 250 gF/g supplemented with HMP at concentrations of 0, 0,25, 0,5 1,0, 2,0 e 3,0%, dentifrices supplemented with HMP the same concentrations, placebo (without F and HMP), a dentifrice with 500 μgF/g, another with 1100 μgF/g and a commercial dentifrice (Crest, 1100 gF/g). After cycling, the following analysis were conducted: final surface hardness (SHf), subsurface hardness integrated loss (ΔKHN) and the content of F on enamel. The results were submitted to variance analysis and Bonferroni test (p<0.05). The group of 250 gF/g with 0,5% HMP showed the highest SHf value and the lowest ΔKHN value, followed by the group supplemented with 1,0% HMP which was similar to 1100 gF/g and Crest groups. HMP did not impair the uptake of F by enamel at concentrations lower than3%. Furthermore the addition of 0,5% HMP to a non fluoridated dentifrice caused a rise on SHf and a decrease on ΔKHN in comparison to placebo. It was concluded that it is possible to reduce the concentration of F to 250 μgF/g and obtain an action similar to a commercial dentifrice on the demineralization of enamel by supplementation with hexametaphosphate in concentrations of 0.5 and 1%
Carvalho, Cristiane Alves Paz de. "Alimentos industrializados à base de soja e fluorose em dentes decíduos." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/25/25141/tde-02042009-154225/.
Full textDespite of the great use of manufactured soy food, scientific reports are not conclusive about the possibility of dental fluorosis in primary dentition caused by fluoride contained in these kind of food. Soy-based food is indicated especially in cases of lactose intolerance. The aims of this study were: 1) to identify the most recommended manufactured soy food for children, by Pediatricians and Nutritionists; 2) to determine the fluoride concentrations in these soy food; 3) to evaluate the prevalence of dental fluorosis in the primary dentition of 4-6-year-old children. Stage 1. The sample was composed of 20 Pediatricians and 20 Nutritionists from Bauru-SP, who answered objective-descriptive questions, about the most indicated soy food for children. Stage 2. The top 10 products were analyzed with ion-specific electrode (Orion 9409), after HMDS facilitated-diffusion. Stage 3. A dental fluorosis survey was performed at six schools in Bauru-SP with three hundred and fifteen children from 4 to 6 years old. In this group 26 children with lactose intolerance were identified. Their parents answered a questionnaire related to the child and his/her familys profile which allowed identifying the use of soy food. Deans index was used to verify the prevalence and severity of dental fluorosis. Data were statistically analyzed by chi-square and multivariate logistic regression tests. Fluoride concentrations ranged between 0.03 and 0.50 µg F/mL. It was observed statistical significant difference in the fluoride concentrations among different lots of the same brand in 6 commercial analyzed. Dental fluorosis was detected in 10% of the children, with very mild and mild degrees. The prevalence of dental fluorosis was higher in private schools children (p=0.030). Dental fluorosis in primary dentition was associated with lactose intolerance, however, did not showed statistical significance with the use of manufactured soy food.
Santos, Natanael Barbosa dos [UNESP]. "Avaliação do risco de desenvolvimento de fluorose dentária através da ingestão total de flúor, em crianças de 18 a 36 meses, no município de Penedo - AL." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/104198.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
A utilização do flúor como medida preventiva e terapêutica tem mudado o perfil da doença cárie dentária, no entanto o aumento da exposição a múltiplas fontes de flúor tem proporcionado uma preocupação constante sobre o aumento da prevalência e severidade da fluorose dentária. O objetivo da presente pesquisa foi analisar a ingestão total de flúor e avaliar o risco de desenvolvimento de fluorose dentária. A amostra foi composta por 55 crianças, de 18 a 36 meses de idade, que freqüentavam as creches (n=25) municipais e outras que residiam em um bairro (n=30) do município de Penedo-Al, tendo o mesmo a água de abastecimento público fluoretada. Foi aplicado, aos pais e/ou responsáveis, um questionário sobre os hábitos de higiene bucal das crianças. Para a análise da ingestão de flúor na dieta, a metodologia aplicada foi a técnica de duplicata da dieta sólida e líquida, durante dois dias consecutivos, enquanto que a ingestão de flúor pelo uso de dentifrício fluoretado foi estimada através da subtração do conteúdo de flúor contido na escova pelo conteúdo de flúor expectorado pela criança. Também foi analisada a regularidade da concentração de flúor adicionada à água da rede pública do referido município. Não existiu diferença significativa em função da ingestão total de flúor entre as crianças da creche e do bairro, respectivamente (lDP) 0,11l0,0463 e 0,09l0,0424 mgF/Kg peso/dia (Teste-t; p>0,05). A quantidade de flúor ingerida na dieta não ultrapassou a dose de risco para o desenvolvimento de fluorose preconizada de 0,05 a 0,07 mgF/Kg peso/dia. A ingestão de flúor através do dentifrício correspondeu a 64,5% do total ingerido nas creches. Fatores como: freqüência de escovação, quantidade de dentifrício colocado na escova, níveis de expectoração e a concentração de flúor solúvel do dentifrício utilizado tiveram correlação...
The use of fluoride as a preventive and as a therapeutic measure has changed the dental caries profile. However, exposure to multiple sources of fluoride and an increase in its consumption has brought about a greater and ongoing concern regarding the increase in the prevalence and incidence of dental fluorosis. The objective of this study were to assess the total fluoride ingestion by small children and the subsequent risk of developing dental fluorosis. Fifty five (55) children aged 18 to 36 months of age took past in this study. From those, 25 were enrolled in a nursery school and 30 were lifelong residents of suburbs of the city of Penedo - AL, Brazil. All children drank tap water from the public water system of Penedo, which is artificially fluoridated. All parents answered a questionnaire about the oral hygiene habits of their children. During two consecutive days all food and water ingested by each child was collected using the duplicated-plate technique. Fluoride ingestion from dentifrice was estimated by subtracting of the fluoride content in the toothbrush plus the child expectorated toothpaste-saliva slurry from the total fluoride contained in amount of toothpaste placed in the toothbrush. Fluoride in the public water system was also analyzed. There was no significant difference in total fluoride ingestion between nursery-enrolled and non-nursery-enrolled children. The meanlSD total fluoride ingestion in both groups were 0.11l0.0463 and 0.09l0.0424 mgF/Kg body weight/day, respectively (t-Test; p>0,05). Fluoride ingestion from diet did not reach the theoretical dose of 0.05-0.07 mgF/Kg body weight/day which is used to determine the risk for dental fluorosis. Fluoride ingestion from dentifrice amounted to 64.5% of total fluoride ingestion by nursery children. Factors such: toothbrushing frequency, amount of toothpaste placed in the toothbrush, quantity expectorated and ...(Complete abstract click electronic access below)
Ada, Ogbudu Gabriel. "Cultural and Environmental Determinants of Dental Discoloration Among School-Aged Children in Nigeria." ScholarWorks, 2018. https://scholarworks.waldenu.edu/dissertations/4770.
Full textKavand, Golnaz. "Assessment of adolescents' and their parents' dental esthetic perceptions: a longitudinal study." Thesis, University of Iowa, 2012. https://ir.uiowa.edu/etd/3480.
Full textEbot, Etta Barnabas. "Risk factors and knowledge of dental fluorosis in three communities in the far north region of Cameroon." University of the Western Cape, 2020. http://hdl.handle.net/11394/7529.
Full textBACKGROUND: Fluorine is an abundant trace element in the Earth’s crust. The presence of fluorine in bedrocks is the primary source fluoride in ground water, though fluoride occurrence varies with the different rock types. High concentrations of fluoride ions are found in regions of volcanic activities. Volcanoes are the main persistent natural source of fluoride in ground water and in the atmosphere. The occurrence of high concentrations of fluoride in ground water has been reported worldwide. Dental fluorosis is a developmental disturbance of enamel that results from ingestion of high amounts of fluoride during tooth mineralization. Consumption of untreated fluoridated ground water remains the main cause of dental fluorosis in rural settlements. AIM: To establish the risk factors and knowledge of dental fluorosis in three communities of the Far North Region of Cameroon. METHODOLOGY: This study was descriptive and cross-sectional study with an analytic component and was conducted in three communities in Far North Region of Cameroon. The study population was a convenience sample irrespective of age, but who must have been living in the selected study sites for a minimum of 6 to 8 years. Structured questionnaires were administered to elicit socio-demographic characteristics, perceptions dental fluorosis and oral health practices. Oral examination was conducted to determine the extent of dental fluorosis that was scored according to the Thylstrup and Fejerskov index. Participants declared their water sources and water samples were obtained from these sources. Samples of commercial bottled mineral water was purchased from various local outlets. These samples were sent to a certified laboratory for fluoride analysis and are reported in milligrams of fluoride per litre.
Carvalho, Juliane Guimarães de. "Suscetibilidade genética para fluorose dentária: um estudo metabólico e proteômico com diferentes linhagens de camundongos." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/25/25142/tde-24032010-155218/.
Full textDental fluorosis occurs during tooth formation when excessive doses of fluoride (F) are ingested. The mechanisms that underlie the pathogenesis of dental fluorosis are not known so far. The influence of genetic factors has been considered in individual susceptibility/resistance to develop fluorosis. Two inbred mice strains (A/J and 129P3/J) have been reported to have different susceptibilities to dental fluorosis. They were used in the present study to determine if the susceptibility to dental fluorosis can be explained by alterations in F metabolism and to evaluate if there is difference in the profile of protein expression in kidney and urine of these animals. For this, a metabolic study was conducted with 18 A/J (susceptible) and 18 129P3/J (resistant) weanling mice. Each strain was divided into 3 groups, with differed according to the F concentration given in the drinking water (0, 10 and 50 ppm F). Since a pilot study showed that the A/J mice drank a higher volume of water when compared with the 129P3/J, the F concentration in the water given to the A/J mice was weekly adjusted in order to provide similar F intakes for both strains. The mice were housed in metabolic cages (n=2/cage) for 7 weeks, with free access to water and low-F diet (0.95 ppm). F intake and excretion were calculated, as well as plasma, femur and kidney F levels. The degree of dental fluorosis was assessed using QLF and clinical examination. Renal and urinary proteome profiles were examined using 2D-PAGE and coomassie brilliant blue staining. Data were tested for significant differences by 2-way repeated-measures ANOVA (p<0.05). The gels images and statistical differences (ANOVA, p <0.05) were analyzed by the Image Master Platinum 7.0 software. Significantly higher QLF scores were observed for the A/J mice submitted to 50 ppm F. The total F intake did not significantly differ between the strains. The total F excretion was significantly higher for the A/J mice, due to the higher urinary F excretion. The two strains did not differ in respect to F absorption, but the 129P3/J mice retained significantly higher amounts of F, which was consistent with their higher femur F levels. Plasma F levels, however, did not significantly differ between the strains. For kidney, quantitative intensity analysis detected, between strains A/J and 129P3/J, 122, 126 e 134 spots differentially expressed in the control group, in the group receiving low and high F concentrations, respectively. For urine, 84 spots differentially expressed were detected for control group, 68 for the group receiving low F concentration and 66 for the group receiving high F concentration. Data showed that intrinsic differences occur in the metabolism of F and profile of protein expression between these strains and that these profiles can be altered in the presence of F.
Frossard, Wanda Terezinha Garbelini [UNESP]. "Ocorrência de opacidade difusa em molares decíduos como fator preditivo no diagnóstico de fluorose dentária em dentes permanentes." Universidade Estadual Paulista (UNESP), 2003. http://hdl.handle.net/11449/104255.
Full textO objetivo do presente estudo foi identificar fatores associados à fluorose dentária, em uma localidade com níveis de concentração de flúor variando de 0,07 a 2,06 mgL/F. Das 727 crianças, de 6 a 10 anos de idade, matriculadas na rede de ensino público do município de Itambaracá, PR, no ano de 2001, examinaram-se 602 e, após computadas as perdas e as exclusões, 353 permaneceram como população de estudo. Os pais ou responsáveis responderam um formulário sobre a história médica e gestacional da criança, dieta láctea e fontes de exposição ao flúor no primeiro ano de vida. Os exames clínicos foram realizados nas próprias escolas, por dois cirurgiões dentistas previamente treinados e calibrados, sendo que um avaliou as opacidades difusas nos molares decíduos, através do Índice DDE e outro, a fluorose dentária na dentição permanente, pelo Índice de Dean. A análise bivariada mostrou haver relação entre a patologia e: os níveis de flúor no município, uso de dentifrício fluorado e a presença de doenças no primeiro ano de vida. Na análise multivariada foram considerados como fatores de risco: a presença de doenças e o uso de leite em pó diluído em água fluorada, no primeiro ano de vida, além do fator mais fortemente associado à fluorose, a presença de opacidades difusas nos molares decíduos (odds ratio = 22,97). A obtenção criteriosa de informações sobre a história médica e o padrão de consumo de leite, associados ao exame clínico dos molares decíduos, tão logo erupcionem, podem contribuir na identificação das crianças com maiores possibilidades de desenvolver a fluorose dentária, na dentição permanente.
The aim of this study was to identify association factors of dental fluorosis in a community where the amount of fluoride in drinking water vary from 0,07 to 2,06ppmF. Among the 727 children aged 6 to 10 year-old regularly enrolled in public schools at Itambaracá-PR in 2001, 602 were examined, and after excluding criteria and loses were computed, 353 remained as study population. A questionnaire about gestational and medical histories, pattern of milk consumption and fluoride exposition in the first year of life was answered by the child's parents. Clinical examination was performed at the schools, by two previously trained and calibrated dentists. One evaluated enamel opacities in deciduous teeth through DDE index, and the other dental fluorosis in permanent teeth by Dean's index. Bivariate analysis displayed a relationship of dental fluorosis and place of residence according to the amount of fluoride in drinking water, use of fluorided dentifrice and systemic diseases in the first year of life. In multivariable analysis the observed risk factors were the use of powered milk reconstituted with fluorided water, and systemic diseases, both in the first year of life, and the most strongly associated one was the presence of diffused opacities in primary molars (odds ratio=22,97). To achieve standard information about medical history and pattern of milk consumption and a clinical examination of the deciduous molars as soon as they erupt can contribute in identifying children that have larger possibilities of developing dental fluorosis in permanent teeth.
Sousa, Emerson Tavares de. "Biomonitoramento da ingestão de fluoretos em pré-escolares residentes de zona rural com teores residuais de flúor na água." Universidade Federal da Paraíba, 2016. http://tede.biblioteca.ufpb.br:8080/handle/tede/8862.
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This work aimed biomonitoring intake of fluoride in preschool rural residents with residual fluoride levels and non-fluoridated city, estimating the risk of fluorosis and correlating exposure biomarkers. Thirty preschoolers 24-71 months, divided into two groups, one with residents of a rural area with a high concentration of fluoride in the water supply (G1-Brejo das Freiras/ São João do Rio do Peixe-PB) and another representing a city without fluoridation (G2-João Pessoa-PB). The volunteers were monitored for intake (water, solid and liquid diet, and dentifrice) and fluorine retention. The fluorine excretion in 24 hours, and samples fingernails served as biomarker. Comparative analysis, regression and correlation were significant when p ≤ 0.05. The average fluoride intake was 0.18 ± 0.14 (G1) and 0.05 ± 0.04 (G2) mg/kg/day, p <0.05. In G1 there were water contribution in daily intake (0.07 ± 0.1 mg/kg/day), as opposed to G2 determined according to the dentifrice (0.04 ± 0.04 mg/kg/day). Retention was directly proportional to the concentration of fluoride in the water in G1, following the trend of Urinary Excretion Fraction (FUFE), similar in both groups. A correlation between fluoride in the fingernails and toes, and the nails of the feet more sensitive to differences between the groups. It was concluded that there is a high intake of fluoride in the region with residual fluoride levels correlated with sensitivity of biomarkers.
Esse trabalho visa biomonitorar a ingestão de fluoretos em pré-escolares residentes de zona rural com teores residuais de flúor e em cidade não fluoretada, estimando o risco de fluorose e correlacionando à marcadores de exposição. Trinta pré-escolares de 24-71 meses, divididos em dois grupos, um com residentes de uma zona rural com alta concentração de fluoreto na água de abastecimento (G1-Brejo das Freiras/ São João do Rio do Peixe-PB) e outro representando uma cidade sem fluoretação (G2-João Pessoa-PB). Os voluntários foram monitorados quanto à ingestão (água, dieta sólida e líquida, e dentifrício) e retenção de flúor. A excreção de flúor em 24 horas, assim como amostras de unhas serviram como biomarcadores. Análises comparativas, de regressão e correlação foram significantes quando p≤0,05. A ingestão média de fluoreto foi 0,18 ± 0,14 (G1) e 0,05 ± 0,04 (G2) mg/kg/dia, p<0,05. Em G1 há maior contribuição da água na ingestão diária (0,1 ± 0,07 mg/kg/dia), ao contrario de G2, determinado pelo dentifrício (0,04 ± 0,04 mg/kg/dia). A retenção foi diretamente proporcional à concentração de flúor na água em G1, seguindo a tendência da Fração Urinária de Excreção (FUFE), similar nos dois grupos. Observou-se correlação entre o flúor nas unhas das mãos e dos pés, sendo as unhas dos pés mais sensíveis às diferenças entre os grupos. Concluiu-se que há uma elevada ingestão de fluoretos em região com teores residuais de flúor correlacionadas à sensibilidade dos biomarcadores.
Silva, Diana Sofia Almeida Ribeiro da. "Quantificação do dentífrico fluoretado utilizado por crianças na escovagem dentária." Master's thesis, [s.n.], 2015. http://hdl.handle.net/10284/5122.
Full textYounan, Sidora, and David Amanda Zidane. "Samband mellan fluoridkoncentration i dricksvatten och dental fluoros i Sydafrika : En allmän litteraturstudie." Thesis, Jönköping University, Hälsohögskolan, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-50607.
Full textBackground: Teeth mineralization disorder can either be genetic or caused by internal and/or external factors. The various factors cause either a local or a general enamel mineralization disorder. One of the factors is a chemical in the form of fluoride. Fluoride levels in water between 1.5 - 3.0 mg/l can cause dental fluorosis, making teeth delicate and very brittle. High fluorine levels have been detected in drinking water, even well above the WHO recommended 1.0 mg/l, in several different countries, including South Africa. Aim: To study the relationship between fluoride concentration in drinking water and dental fluorosis in South Africa in children. Question: How do high respective low fluoride concentrations affect the incidence of dental fluorosis in South Africa? Method: The DOSS, MEDLINE and CINHAL databases were used to carry out the literature study. A total of 10 articles were included, which were then quality checked inspired by Forsberg & Wengström's quality review template. Results: Children living in a low fluoride range of 0.19 mg/l, where 49% had dental fluorosis and 38% had no dental fluorosis. In areas with high fluoride concentrations up to, 3.00 mg/l, 96% of children had dental fluorosis, of which 30% had grade 5 which is severe dental fluorosis. Conclusion: The higher the fluoride concentrations, the greater the number of dental fluorosis cases.
Levy, Flávia Mauad. "Avaliação da ingestão de flúor de crianças brasileiras de 2 a 6 anos de idade." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/25/25142/tde-14042009-163725/.
Full textThis study compared the fluoride (F) intake of 2-6-year-old children, living in fluoridated (Bauru-SP, 0,6-0,8 ppm F) and non-fluoridated (Pirajuí-SP) areas. The methods used were the duplicate diet associated to simulated toothbrushing and the semi-quantitative food frequency questionnaire (sqFFQ) associated to a questionnaire for estimation of F intake from dentifrice. Initially, the sqFFQ was applied to 398 children living in Pirajuí. In another phase, subsamples of 25 children living in Bauru and 24 living in Pirajuí were evaluated. In these subsamples the F intake from diet was determined using the sqFFQ as well as the duplicate diet method, considering the different constituents of the diet (water, other liquids and solids). The F intake from the dentifrice was determined using the questionnaire for estimation of F intake, as well as simulated toothbrushing. F was analyzed with the electrode, following hexamethyldisiloxanefacilitated diffusion or after buffering with TISAB. For statistical analysis, the GraphPad InStat software was used. The applies tests were paired and unpaired t tests, paired Wilcoxon test, Mann-Whitney test and correlation analysis (p<0.05). The sqFFQ, when applied to the sample constituted by 398 children living in Pirajuí, found values of total F intake significantly lower when compared to previous data reported by Miziara (2006) for children living in Bauru. In the subsample of evaluated children, the mean (±SD, mg) F intakes estimated by the sqFFQ and duplicate diet (total diet) were 0.420±0.087 and 0.805±0.190 (Bauru) and 0.227±0.072 and 0.144±0.050 (Pirajuí), respectively. The difference between the methods was significant for both municipalities. For both municipalities, a significant correlation between the methods was obtained in the case of solids only. Considering the estimation of F intake from dentifrice obtained by the application of the questionnaire and simulated toothbrushing, the compiled (Bauru plus Pirajuí) means (±SD, mg) were 0.611±0.452 and 0.784±0.737, respectively. The difference as well as the correlation between the methods were not significant. By using the questionnaires, it was possible to detect a significant difference in the total F intake between Bauru and Pirajuí. However, the same did not occur when using the method of duplicate diet associated with simulated toothbrushing. Due to the results obtained, it seems that the sqFFQ associated to a questionnaire for estimation of F intake from dentifrice has a good potential for use at epidemiological level in order to evaluate the risk of groups of children to dental fluorosis. Some parameters of the sqFFQ need to be better addressed for a more precise analysis, mainly with respect to the frequency of water and other liquids intake. In addition, the applicability of these questionnaires at the individual level for the detection of risk to dental fluorosis requires further studies.
Pagliari, Ana Valéria. "Análise da concentração de íon flúor em leite em pó /." Araçatuba : [s.n.], 2004. http://hdl.handle.net/11449/95420.
Full textResumo: O leite materno é, indiscutivelmente, o alimento ideal para os primeiros meses de vida da criança, mas existem situações que impossibilitam ou dificultam seu consumo. Nestes casos, fórmulas infantis, leite de vaca integral diluído e leite de soja podem ser oferecidos. Este trabalho pretende avaliar o leite como contribuinte para a ingestão diária de flúor em crianças e como fator de risco para o desenvolvimento de fluorose dentária. A primeira parte procura estimar esta contribuição, partindo da concentração de flúor no leite humano, leite de vaca, leite em pó e fórmulas infantis, encontrada em pesquisas publicadas. Os resultados indicam que os leites materno e de vaca in natura não oferecem risco ao desenvolvimento de lesões de fluorose dentária esteticamente inaceitáveis em dentes decíduos ou permanentes, o mesmo ocorrendo para a ingestão de leite em pó quanto aos dentes permanentes. Já as fórmulas infantis e o leite em pó, comercializados no Brasil, preparados em água com concentração ótima de flúor (0,7 mg/L), podem contribuir com uma ingestão diária de flúor acima do limite considerado seguro, podendo provocar o aparecimento de lesões de fluorose em dentes decíduos. A segunda parte deste trabalho teve como objetivos determinar os teores de flúor de fórmulas infantis (n=7), leites (n=10) e leites de soja (n=3), em pó, produzidos em território nacional e adquiridos em Araçatuba-SP e avaliar a possibilidade de desenvolvimento de fluorose dentária, esteticamente inaceitável, com o consumo destes produtos. As amostras de pó foram reconstituídas em água deionizada e analisadas em duplicata pelo método eletrodo específico, após difusão facilitada por hexametildisiloxano... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Mother's milk is, unquestionably, the ideal food for children's first months of life, however, there are situations that make its consumption impossible. In these cases, infant formulas, cow's diluted whole milk and soy-milk can be offered. This paper intends to evaluate milk as a contributor for children's daily fluoride ingestion and as a risk factor to develop dental fluorosis. The first part estimates this contribution by the fluoride concentration of human milk, in natura cow's milk, powder-milk, infant formulas obtained from publications specialized on the subject. The results indicate that that human milk and in natura cow's milk do not offer risk to the development of esthetically unacceptable lesions of dental fluorosis in deciduous or permanent teeth, the same occurring with powder-milk ingestion for the permanent teeth. The infant formulas and powder-milk commercialized in Brazil, prepared in water with optimal fluoride concentration (0.7 mg F/L) can contribute to daily fluoride ingestion above the limit considered as safe for the development of fluorosis in deciduous teeth. The second part of this paper had the purpose to determine the fluoride content in infant formulas (n=7), powder-milk (n=10) and soy-milk (n=3) produced in the national territory and acquired in Araçatuba - SP, and evaluate the possibility to develop esthetically unacceptable dental fluorosis by consuming these products. The powder samples were reconstituted in deionized water and doublechecked through the potentiometrical method after hexametyldisiloxane facilitated diffusion... (Complete abstract, click electronic access below)
Mestre
Vilhena, Fabiano Vieira. "Eficácia de um novo dentifrício líquido com baixa concentração de flúor e pH acidulado na prevenção de lesões cariosas: estudo clínico randomizado." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/25/25142/tde-14042009-112557/.
Full textThe purpose of this study was to evaluate the efficacy of a liquid dentifrice with reduced pH and low fluoride concentration for the prevention of new carious lesions and fluoride uptake in dental biofilm and nails. One thousand four hundred and two 4-year-old schoolchildren with caries experience were randomly allocated to 4 groups, differing according to the dentifrice used for 20 months: G1liquid dentifrice (1,100 ppmF, NaF, pH 4.5, n=345), G2-liquid dentifrice (1,100 ppmF, NaF, pH 7.0, n=343), G3-liquid dentifrice (550 ppmF, NaF, pH 4.5, n=354), G4-commercial toothpaste (control-1,100 ppmF,NaF, pH 7.0, n=360). The liquid dentifrices and toothpaste were applied to the toothbrush using the drop and transverse techniques, respectively. Caries progression (dmfs) was evaluated at baseline and after 12 and 20 months of continuous use of the dentifrices. A subsample of each group participated in the second section. Fingernails and toenails were clipped in two separate occasions, after being allowed to grow for 14 days (n=15 for each group). Plaque samples were collected 1 hr after the last use of the respective dentifrices (n=21 for each group). Plaque and nails [F]s were analyzed with the electrode, after HMDS-facilitated diffusion. dmfs data were analyzed by Kruskal-Wallis test (p<0,05).Plaque data were tested by ANOVA and Tukey\'s test, while nails data were analyzed by two-way repeated-measures ANOVA and Bonferroni\'s test (p<0.05). Results: 1,053 children were examined after 20 months (271, 262, 250 and 270 children for G1, G2, G3 and G4, respectively). Mean dmfs(±SD) at baseline, after 20 months and % increment were, respectively: G1) 5.07±5.11, 7.13±6.53 and 30.8%; G2) 4.80±5.00, 6.88±6.78 and 31.9%; G3) 5.24±5.37, 7.29±7.27 and 30.5%; G4) 5.05±4.89, 7.13±6.35 and 31.1%. No significant differences were found among the groups for all the variables tested. Mean (±se, unit mmol/Kg dry weight) plaque [F]s were 3.091±0.984a, 1.667±0.410a, 1.448±0.303a 0.405±0.103b for G1, G2, G3 and G4, respectively. Fingernails [F]s were significantly higher when compared to toenails. The highest [F]s were found for that significantly differed from the experimental liquid dentifrices, except for A (toenails only). The lowest [F]s were found for C, which significantly differed from all the other dentifrices. The experimental 1,100 ppm F dentifrices led to intermediary [F]s in nails and did not significantly differ from each other. Conclusions: The results suggest that the low-fluoride (550 ppm F) acidic dentifrice has the same anticaries effectiveness as the conventional 1,100 ppm F dentifrices. The reduction of the dentifrice pH increases the F uptake in dental plaque and does not affect nails [F]s. Thus, the use of low-fluoride acidic dentifrices seems to be a good alternative to prevent dental caries and reduce the F intake from dentifrice in small children.
Zina, Lívia Guimarães [UNESP]. "Evidências científicas da associação entre fórmula infantil, fluorose e cárie dentária." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/104203.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
O consumo de fórmula infantil durante a primeira infância tem sido considerado um fator de risco em potencial para a fluorose e cárie dentária. O objetivo desta tese de doutorado foi avaliar, por meio de duas revisões sistemáticas e meta-análises, a relação entre o consumo de fórmula infantil e o risco de fluorose e cárie dentária. Para isso, foram consultadas oito bases de dados e listas de referências de artigos. A análise da relevância e abstração de dados foram realizadas em duplicata e independentemente por dois revisores. A qualidade dos estudos foi avaliada e os odds ratios, quando obtidos, foram combinados utilizando-se modelos de efeito aleatório. Na revisão sobre fluorose dentária, 41 de 969 publicações potencialmente elegíveis avaliaram o impacto da fórmula infantil no risco de fluorose dentária. Quatorze publicações não apresentaram os achados nos resultados. As restantes 27 publicações relataram os resultados em 19 estudos observacionais. Dezessete destes 19 estudos apresentaram odds ratio (OR) e entre eles o consumo de fórmula infantil esteve associado com uma maior prevalência de fluorose dentária na dentição permanente (OR global=1,8; intervalo de confiança de 95%=1,4-2,3). Observou-se significativa heterogeneidade entre os estudos (I-quadrado=66%) e evidência de viés de publicação (p=0,002). A metarregressão indicou que o odds ratio associado à fórmula infantil com a fluorose dentária aumentou em 5% para cada aumento de 0,1 ppm nos níveis de flúor da água de abastecimento (OR=1,05; intervalo de confiança de 95%=1,02-1,09). Na revisão sobre cárie dentária, 31 de 1.695 publicações elegíveis avaliaram o impacto da fórmula infantil no risco de cárie dentária. Duas publicações não apresentaram os achados nos resultados. As restantes 29 publicações relataram os resultados em 26 estudos...
Infant formula consumption during childhood has been considered a potential risk factor for enamel fluorosis and dental caries. The aim of this doctorate thesis was to evaluate, through two systematic reviews and meta-analysis, the relationship between infant formula consumption and the risk of enamel fluorosis and dental caries. Eight databases and reference list of articles were searched. Assessment of relevance and data abstraction were conducted in duplicate and independently by two reviewers. Study quality was assessed and odds ratios, when obtainable, were combined using a random-effects model. In the fluorosis systematic review, 41 out of 969 potentially eligible publications evaluated the impact of infant formula on enamel fluorosis risk. Fourteen publications did not report the findings in the results. The remaining 27 publications reported on 19 observational studies. Seventeen of these 19 studies reported odds ratio (OR) and among these infant formula consumption was associated with a higher prevalence of enamel fluorosis in the permanent dentition (summary OR=1.8; 95% confidence interval=1.4-2.3). There was significant heterogeneity among studies (I-squared=66%) and evidence of publication bias (p=0.002). A metaregression indicated that the odds ratios associating infant formula with enamel fluorosis increased by 5% for each 0.1 ppm increase in the reported levels of fluoride in the water supply (OR=1.05, 95% confidence interval=1.02-1.09). In the dental caries systematic review, 31 out of 1695 eligible publications evaluated the impact of infant formula on dental caries risk. Two publications did not report the findings in the results. The remaining 29 publications reported on 26 observational studies. General (summary OR=1.7; 95% confidence interval=1.2-2.4) and nocturnal (summary OR=2.0; 95% confidence interval=1.3- 3.0) infant... (Complete abstract, click electronic access below)
Mohd, Nor Nor Azlida. "The impact of the downward adjustment of fluoride concentration in the Malaysian public water supply on dental fluorosis and caries." Thesis, Cardiff University, 2017. http://orca.cf.ac.uk/107108/.
Full textNcube, Esper Jacobeth. "The distribution of fluoride in South African groundwater and the impact thereof on dental health." Diss., University of Pretoria, 2002. http://hdl.handle.net/2263/26112.
Full textDissertation (MSc (Water Utilization))--University of Pretoria, 2006.
Chemical Engineering
unrestricted
Ibiyemi, Olushola. "Factors associated with the occurrence of developmental defects of enamel and dental fluorosis among 4 and 8 year olds in Nigeria." Thesis, University of Newcastle upon Tyne, 2016. http://hdl.handle.net/10443/3370.
Full textKällner, Emma, and Evelina Blomquist. "The prevalence of dental caries and fluorosis among 5-7 year old children in Ga-Rankuwa, South Africa : A descriptive study." Thesis, Hälsohögskolan, Högskolan i Jönköping, HHJ. Oral hälsa, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-30463.
Full textSantos, Ana Paula Pires dos. "Efeito do dentifrício fluoretado na incidência de cárie na dentição decídua e fluorose na dentição permanente: revisões sistemáticas e metanálises." Universidade do Estado do Rio de Janeiro, 2012. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=3311.
Full textApesar do potencial anticárie do dentifrício fluoretado na dentição permanente estar bem estabelecido, existe uma lacuna no conhecimento em relação ao seu efeito na dentição decídua; não existe consenso quanto à concentração ideal de fluoreto no dentifrício capaz de maximizar o benefício anticárie na dentição decídua e simultaneamente minimizar o risco de desenvolver fluorose clinicamente importante na dentição permanente. O artigo 1 desta tese avaliou o efeito dos dentifrícios de concentração baixa (menos de 600 ppm) e padrão (1000 a 1500 ppm) de fluoreto comparados com placebo ou nenhuma intervenção e o artigo 2 comparou diretamente o efeito do dentifrício de concentração baixa de fluoreto com o de concentração padrão. Foi realizada uma revisão sistemática de ensaios clínicos randomizados ou quasi-randomizados. Dois examinadores leram, de forma independente, 1932 resumos ou citações e 159 estudos na íntegra. As discordâncias foram resolvidas por um terceiro examinador. Oito estudos foram incluídos no artigo 1 e cinco no artigo 2. Para avaliar o efeito dos dentifrícios fluoretados sobre o número de dentes e superfícies dentárias cariadas, perdidas por cárie e obturadas, e sobre o número de crianças com cárie e fluorose, foram estimados frações prevenidas (FP) e riscos relativos (RR) combinados, respectivamente. Quando os dentifrícios de concentração padrão de fluoreto foram comparados com placebo ou nenhuma intervenção, houve reduções significativas de cárie no nível de superfície (FP= 31%; IC 95% 18 43), dente (FP= 16%; IC 95% 7 24) e indivíduo (RR= 0,86; IC 95% 0,81 0,93). Quando os dentifrícios de concentração baixa de fluoreto foram comparados com nenhuma intervenção, houve redução significativa de cárie apenas no nível de superfície (FP= 40%; IC 95% 5 75) (artigo 1). Os dentifrícios de concentração baixa de fluoreto, comparados diretamente com os de concentração padrão, aumentaram significativamente o risco de cárie na dentição decídua (RR= 1,13; IC 95% 1,07 1,20) e não reduziram significativamente o risco de fluorose clinicamente importante nos dentes permanentes anteriores superiores (RR= 0,32; IC 95% 0,03 2,97). Houve uma redução significativa de cárie no nível de dente quando o dentifrício com concentração padrão de fluoreto foi comparado com o de baixa concentração (FP=14%; IC 95% 6 21). Porém, não houve diferença no nível de superfície, apesar de ter havido uma tendência favorecendo os dentifrícios com concentração padrão de fluoreto e pH neutro (FP= 13%; IC 95% -4 30) e os de concentração baixa de fluoreto e pH ácido (FP= -5%; IC 95% -22 11) (artigo 2). Os dentifrícios de concentração padrão de fluoreto foram mais efetivos na redução de cárie na dentição decídua de pré-escolares do que os de concentração baixa, placebo ou nenhuma intervenção. Os dentifrícios de concentração padrão de fluoreto, em comparação com os de concentração baixa, não aumentaram significativamente o risco de fluorose clinicamente importante nos dentes permanentes anteriores superiores. São necessários mais estudos para confirmar se a redução do pH dos dentifrícios de concentração baixa de fluoreto pode ser considerada uma alternativa para aumentar o efeito anticárie e reduzir o risco de fluorose clinicamente importante.
Despite the well established anti-caries effect of fluoride toothpaste in the permanent dentition, there is a gap in the knowledge reagarding its effect on the primary dentition; there is no consensus on the optimal fluoride concentration in toothpaste capable of maximizing the anti-caries benefits in the primary dentition and simultaneously minimizing the risk of clinically relevant fluorosis in the permanent dentition. Paper 1 of this thesis assessed the effects of low (less than 600 ppm) and standard (1000 to 1500 ppm) fluoride toothpastes compared to placebo or no intervention, whereas paper 2 compared directly the effects of low and standard fluoride toothpastes. A systematic review of randomized or quasi-randomized clinical trials was carried out. Two examiners independently read 1932 abstracts or citations and 159 full-text articles. Disagreements were solved by a third examiner. Eight studies were included in paper 1 and five in paper 2. Pooled prevented fractions (PF) and relative risks (RR) were estimated in order to assess the effects of fluoride toothpastes on the number of decayed, missing due to caries and filled teeth and dental surfaces, and on the number of children developing caries and fluorosis, respectively. When standard fluoride toothpastes were compared to placebo or no intervention, significant caries reductions were observed at surface (PF= 31%; 95% CI 18 - 43), tooth (PF= 16%; 95% CI 7 - 24) and individual (RR= 0.86; 95% CI 0.81 - 0.93) level. When low fluoride toothpastes were compared to no intervention, significant caries reduction was observed only at surface level (PF= 40%; 95% CI 5 - 75) (paper 1). Low fluoride toothpastes, compared directly to standard fluoride toothpastes, significantly increased the risk of caries in primary dentition (RR= 1.13; 95% CI 1.07 - 1.20) and did not significantly reduce the risk of clinically relevant fluorosis in upper permanent anterior teeth (RR= 0.32; 95% CI 0.03 - 2.97). There was a significant caries reduction at tooth level when standard fluoride toothpastes were compared to low fluoride toothpastes (FP= 14%; 95% CI 6 - 21). However, at surface level, no significant difference was observed, even though there was a tendency favouring standard fluoride toothpastes with neutral pH (PF= 13%; 95% CI -4 - 30) and low fluoride toothpastes with acidic pH (PF= -5%; 95% CI -22 - 11) (paper 2). Standard fluoride toothpastes were more effective in reducing caries in the primary dentition of preschool children than low fluoride toothpastes, placebo or no intervention. Standard fluoride toothpastes, when compared to low fluoride toothpastes, did not significantly increase the risk of clinically relevant fluorosis in upper permanet anterior teeth. Further research is necessary to confirm whether the reduction in the pH of low fluoride toothpastes might be an alternative to increase the anti-caries effects and to reduce the risk of clinically relevant fluorosis.
Pagliari, Ana Valéria [UNESP]. "Análise da concentração de íon flúor em leite em pó." Universidade Estadual Paulista (UNESP), 2004. http://hdl.handle.net/11449/95420.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação para o Desenvolvimento da UNESP (FUNDUNESP)
O leite materno é, indiscutivelmente, o alimento ideal para os primeiros meses de vida da criança, mas existem situações que impossibilitam ou dificultam seu consumo. Nestes casos, fórmulas infantis, leite de vaca integral diluído e leite de soja podem ser oferecidos. Este trabalho pretende avaliar o leite como contribuinte para a ingestão diária de flúor em crianças e como fator de risco para o desenvolvimento de fluorose dentária. A primeira parte procura estimar esta contribuição, partindo da concentração de flúor no leite humano, leite de vaca, leite em pó e fórmulas infantis, encontrada em pesquisas publicadas. Os resultados indicam que os leites materno e de vaca in natura não oferecem risco ao desenvolvimento de lesões de fluorose dentária esteticamente inaceitáveis em dentes decíduos ou permanentes, o mesmo ocorrendo para a ingestão de leite em pó quanto aos dentes permanentes. Já as fórmulas infantis e o leite em pó, comercializados no Brasil, preparados em água com concentração ótima de flúor (0,7 mg/L), podem contribuir com uma ingestão diária de flúor acima do limite considerado seguro, podendo provocar o aparecimento de lesões de fluorose em dentes decíduos. A segunda parte deste trabalho teve como objetivos determinar os teores de flúor de fórmulas infantis (n=7), leites (n=10) e leites de soja (n=3), em pó, produzidos em território nacional e adquiridos em Araçatuba-SP e avaliar a possibilidade de desenvolvimento de fluorose dentária, esteticamente inaceitável, com o consumo destes produtos. As amostras de pó foram reconstituídas em água deionizada e analisadas em duplicata pelo método eletrodo específico, após difusão facilitada por hexametildisiloxano...
Mother's milk is, unquestionably, the ideal food for children's first months of life, however, there are situations that make its consumption impossible. In these cases, infant formulas, cow's diluted whole milk and soy-milk can be offered. This paper intends to evaluate milk as a contributor for children's daily fluoride ingestion and as a risk factor to develop dental fluorosis. The first part estimates this contribution by the fluoride concentration of human milk, in natura cow's milk, powder-milk, infant formulas obtained from publications specialized on the subject. The results indicate that that human milk and in natura cow's milk do not offer risk to the development of esthetically unacceptable lesions of dental fluorosis in deciduous or permanent teeth, the same occurring with powder-milk ingestion for the permanent teeth. The infant formulas and powder-milk commercialized in Brazil, prepared in water with optimal fluoride concentration (0.7 mg F/L) can contribute to daily fluoride ingestion above the limit considered as safe for the development of fluorosis in deciduous teeth. The second part of this paper had the purpose to determine the fluoride content in infant formulas (n=7), powder-milk (n=10) and soy-milk (n=3) produced in the national territory and acquired in Araçatuba - SP, and evaluate the possibility to develop esthetically unacceptable dental fluorosis by consuming these products. The powder samples were reconstituted in deionized water and doublechecked through the potentiometrical method after hexametyldisiloxane facilitated diffusion... (Complete abstract, click electronic access below)
Zina, Lívia Guimarães. "Evidências científicas da associação entre fórmula infantil, fluorose e cárie dentária /." Araçatuba : [s.n.], 2009. http://hdl.handle.net/11449/104203.
Full textBanca: Dóris Hissako Sumida
Banca: Marília Afonso Rabelo Buzalaf
Banca: Eymar Sampaio Lopes
Banca: Maria Ercília de Araújo
Resumo: O consumo de fórmula infantil durante a primeira infância tem sido considerado um fator de risco em potencial para a fluorose e cárie dentária. O objetivo desta tese de doutorado foi avaliar, por meio de duas revisões sistemáticas e meta-análises, a relação entre o consumo de fórmula infantil e o risco de fluorose e cárie dentária. Para isso, foram consultadas oito bases de dados e listas de referências de artigos. A análise da relevância e abstração de dados foram realizadas em duplicata e independentemente por dois revisores. A qualidade dos estudos foi avaliada e os odds ratios, quando obtidos, foram combinados utilizando-se modelos de efeito aleatório. Na revisão sobre fluorose dentária, 41 de 969 publicações potencialmente elegíveis avaliaram o impacto da fórmula infantil no risco de fluorose dentária. Quatorze publicações não apresentaram os achados nos resultados. As restantes 27 publicações relataram os resultados em 19 estudos observacionais. Dezessete destes 19 estudos apresentaram odds ratio (OR) e entre eles o consumo de fórmula infantil esteve associado com uma maior prevalência de fluorose dentária na dentição permanente (OR global=1,8; intervalo de confiança de 95%=1,4-2,3). Observou-se significativa heterogeneidade entre os estudos (I-quadrado=66%) e evidência de viés de publicação (p=0,002). A metarregressão indicou que o odds ratio associado à fórmula infantil com a fluorose dentária aumentou em 5% para cada aumento de 0,1 ppm nos níveis de flúor da água de abastecimento (OR=1,05; intervalo de confiança de 95%=1,02-1,09). Na revisão sobre cárie dentária, 31 de 1.695 publicações elegíveis avaliaram o impacto da fórmula infantil no risco de cárie dentária. Duas publicações não apresentaram os achados nos resultados. As restantes 29 publicações relataram os resultados em 26 estudos... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Infant formula consumption during childhood has been considered a potential risk factor for enamel fluorosis and dental caries. The aim of this doctorate thesis was to evaluate, through two systematic reviews and meta-analysis, the relationship between infant formula consumption and the risk of enamel fluorosis and dental caries. Eight databases and reference list of articles were searched. Assessment of relevance and data abstraction were conducted in duplicate and independently by two reviewers. Study quality was assessed and odds ratios, when obtainable, were combined using a random-effects model. In the fluorosis systematic review, 41 out of 969 potentially eligible publications evaluated the impact of infant formula on enamel fluorosis risk. Fourteen publications did not report the findings in the results. The remaining 27 publications reported on 19 observational studies. Seventeen of these 19 studies reported odds ratio (OR) and among these infant formula consumption was associated with a higher prevalence of enamel fluorosis in the permanent dentition (summary OR=1.8; 95% confidence interval=1.4-2.3). There was significant heterogeneity among studies (I-squared=66%) and evidence of publication bias (p=0.002). A metaregression indicated that the odds ratios associating infant formula with enamel fluorosis increased by 5% for each 0.1 ppm increase in the reported levels of fluoride in the water supply (OR=1.05, 95% confidence interval=1.02-1.09). In the dental caries systematic review, 31 out of 1695 eligible publications evaluated the impact of infant formula on dental caries risk. Two publications did not report the findings in the results. The remaining 29 publications reported on 26 observational studies. General (summary OR=1.7; 95% confidence interval=1.2-2.4) and nocturnal (summary OR=2.0; 95% confidence interval=1.3- 3.0) infant... (Complete abstract, click electronic access below)
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