Dissertations / Theses on the topic 'Activators appliances'
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Araújo, Adriano Marotta [UNESP]. "Estudo cefalométrico com implantes metálicos dos efeitos do aparelho Bionator de Balters no desenvolvimento esquelético maxilo-mandibular durante o tratamento da má oclusão classe II divisão 1." Universidade Estadual Paulista (UNESP), 2003. http://hdl.handle.net/11449/104534.
Full textO propósito desse estudo foi avaliar os efeitos transversais nos maxilares e o crescimento mandibular ântero-posterior após terapia com aparelho ortopédico funcional. A amostra foi composta por 25 pacientes (15 do gênero masculino e 10 do gênero feminino) com má oclusão de Classe II e idade variando entre 6.9 e 11.2 anos. Os pacientes foram aleatoriamente divididos em dois grupos, grupo controle (n=11) e grupo experimental (n=14) e acompanhados longitudinalmente por 12 meses. O tratamento foi exclusivamente executado com o aparelho bionator de Balters por um período de 12 meses. O método de sobreposição, com auxílio de implantes metálicos, foi realizado na avaliação das alterações esqueléticas transversais dos maxilares, crescimento condilar e remodelação óssea da mandíbula. Os resultados mostraram que os pacientes sem tratamento exibiram um aumento significante, em largura, entre os implantes maxilares posteriores, mas a diferença entre os implantes anteriores e mandibulares não foi estatisticamente significante. A distância entre os implantes posteriores, no sentido transversal, aumentaram significantemente para os dois grupos, com o grupo bionator mostrando um aumento significativo maior do que o grupo controle. O grupo bionator também mostrou uma maior expansão entre os implantes localizado na mandíbula, porém essa diferença não foi estatisticamente significante. Com relação ao crescimento condilar, os resultados mostraram um redirecionamento do crescimento (mais posterior), e semelhante quantidade de crescimento para os dois grupos. O tratamento com o aparelho bionator produziu um crescimento e remodelação óssea maior do que o esperado nas regiões condilar e goniana da mandíbula. Sobreposição na base do crânio mostrou um deslocamento anterior da mandíbula e uma pequena ou quase ausente rotação anterior... .
The purpose of this study was to describe transverse skeletal base adaptations and mandibular growth associated with bionator therapy. The sample included 25 patients (15 males and 10 females) between 6.9 and 11.2 years of age with Class II division 1 malocclusion. The patients were randomly allocated to either a control (n=11) or treatment (n=14) group. Treatment consisted of a bionator only, and the patients were following longitudinally for approximately 12 months. Using metallic implants for superimposition, transverse skeletal base adaptations, condylar growth and mandibular remodeling changes were evaluated. The results showed that untreated Class II controls exhibit significant increases between posterior maxillary implants, but no significant changes between the anterior maxillary or mandibular implants. While posterior maxillary implants increased significantly in both groups, the treated group showed significantly greater width increases than the control group. The treated group also showed greater increases between mandibular implants, but the differences were not statistically significant. Condylar growth in perspective, the results showed significant changes in the direction (more posterior) but not in the amount of overall amount of condylar growth. The bionator appliance produced greater than expected posterior drift of landmarks in the condylar and gonial regions. Cranial base superimposition showed greater than expected anterior mandibular displacement, but little or no true mandibular forward rotation with bionator therapy. In conclusion, the bionator appliance alone produces transverse skeletal adaptations, condylar growth redirection and remodeling changes associated with mandibular rotation and displacement.
Araújo, Adriano Marotta. "Estudo cefalométrico com implantes metálicos dos efeitos do aparelho Bionator de Balters no desenvolvimento esquelético maxilo-mandibular durante o tratamento da má oclusão classe II divisão 1 /." Araraquara : [s.n.], 2003. http://hdl.handle.net/11449/104534.
Full textBanca: Ary dos Santos Pinto
Banca: Lídia Parsekian Martins
Banca: Hélio Terada
Banca: Ricardo Sampaio de Souza
Resumo: O propósito desse estudo foi avaliar os efeitos transversais nos maxilares e o crescimento mandibular ântero-posterior após terapia com aparelho ortopédico funcional. A amostra foi composta por 25 pacientes (15 do gênero masculino e 10 do gênero feminino) com má oclusão de Classe II e idade variando entre 6.9 e 11.2 anos. Os pacientes foram aleatoriamente divididos em dois grupos, grupo controle (n=11) e grupo experimental (n=14) e acompanhados longitudinalmente por 12 meses. O tratamento foi exclusivamente executado com o aparelho bionator de Balters por um período de 12 meses. O método de sobreposição, com auxílio de implantes metálicos, foi realizado na avaliação das alterações esqueléticas transversais dos maxilares, crescimento condilar e remodelação óssea da mandíbula. Os resultados mostraram que os pacientes sem tratamento exibiram um aumento significante, em largura, entre os implantes maxilares posteriores, mas a diferença entre os implantes anteriores e mandibulares não foi estatisticamente significante. A distância entre os implantes posteriores, no sentido transversal, aumentaram significantemente para os dois grupos, com o grupo bionator mostrando um aumento significativo maior do que o grupo controle. O grupo bionator também mostrou uma maior expansão entre os implantes localizado na mandíbula, porém essa diferença não foi estatisticamente significante. Com relação ao crescimento condilar, os resultados mostraram um redirecionamento do crescimento (mais posterior), e semelhante quantidade de crescimento para os dois grupos. O tratamento com o aparelho bionator produziu um crescimento e remodelação óssea maior do que o esperado nas regiões condilar e goniana da mandíbula. Sobreposição na base do crânio mostrou um deslocamento anterior da mandíbula e uma pequena ou quase ausente rotação anterior... (Resumo completo, clicar acesso eletrônico abaixo).
Abstract: The purpose of this study was to describe transverse skeletal base adaptations and mandibular growth associated with bionator therapy. The sample included 25 patients (15 males and 10 females) between 6.9 and 11.2 years of age with Class II division 1 malocclusion. The patients were randomly allocated to either a control (n=11) or treatment (n=14) group. Treatment consisted of a bionator only, and the patients were following longitudinally for approximately 12 months. Using metallic implants for superimposition, transverse skeletal base adaptations, condylar growth and mandibular remodeling changes were evaluated. The results showed that untreated Class II controls exhibit significant increases between posterior maxillary implants, but no significant changes between the anterior maxillary or mandibular implants. While posterior maxillary implants increased significantly in both groups, the treated group showed significantly greater width increases than the control group. The treated group also showed greater increases between mandibular implants, but the differences were not statistically significant. Condylar growth in perspective, the results showed significant changes in the direction (more posterior) but not in the amount of overall amount of condylar growth. The bionator appliance produced greater than expected posterior drift of landmarks in the condylar and gonial regions. Cranial base superimposition showed greater than expected anterior mandibular displacement, but little or no true mandibular forward rotation with bionator therapy. In conclusion, the bionator appliance alone produces transverse skeletal adaptations, condylar growth redirection and remodeling changes associated with mandibular rotation and displacement.
Doutor
Miller, Kevin Blaine. "A comparison of treatment impacts between invisalign and fixed appliance therapy during the first seven days of treatment." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0010291.
Full textTypescript. Title from title page of source document. Document formatted into pages; contains 36 pages. Includes Vita. Includes bibliographical references.
彭莉 and Li Jasmine Peng. "Effects of the headgear-activator appliance: a prospective study." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B3124466X.
Full textDurrett, Sharon Jeane. "Efficacy of composite tooth attachments in conjunction with the invisalign tm system using three-dimensional digital technology." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0004566.
Full textTypescript. Title from title page of source document. Document formatted into pages; contains 35 pages. Includes Vita. Includes bibliographical references.
Sawrie, Daniel C. "Cephalometric evaluation of bionator therapy in the early treatment of class II malocclusions." View the abstract Download the full-text PDF version, 2008. http://etd.utmem.edu/ABSTRACTS/2008-002-Sawrie-index.html.
Full textTitle from title page screen (viewed on July 25, 2008). Research advisor: Edward Harris, Ph.D. Document formatted into pages (xvi, 294 p. : ill.). Vita. Abstract. Includes bibliographical references (p. 169.182).
Phan, Kok-leong. "Treatment changes and effects, and follow-up changes with Headgear-activator and Herbst appliance /." View the Table of Contents & Abstract, 2005. http://sunzi.lib.hku.hk/hkuto/record/B35324818.
Full textPavlow, Sarah Stanley. "Effect of early treatment on stability of occlusion in patients with a class ii malocclusion." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0010440.
Full textTypescript. Title from title page of source document. Document formatted into pages; contains 30 pages. Includes Vita. Includes bibliographical references.
Phan, Kok-leong, and 彭國良. "Treatment changes and effects, and follow-up changes with Headgear-activator and Herbst appliance." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B4501226X.
Full textBrazeau, Lisamarie O. "Cephalometric analysis of posttreatment changes in class ii division 1 patients treated in either one or two phases." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0004880.
Full textTypescript. Title from title page of source document. Document formatted into pages; contains 31 pages. Includes Vita. Includes bibliographical references.
Frilund, Erik, and Lisa Widegren. "Compliance during orthodontic treatment with removable appliances when using two types of reminders, assessed by timer modules - A pilot study." Thesis, Malmö högskola, Odontologiska fakulteten (OD), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-19794.
Full textINTRODUCTION AND PURPOSE: Earlier studies on compliance and orthodontics have shown that one of the best ways to increase compliance is by supervising the wearing time. Compliance can also be increased by reminding the patient to use the removable appliance. This pilot study aims to investigate if any of two kinds of reminders objectively increase the compliance during orthodontic treatment with removable appliances or not.MATERIALS AND METHODS: 18 patients between 9-14 years of age were selected from a patient population attending the department of Orthodontics, Faculty of Odontology, Malmö University. They presented different types of malocclusion which made them candidates for treatment with either van Beek-appliances or expansion plate. The patients were randomly placed in one of three groups; alarm, calendar or control group. Wearing time was objectively collected from the TheraMon®-module placed inside the acrylic base of the appliances. After the data collecting-phase was finished the data was tested with Anova and t-test to determine whether there was a significant difference between the groups.RESULTS: The alarm group had the highest average wear time. The control group had slightly lower average wear time than the alarm group, and the calendar group had the least amount of average wear time. There was a difference in average wear time between van Beek and expansion plate, with van Beek having a lower average wear time than expansion plate. Patients treated with expansion plates were more cooperative than patients treated with van Beek appliances. When data was tested for significance, no statistical significance was found.CONCLUSION: The study concludes that an alarm type of reminder appears to be better at improving wear time than a calendar or no reminder at all. This indicates that for future studies there might be a reason to develop a reminder for patients, for example an app. The study concludes that patients with expansion plates appear more cooperative than patients using van Beek appliance, so therefore focus should be on improving cooperation for patients using these types of appliances. This study shows that future studies should use one type of appliance, e.g. van Beek. More patients are needed in future studies to achieve statistical significant results.
Hedrén, Pontus, and Agnes Ecorcheville. "Orthodontic treatments in general practice in cooperation with orthodontists -A survey of the recommended appliances among orthodontists in Sweden." Thesis, Malmö högskola, Odontologiska fakulteten (OD), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-19638.
Full textAbstractObjective: The aim of the present study was to obtain knowledge about different interceptive orthodontic treatments, investigate which orthodontic treatments are most frequently used by general practitioners and recommended by Swedish orthodontists and to see if the most common treatments corresponded to the educational dental program in orthodontics at Malmö University. Potential differences among groups were also investigated. Materials and methods: A PubMed search was made to investigate the literature of the most frequently used appliances in orthodontic treatment concerning the diagnoses and the appliances used in general practices. A questionnaire was sent to 169 consulting orthodontists to investigate the use of different appliances in cooperation with general practitioners.Results: A total of 153 articles were included in the literature study and frequently used treatments were presented.The most common appliance for correction of: - Posterior crossbite was the Quad Helix.- Anterior crossbite was a plate with Z-springs.- Class II malocclusion was the headgear activator, according to van Beek.A significant difference between genders was found, i.e. that female orthodontists recommended headgear activator more often than males for Class II in general practise. Conclusions: The choice of appliances mostly corresponded to what is most effective according to the literature included in the study and these are used in the educational program for dental students in Malmö.The differences between the genders of the orthodontists in choice of treatment are most likely due to the gender distribution of becoming orthodontists during the last five decades.
Marchi, Luiz Carlos. "Estudo comparativo cefalométrico dos efeitos dentoesqueléticos decorrentes do tratamento com dois tipos de aparelhos de Herbst e um grupo controle, em adolescentes com retrognatismo mandibular." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/23/23151/tde-11112013-192734/.
Full textThis retrospective controlled study enrolled 94 consecutive adolescents during growth spurt with Angle class II division 1 malocclusion and mandibular retrognathism and evaluated skeletal and dental changes resulting from treatment with a Herbst appliance (Group A: steel crowns; Group B: acrylic splints) and compared them with results of a follow-up group (Group C: control) for 12 months. Lateral radiographs were obtained in the beginning of the treatment (T1) and at the end of the observation period (T2). Cephalometric variables were analyzed using parametric tests. The results of the two treatment groups were different from those found for the control group. Maxillary growth was restricted, whereas mandibular growth was greater, which resulted in a better sagittal relation. At the same time, the analysis of dentoalveolar aspects revealed that overjet was reduced due to distal tipping of maxillary incisors and buccal inclination of mandibular incisors, vertical control of maxillary molars and mesial movement of mandibular molars. The three groups had similar extrusion of mandibular molars, preservation of mandibular morphology and facial pattern. The occlusal plane rotated clockwise in the treated groups and counterclockwise in the control group. It can be concluded that the treatment of class II malocclusion in adolescents during growth spurt with two types of Herbst appliance resulted in a set of changes that improved sagittal skeletal and dental relations, regardless of growth. Vertically, facial pattern was preserved in treatment and control groups, despite some small differences.
Laparidis, Con. "A retrospective cephalometric study of the effect of the Fränkel appliance, the ClarkTwin Block and the activator on class II division /." Title page, contents and summary only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09phl299.pdf.
Full textPinto, Paulo Roberto dos Santos. "Avaliação do crescimento mandibular e desenvolvimento dentário em crianças com má oclusão de Classe II, Divisão 1, naturais e induzidos pelo tratamento ortopédico com o Bionator de Balters/." Araraquara : [s.n.], 2009. http://hdl.handle.net/11449/100986.
Full textBanca: Luiz Gonzaga Gandini Júnior
Banca: Dirceu Barnabé Raveli
Banca: Adriano Marotta Araújo
Banca: Cláudio de Gois Nery
Resumo: Introdução: O presente trabalho foi consubstanciado em três capítulos como se seguem: Capítulo I - Crescimento mandibular e desenvolvimento dentoalveolar no tratamento da Classe II, divisão 1, com bionator de Balters em função da maturidade esquelética; Capítulo II - Influência da época de tratamento, no processo de crescimento e desenvolvimento mandibular e dentoalveolar, durante a correção da má oclusão de Classe II, divisão 1, com a utilização do bionator de Balters e, 3- Influência do Bionator de Balters no processo de crescimento e desenvolvimento mandibular e dentoalveolar, durante a correção da má oclusão de Classe II, divisão 1. Material e Método: Na realização dos três capítulos do trabalho, foram utilizadas telerradiografias laterais em 45 graus de crianças Classe II divisão 1, com retrusão mandibular acompanhadas sem tratamento ou durante o tratamento com o aparelho bionator de Balters. Superposições mandibulares orientadas por referências fixas e estáveis representadas por implantes metálicos de tântalo inseridos na região anterior e posterior do corpo da mandíbula foram utilizadas para avaliação das mudanças no crescimento da mandíbula (corpo, ramo e base) e mudanças na erupção dos dentes decíduos e permanentes. Capítulo I: Foram avaliados 3 grupos de crianças Classe II divisão 1, dois tratados pelo período de um ano com o aparelho bionator de Balters (Grupo 1: 6 crianças com 7 a 8 anos e Grupo 2: 10 crianças com 9 a 10 anos) e um sem tratamento (Grupo controle: 7 crianças com 8 a 9 anos). Capítulo II - Foram avaliados 4 grupos em diferentes tempos de tratamento: Grupos 1 e 2, pacientes com idades esqueléticas variando de 7 a 8,5 anos de idade (10pacientes) e dos 9,3 aos 10,7 anos (10pacientes) respectivamente, tratados por 1 ano com o bionator de Balters. Grupos 3 e 4, pacientes com idades esqueléticas variando... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Introduction: The actual study was structured in three chapters. Chapter I: Mandibular growth and dentoalveolar development in the treatment of the Class II division 1 malocclusion with the bionator of Balters according to the skeletal maturation. Chapter II: Influence of the bionator of Balters treatment phase, in the process of mandibular and dentoalveolar growth and development, during the correction of the Class II, division 1 malocclusion. Chapter III: Evaluation of the Bionator of Balters influence in the mandibular and dentoalveolar growth and development process, during the correction of Class II division 1 malocclusion. Material e Method: It was used in the three chapters, lateral 45 degree cephalometric radiographs of Class II division 1 children with mandibular deficiency, followed without treatment or during the treatment with the orthopedic appliance bionator of Balters. Mandibular superposition using tantalun metallic implants as fixed and stable references positioned in the anterior and posterior mandibular body were used for evaluation of the growth modifications of the mandible (condyle, ramus and base of the mandible) and of the eruption changes of the deciduous and permanent teeth. Chapter I: Three groups of children with Class II division 1 malocclusion were evaluated. Two of them were treated for one year with the bionator of Balters appliance in different skeletal ages (Group 1: 6 children 7 to 8 years old and Group 2: 10 children 9 to 10 years old) and the other one was followed without treatment (Control Group: 7 children 8 to 9 years old). Chapter II: Four groups of children with Class II division 1 treated with the bionator of Balters were evaluated: Groups 1 and 2 - Patients with skeletal age ranging from 7 to 8,5 years(10patients) and 9,3 to 10,7 years(10patients) respectively, treated for the first year with the appliance... (Complete abstract click electronic access below)
Doutor
Lima, Karina Jerônimo Rodrigues Santiago de. "Comparação das alterações dentoesqueléticas promovidas pelos aparelhos Jasper Jumper e Ativador combinado à ancoragem extrabucal seguido de aparelho fixo, no tratamento da Classe II, 1ª divisão." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/25/25134/tde-19062007-143047/.
Full textThis study compared the effects of treatment of Class II division 1 malocclusion with the Jasper Jumper and Activator-headgear combination, followed by fixed appliances. The study sample comprised 72 young individuals, divided into three groups: Study group 1, composed of 25 patients with initial mean age of 12.72 years, treated with the Jasper Jumper appliance associated with fixed appliances for a mean period of 2.15 years; Study group 2, composed of 25 patients with initial mean age of 11.07 years, treated with the Activatorheadgear combination followed by fixed appliances, with a mean treatment time of 3.21 years; and the Control group, composed of 22 young individuals, with initial mean age of 12.67 years, and followed for a mean period of 2.13 years. The initial and final lateral cephalograms of individuals in the three groups were evaluated. The changes of all cephalometric variables in the group treated with the Activator-headgear combination were annualized and then compared to the changes observed for the other groups, by analysis of variance and the Tukey test. It was observed that both treatments presented a restrictive effect on the maxilla, without changes in mandibular growth, yet promoted a tendency of clockwise mandibular rotation and a slight increase in lower anterior facial height. The maxillary incisors were retruded in both study groups, lingually tipped in Study group 2 and extruded in Study group 1. Both groups exhibited distalization of maxillary molars. The mandibular incisors presented protrusion and limitation of vertical development in patients treated with the Jasper Jumper appliance, and buccal tipping for individuals in Study group 2. The mandibular molars were extruded in both study groups and presented mesial movement in the group treated with the Jasper Jumper appliance. Both appliances provided significant improvement of maxillomandibular relationship, overjet, overbite and molar relationship.
Neves, Leniana Santos. "Estudo comparativo dos efeitos do tratamento da má oclusão de Classe II, 1ª divisão com os aparelhos Jasper Jumper e Bionator, associados ao aparelho fixo." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/25/25134/tde-19062007-160244/.
Full textThis study compared the treatment effects of Class II division 1 malocclusion with the appliances Jasper Jumper and Bionator, associated with fixed appliances. The study sample was composed of 77 young individuals, divided into three groups: Study Group 1, comprising 25 patients with initial mean age of 12.72 years, treated with the Jasper Jumper appliance associated with fixed appliances for a mean period of 2.15 years; Study Group 2, composed of 30 patients with initial mean age of 11.31 years, treated with the Bionator and fixed appliances, with a mean treatment time of 3.92 years; and the Control Group, including 22 young individuals, with initial mean age of 12.67 years and followed for a mean period of 2.13 years. The initial and final lateral cephalograms of individuals in the three groups were evaluated. The cephalometric dentoskeletal variables were compared among groups at the initial and final periods by analysis of variance. The changes of all cephalometric variables in the Bionator group were annualized and compared to the changes observed for the other groups. It was observed that both treatments presented a restrictive effect on the maxilla and did not change the mandibular development. Treatment with the Jasper Jumper appliance produced clockwise mandibular rotation, increase in lower anterior facial height, and smaller counterclockwise rotation of the functional occlusal plane compared to treatment with Bionator. The maxillary incisors were retruded in the study groups and extruded in the Jasper Jumper group, which also exhibited distalization of maxillary molars. The mandibular incisors presented protrusion and buccal tipping in the group treated with the Bionator appliance and a tendency to protrusion and relative intrusion in individuals treated with the Jasper Jumper appliance. The mandibular molars exhibited extrusion in both study groups and mesial movement in the Jasper Jumper group. Both appliances allowed significant improvement of overjet, overbite and molar relationship.
Monini, André da Costa. "Estudo cefalométrico com implantes metálicos das alterações esqueléticas, a longo prazo, após o uso do bionator de Balters /." Araraquara : [s.n.], 2008. http://hdl.handle.net/11449/95774.
Full textBanca: Adriano Marotta Araújo
Banca: Lídia Parsekian Martins
Resumo: O propósito deste estudo foi avaliar as alterações esqueléticas que ocorreram pela terapia com aparelho ortopédico bionator de Balters e aquelas que ocorreram após o tratamento. A amostra consistiu de 13 pacientes, 9 do gênero masculino e 4 do gênero feminino, com má oclusão de classe II, idade média de 9,34 anos ao início do tratamento, incisivos superiores e inferiores erupcionados ou em erupção, mordida profunda, ausência de perdas dentárias e ausência de apinhamento e/ou mordida cruzada posterior. Em todos eles foram inseridos implantes metálicos na maxila e na mandíbula. Os pacientes foram tratados com o aparelho bionator de Balters por 1,87 anos, em média, e acompanhados longitudinalmente por 6 anos, em média. Sobreposições cefalométricas, com auxílio dos implantes metálicos, foram realizadas para avaliação da intensidade e direção da remodelação e rotação da maxila e da mandíbula. A comparação com a literatura mostrou que os efeitos esqueléticos mais evidentes do aparelho foram a mudança de direção do crescimento condilar, a mudança da rotação total da maxila, a inibição da rotação total anti-horária mandibular e o aumento do crescimento transversal dos maxilares. Após a terapia com o bionator houve uma tendência de redirecionamento do crescimento condilar ao padrão original e manutenção do padrão da rotação total maxilar pela presença dos aparelhos fixos e uso de elásticos classe II. Concluiu-se que o tratamento da má oclusão de classe II com o bionator de Balters, nesta idade, produziu alterações esqueléticas em ambos os maxilares que voltaram a apresentar um padrão original de crescimento no período de avaliação subsequente.
Abstract: The purpose of this study was to evaluate the skeletal changes that occur after treatment with Balters' bionator appliance and those that occur after the treatment. The sample included 13 patients, 9 males and 4 females, with Class II malocclusion, mean age of 9.34 years at the beginning of the treatment, erupted upper and lower incisors, absence of dental loss, crowding and posterior crossbite. Each patient had metallic implants placed in the maxilla and the mandible before treatment. The patients were treated with Balters appliance for approximately 1.87 years, and were followed for approximately 5.68 years. Cephalometrics superpositions, using metallic implants as references, were performed to evaluated intensity and direction of the remodeling and rotation of the maxilla and the mandible. The comparison with literature showed that the more evident skeletal effects of the appliance had been the change in direction of condylar growth, the change in the total rotation of the maxilla, the inhibition of the total counterclockwise rotation mandibular and the increase of the transversal growth of maxilla and mandible. After therapy with bionator, was observed a tendency of change in direction of condylar growth to the original standard and maintenance of the standard in total rotation of the maxilla, due the presence of fixed appliances and use of Class II intermaxillary elastics. It can be concluded that the treatment of Class II malocclusion with Balters' bionator appliance, in this age, produced skeletal changes in both maxillaries that they had come back to present a normal standard of growth in the follow-up evaluation period.
Mestre
Chiqueto, Kelly Fernanda Galvão. "Comparação das alterações cefalométricas produzidas pelos aparelhos MARA e bionator no tratamento da classe II, 1ª divisão." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/25/25134/tde-15042009-111802/.
Full textThe effects produced by MARA and Bionator appliances on the Class II, division 1 treatment were compared. A sample of 66 young individuals was equally divided into three groups: MARA Group, with an initial mean age of 11.99 years, treated with MARA for a mean period of 1.11 year; Bionator Group, with initial mean age of 11.27 years, treated with Bionator appliance for a mean period of 1.51 year; and the Control Group, with initial mean age of 11.63 years, and followed for a mean period of 1.18 year with no treatment. The lateral cephalograms was used to compare the three groups, considering the cephalometric variables from the initial and final phases. Then, the variable changes were annualized in the Bionator Group to compare it with the others groups. For these comparisons, the analysis of variance and Tukey test were applied. The results showed that both appliances produced the following effects: maxillary growth restriction, no change on mandibular development, improvement of maxilomandibular relationship, increase of lower anterior facial height and counterclockwise rotation of the functional occlusal plane. In the maxillary arch, the incisors were retruded and the molars were distalized in the two treated groups, but with more quantity of molars distalization in the MARA Group, which also showed a distal inclination of molars long axis and intrusion of these teeth. In the mandibular arch, both appliances caused buccal tipping and protrusion of the incisors, and mesial inclination of molars long axis, with more buccal tipping and vertical development restriction of the incisors in the MARA Group. At last, the MARA and Bionator allowed significant improvement of overjet, overbite and molar relationship, with more correction of overjet and molar relationship in the MARA Group.
Vassoler, Amanda Amaral. "Comparação das alterações cefalométricas no tratamento da má oclusão de Classe II, 1ª divisão, com os aparelhos MARA e Bionator, seguidos do aparelho fixo." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/25/25144/tde-07072011-090055/.
Full textThis study aimed to evaluate, cephalometrically, dental and skeletal changes promoted by the MARA and Bionator, followed by fixed appliances on the treatment of Class II, Division 1 malocclusion. The sample comprised 40 young subjects, divided into two groups. MARA Group, was comprised 18 patients, 12 males and 6 females, among which 22.22% exhibited ½-cusp Class II, 38.89% ¾-cusp Class II, and 38.89% full-cusp Class II malocclusions (molar relationship). The initial age ranged from 10.29 years to 14.99 years (mean of 11.96 years). These patients were prospectively selected among young subjects who seek orthodontic treatment at the Orthodontic Department at Bauru Dental School, University of São Paulo, Brazil, during 2006 and treated with the MARA appliance followed by fixed appliances for a mean period of 3.47 years. Bionator Group, consisted of 22 patients, 13 males and 9 females, with initial mean age of 11.38 years; 27.27% exhibited ½-cusp Class II, 27.27% ¾-cusp Class II and 45.45% full-cusp Class II malocclusions (molar relationship). These patients were retrospectively selected from the files of the Orthodontic Department at Bauru Dental School, University of São Paulo, Brazil and treated with the Bionator followed by fixed appliances for a mean period of 3.95 years. The initial and final lateral cephalograms of individuals in the two groups were evaluated. The Student t test for independent samples was applied to compare the initial and final ages, the period of treatment, the initial and final cephalometric variables and the actual mean changes between the two groups. The distribution of genders and the severity of malocclusion between the groups were evaluated by the chi-square test. The changes between the initial and final stages of each group were evaluated by the t test for dependent samples. The results showed that, for both appliances, there was no significant change in maxillary and mandibular development, in the maxillomandibular relationship, the growth pattern, as well as in the maxillary arch and dental relationships. The mandibular molars presented significant distal angulation in both groups, with greater angulation in the Bionator Group.
Monini, André da Costa [UNESP]. "Estudo cefalométrico com implantes metálicos das alterações esqueléticas, a longo prazo, após o uso do bionator de Balters." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/95774.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
O propósito deste estudo foi avaliar as alterações esqueléticas que ocorreram pela terapia com aparelho ortopédico bionator de Balters e aquelas que ocorreram após o tratamento. A amostra consistiu de 13 pacientes, 9 do gênero masculino e 4 do gênero feminino, com má oclusão de classe II, idade média de 9,34 anos ao início do tratamento, incisivos superiores e inferiores erupcionados ou em erupção, mordida profunda, ausência de perdas dentárias e ausência de apinhamento e/ou mordida cruzada posterior. Em todos eles foram inseridos implantes metálicos na maxila e na mandíbula. Os pacientes foram tratados com o aparelho bionator de Balters por 1,87 anos, em média, e acompanhados longitudinalmente por 6 anos, em média. Sobreposições cefalométricas, com auxílio dos implantes metálicos, foram realizadas para avaliação da intensidade e direção da remodelação e rotação da maxila e da mandíbula. A comparação com a literatura mostrou que os efeitos esqueléticos mais evidentes do aparelho foram a mudança de direção do crescimento condilar, a mudança da rotação total da maxila, a inibição da rotação total anti-horária mandibular e o aumento do crescimento transversal dos maxilares. Após a terapia com o bionator houve uma tendência de redirecionamento do crescimento condilar ao padrão original e manutenção do padrão da rotação total maxilar pela presença dos aparelhos fixos e uso de elásticos classe II. Concluiu-se que o tratamento da má oclusão de classe II com o bionator de Balters, nesta idade, produziu alterações esqueléticas em ambos os maxilares que voltaram a apresentar um padrão original de crescimento no período de avaliação subsequente.
The purpose of this study was to evaluate the skeletal changes that occur after treatment with Balters` bionator appliance and those that occur after the treatment. The sample included 13 patients, 9 males and 4 females, with Class II malocclusion, mean age of 9.34 years at the beginning of the treatment, erupted upper and lower incisors, absence of dental loss, crowding and posterior crossbite. Each patient had metallic implants placed in the maxilla and the mandible before treatment. The patients were treated with Balters appliance for approximately 1.87 years, and were followed for approximately 5.68 years. Cephalometrics superpositions, using metallic implants as references, were performed to evaluated intensity and direction of the remodeling and rotation of the maxilla and the mandible. The comparison with literature showed that the more evident skeletal effects of the appliance had been the change in direction of condylar growth, the change in the total rotation of the maxilla, the inhibition of the total counterclockwise rotation mandibular and the increase of the transversal growth of maxilla and mandible. After therapy with bionator, was observed a tendency of change in direction of condylar growth to the original standard and maintenance of the standard in total rotation of the maxilla, due the presence of fixed appliances and use of Class II intermaxillary elastics. It can be concluded that the treatment of Class II malocclusion with Balters` bionator appliance, in this age, produced skeletal changes in both maxillaries that they had come back to present a normal standard of growth in the follow-up evaluation period.
Pinto, Paulo Roberto dos Santos [UNESP]. "Avaliação do crescimento mandibular e desenvolvimento dentário em crianças com má oclusão de Classe II, Divisão 1, naturais e induzidos pelo tratamento ortopédico com o Bionator de Balters." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/100986.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Introdução: O presente trabalho foi consubstanciado em três capítulos como se seguem: Capítulo I - Crescimento mandibular e desenvolvimento dentoalveolar no tratamento da Classe II, divisão 1, com bionator de Balters em função da maturidade esquelética; Capítulo II - Influência da época de tratamento, no processo de crescimento e desenvolvimento mandibular e dentoalveolar, durante a correção da má oclusão de Classe II, divisão 1, com a utilização do bionator de Balters e, 3- Influência do Bionator de Balters no processo de crescimento e desenvolvimento mandibular e dentoalveolar, durante a correção da má oclusão de Classe II, divisão 1. Material e Método: Na realização dos três capítulos do trabalho, foram utilizadas telerradiografias laterais em 45 graus de crianças Classe II divisão 1, com retrusão mandibular acompanhadas sem tratamento ou durante o tratamento com o aparelho bionator de Balters. Superposições mandibulares orientadas por referências fixas e estáveis representadas por implantes metálicos de tântalo inseridos na região anterior e posterior do corpo da mandíbula foram utilizadas para avaliação das mudanças no crescimento da mandíbula (corpo, ramo e base) e mudanças na erupção dos dentes decíduos e permanentes. Capítulo I: Foram avaliados 3 grupos de crianças Classe II divisão 1, dois tratados pelo período de um ano com o aparelho bionator de Balters (Grupo 1: 6 crianças com 7 a 8 anos e Grupo 2: 10 crianças com 9 a 10 anos) e um sem tratamento (Grupo controle: 7 crianças com 8 a 9 anos). Capítulo II - Foram avaliados 4 grupos em diferentes tempos de tratamento: Grupos 1 e 2, pacientes com idades esqueléticas variando de 7 a 8,5 anos de idade (10pacientes) e dos 9,3 aos 10,7 anos (10pacientes) respectivamente, tratados por 1 ano com o bionator de Balters. Grupos 3 e 4, pacientes com idades esqueléticas variando...
Introduction: The actual study was structured in three chapters. Chapter I: Mandibular growth and dentoalveolar development in the treatment of the Class II division 1 malocclusion with the bionator of Balters according to the skeletal maturation. Chapter II: Influence of the bionator of Balters treatment phase, in the process of mandibular and dentoalveolar growth and development, during the correction of the Class II, division 1 malocclusion. Chapter III: Evaluation of the Bionator of Balters influence in the mandibular and dentoalveolar growth and development process, during the correction of Class II division 1 malocclusion. Material e Method: It was used in the three chapters, lateral 45 degree cephalometric radiographs of Class II division 1 children with mandibular deficiency, followed without treatment or during the treatment with the orthopedic appliance bionator of Balters. Mandibular superposition using tantalun metallic implants as fixed and stable references positioned in the anterior and posterior mandibular body were used for evaluation of the growth modifications of the mandible (condyle, ramus and base of the mandible) and of the eruption changes of the deciduous and permanent teeth. Chapter I: Three groups of children with Class II division 1 malocclusion were evaluated. Two of them were treated for one year with the bionator of Balters appliance in different skeletal ages (Group 1: 6 children 7 to 8 years old and Group 2: 10 children 9 to 10 years old) and the other one was followed without treatment (Control Group: 7 children 8 to 9 years old). Chapter II: Four groups of children with Class II division 1 treated with the bionator of Balters were evaluated: Groups 1 and 2 – Patients with skeletal age ranging from 7 to 8,5 years(10patients) and 9,3 to 10,7 years(10patients) respectively, treated for the first year with the appliance... (Complete abstract click electronic access below)
Jacob, Helder Baldi [UNESP]. "Avaliação das dimensões e relacionamentos dos arcos dentários no tratamento da má-oclusão classe II, divisão 1 de Angle com aparelho bionator de Balters." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/95759.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
A deficiência de dados na literatura nos levou a avaliar o efeito do tratamento com o aparelho Bionator de Balters nas alterações das dimensões e relacionamento dos arcos dentários em crianças com má-oclusão Classe II, divisão 1 de Angle. O grupo experimental foi consistituido de 36 pares de modelos de pacientes leucodermas com idades entre 7 anos e 10 meses e 11 anos e 8 meses sendo 10 do gênero feminino e 8 do gênero masculino. A seleção da amostra teve como critérios de inclusão a presença dos incisivos centrais e laterais erupcionados, ausência de apinhamento dentário e relação transversal dos arcos normais. Um grupo controle (pseudo-amostra controle) foi simulado a partir de uma amostra obtida por Moyers com idade e gêneros aproximadamente iguais ao grupo experimental. A análise dos modelos constou de 24 medidas das quais 18 puderam ser comparadas com a pseudo-amostra. A aplicação do teste de Levene mostrou evidências estatísticas de semelhança entre os grupos. Procedeu-se então a análise estatística que mostrou alterações significantes (p<0,005) nas variáveis indicativas de distância intermolares superiores, sobressaliência horizontal, comprimento total do arco superior, comprimento anterior do arco superior, comprimento posterior do arco superior, relação molar direita, relação molar esquerda, relação canino direita e relação canino esquerda. Por outro lado não houve alteração significante em relação as medidas do arco inferior e distancia intercaninos do arco superior. Pode ser concluído com base nos resultados encontrados que o uso do aparelho Bionator de Balters teve efeito favorável na melhora da correção da má-oclusão de Classe II (diminuição das relações molares e caninos) e um aumento transversal do arco superior, principalmente na região posterior do arco.
The deficiency of data in the literature took us to evaluate the Bionator of Balters appliance in the alterations of the dimensions and relationship of the dental archs in children with malocclusion Class II, Division 1 of Angle. The experimental group was constituted of 36 pairs of cast of leucodermas patients between the age of 7 years and 10 months and 11 years and 8 months, being 10 females and 8 males. The sample selection had as criterion of inclusion the presence of the central and lateral incisor erupted, absence of crowded teeth and normal transversal relationship. A control group (pseudo-sample group) was simulated beginning from a sample obtained by Moyers with approximately the same age and gender to the experimental group. The analysis of the casts consisted of 24 measures and 18 of them could be compared with the pseudo-sample. The Leveneþs test showed statistical evidences of likeness among the groups. Statistical analysis was proceeded with showed significant alterations (p<0,005) in the variable indicatives of distance of maxillary first molars, over jet, total length of upper arch, anterior length of the upper arch, right molar relationship, left molar relationship, right canine relationship and left canine relationship. On the other hand, there wasn't significant alteration related to the lower arch and maxillary intercanines distance. It be concluded with the use of the Bionator of Balters appliance that it had a favorable effect in the improvement of the correction of the malocclusion in Class II (decrease of the molars and canines relationship) and transversal increase of the upper arch, mainly in the posterior area of arch.
Jacob, Helder Baldi. "Avaliação das dimensões e relacionamentos dos arcos dentários no tratamento da má-oclusão classe II, divisão 1 de Angle com aparelho bionator de Balters /." Araraquara : [s.n.], 2006. http://hdl.handle.net/11449/95759.
Full textBanca: Ana Claudia Moreira Melo
Banca: Dirceu Barnabé Raveli
Resumo: A deficiência de dados na literatura nos levou a avaliar o efeito do tratamento com o aparelho Bionator de Balters nas alterações das dimensões e relacionamento dos arcos dentários em crianças com má-oclusão Classe II, divisão 1 de Angle. O grupo experimental foi consistituido de 36 pares de modelos de pacientes leucodermas com idades entre 7 anos e 10 meses e 11 anos e 8 meses sendo 10 do gênero feminino e 8 do gênero masculino. A seleção da amostra teve como critérios de inclusão a presença dos incisivos centrais e laterais erupcionados, ausência de apinhamento dentário e relação transversal dos arcos normais. Um grupo controle (pseudo-amostra controle) foi simulado a partir de uma amostra obtida por Moyers com idade e gêneros aproximadamente iguais ao grupo experimental. A análise dos modelos constou de 24 medidas das quais 18 puderam ser comparadas com a pseudo-amostra. A aplicação do teste de Levene mostrou evidências estatísticas de semelhança entre os grupos. Procedeu-se então a análise estatística que mostrou alterações significantes (p<0,005) nas variáveis indicativas de distância intermolares superiores, sobressaliência horizontal, comprimento total do arco superior, comprimento anterior do arco superior, comprimento posterior do arco superior, relação molar direita, relação molar esquerda, relação canino direita e relação canino esquerda. Por outro lado não houve alteração significante em relação as medidas do arco inferior e distancia intercaninos do arco superior. Pode ser concluído com base nos resultados encontrados que o uso do aparelho Bionator de Balters teve efeito favorável na melhora da correção da má-oclusão de Classe II (diminuição das relações molares e caninos) e um aumento transversal do arco superior, principalmente na região posterior do arco.
Abstract: The deficiency of data in the literature took us to evaluate the Bionator of Balters appliance in the alterations of the dimensions and relationship of the dental archs in children with malocclusion Class II, Division 1 of Angle. The experimental group was constituted of 36 pairs of cast of leucodermas patients between the age of 7 years and 10 months and 11 years and 8 months, being 10 females and 8 males. The sample selection had as criterion of inclusion the presence of the central and lateral incisor erupted, absence of crowded teeth and normal transversal relationship. A control group (pseudo-sample group) was simulated beginning from a sample obtained by Moyers with approximately the same age and gender to the experimental group. The analysis of the casts consisted of 24 measures and 18 of them could be compared with the pseudo-sample. The Leveneþs test showed statistical evidences of likeness among the groups. Statistical analysis was proceeded with showed significant alterations (p<0,005) in the variable indicatives of distance of maxillary first molars, over jet, total length of upper arch, anterior length of the upper arch, right molar relationship, left molar relationship, right canine relationship and left canine relationship. On the other hand, there wasn't significant alteration related to the lower arch and maxillary intercanines distance. It be concluded with the use of the Bionator of Balters appliance that it had a favorable effect in the improvement of the correction of the malocclusion in Class II (decrease of the molars and canines relationship) and transversal increase of the upper arch, mainly in the posterior area of arch.
Mestre
Melo, Júnior Djalmyr Brandão de Carvalho. "COMPARAÇÃO DA EFICIÊNCIA OCLUSAL DO TRATAMENTO ORTOPÉDICO COM O REGULADOR DE FUNÇÃO FRÄNKEL-2 E BIONATOR DE BALTERS POR MEIO DO ÍNDICE PAR." Universidade Metodista de São Paulo, 2010. http://tede.metodista.br/jspui/handle/tede/1276.
Full textThe objective of this retrospective study was to compare the occlusal efficiency of orthopedic treatments using the Fränkel-2 regulator (RF 2) and Balters Bionator functional appliances, treated during different dental development stages, and compare them to a control group. The sample consisted of 45 documented records, belonging to the Dental School graduate program with a concentration area in orthodontics at the Methodist University of São Paulo. All records featured an initial Class II division 1 bilateral malocclusion. Of these, 15 patients were treated with the Bionator (group 1), with average initial age of 8.56 years and 80% of cases in dental development stage-2 (DS 2); 15 patients were treated with RF 2 (group 2), with average initial age of 10.71 years and 80% of cases in dental development stage -3 (DS 3); and a control group with 15 patients (group 3), with average initial age of 10.03 years and with dental development stage compatible both with groups 1 and 2. The groups were divided into two phases, according to the evaluation period: T1: beginning of treatment, and T2: final treatment, totaling 90 pairs of models. The occlusal evaluations were performed in plaster models, using the PAR index with the aid of the PAR ruler and a properly calibrated digital micrometer caliper. For intergroup comparison, ANOVA and Tukey test were used. The severity of the malocclusions (INITIAL PAR) was similar in all groups; however, the final PAR index showed a statistically significant difference, in which the percentile reduction for the PAR index was 20.72% for group 1, 60.06% for group 2, and no significant difference in the final PAR index for group 3. The present study concludes that the treatment for Class II division 1 malocclusion is more efficient when is begins during dental development stage-3 (DS 3) than in dental development stage-2 (DS 2). Moreover, importance is given to a more prolonged use of the dental appliance, as patients in group 2 showed better occlusal results.(AU)
O objetivo deste estudo retrospectivo foi comparar a eficiência oclusal do tratamento ortopédico com os aparelhos funcionais Regulador de Função Fränkel-2 e Bionator de Balters em um estágio de desenvolvimento dental diferente e comparar com um grupo controle. A amostra constituiu-se de 45 registros de documentações, pertencentes ao arquivo do programa de pós-graduação em Odontologia, área de concentração Ortodontia, da Universidade Metodista de São Paulo, com má oclusão inicial de Classe II bilateral, divisão 1, sendo 15 pacientes provenientes do grupo tratados com Bionator (grupo 1) com média de idade incial de 8,56 anos e com 80% dos casos em um estágio de desenvolvimento dental-2 (DS 2), 15 pacientes tratados com RF-2 (grupo 2) com média de idade inicial de 10,71 anos e com 80% dos casos em um estágio de desenvolvimento dental-3 (DS 3), e 15 pacientes controle (grupo 3) com media de idade incial de 10,03 anos e com estágio de desenvolvimento dental compatível com os grupos 1 e 2. Os grupos foram divididos em duas fases, de acordo com o período de avaliação: T1:início de tratamento e T2: final de tratamento, totalizando 90 pares de modelos. As avaliações oclusais foram realizadas em modelos de gesso, utilizando o Índice PAR com auxílio da régua PAR e de um paquímetro digital devidamente calibrado. Para comparação entre os três grupos foi utilizado Análise de Variância a um critério e em seguida o Teste de Tukey. A severidade da má oclusão (PAR Inicial) foi semelhante em ambos os grupos, porém, o PAR final apresentou uma diferença estatisticamente significante onde o percentual de redução do índice PAR para o grupo 1 foi de 20,72%, para o grupo 2 foi de 60,06% e no grupo 3 não houve alteração significante do valor do Índice PAR. O presente estudo conclui que o tratamento da má oclusão de Classe II, 1a divisão é mais eficiente quando iniciado no estágio de desenvolvimento dental 3 (DS 3) do que no estágio de desenvolvimento dental 2 (DS2). Além disso, ressalta-se a importância do uso mais prolongado do aparelho ortopédico, já que os pacientes do grupo 2 apresentaram melhores resultados oclusais.(AU)
Teixeira, Andressa Otranto de Britto. "Uso de aparelho de protrusão mandibular como recurso para tratamento da síndrome da apnéia obstrutiva do sono." Universidade do Estado do Rio de Janeiro, 2008. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=739.
Full textO tratamento para a Síndrome da Apnéia Obstrutiva do Sono (SAOS) mostra-se necessário devido às co-morbidades associadas ao quadro da síndrome. Fatores como problemas cardiovasculares, e aumento das chances de acidentes automobilísticos e de trabalho, além da diminuição da qualidade de vida, fazem dessa condição um sério problema a ser tratado. Dentre os tratamentos clínicos têm recebido especial atenção os aparelhos intra-orais por se tratar de um método simples e não invasivo. Os objetivos deste trabalho foram avaliar através dos índices polissinográficos as melhoras produzidas por um aparelho experimental e um aparelho placebo, e através de radiografias cefalométricas analisar fatores anatômicos relacionados com a severidade inicial do quadro e com as alterações do quadro da síndrome decorrentes do uso do aparelho experimental (Twin Block). Dezenove pacientes participaram deste estudo que foi prospectivo, com acompanhamento médio de 10,5 meses, cruzado, randomizado e duplo-cego. Foram feitas polissonografias iniciais e em uso dos aparelhos, após em média 6,47 (d.p.=2,01) meses do uso do Twin Block e 3,8 (d.p.=0,84) meses do uso do placebo e radiografias cefalométricas inicial e com o aparelho Twin Block em posição. Os dados pareados foram avaliados pelo teste de Wilcoxon, os não pareados pelos testes t de Student e Mann-Whitney e a comparação de proporções com o teste z, todos com 5% de significância (p<0.05). Os resultados mostraram tendências, embora não comprovadas estatisticamente, nas quais o grupo com SAOS moderada apresentou medidas de faringe menores e posição do osso hióide menos caudal quando comparados com o grupo com SAOS leve; que houve melhor resposta à terapia com o Twin-Block do que com o placebo, considerando-se o índice de apnéias mais hipopnéias por hora de sono (IAH), o índice de apnéias por hora de sono (IA), e a percentagem de sono REM; que a posição do osso hióide vertical diminuiu mais nos pacientes que melhoraram, tanto para o IAH quanto para o IA, que a maioria das medidas de faringe sofreram maior aumento nos pacientes que melhoraram em comparação com os que não melhoraram.Também foi possível estabelecer-se correlação positiva entre hipofaringe (HF) e os pacientes que melhoraram (avaliando pelo IAH), entre distância do osso hióide a terceira vértebra cervical (DHTV), faringe na altura do plano oclusal [NF(2)], largura do palato mole (PM) e os pacientes que melhoraram (avaliando pelo IA), além de entre NF (2) e os pacientes que não melhoraram (avaliando pelo IA). Conclui-se que o Twin Block mostrou-se clinicamente mais efetivo que o aparelho placebo no controle da SAOS, que algumas medições cefalométricas podem estar relacionadas com a severidade da síndrome medida inicialmente e que há variações de alterações anatômicas entre os pacientes que responderam e não responderam à terapia com aparelho intra-oral.
The treatment for the Obstructive Sleep Apnea Syndrome (OSAS) is necessary due to the co-morbidities associated with the syndrome. Factors such as cardiovascular problems, higher risk of automobile and work accidents, in addition to the decreased quality of life, makes the condition a serious problem to be treated. Among the treatments, clinicians have given special attention to the intra-oral appliances because it is simple and noninvasive. The objectives of this study were to evaluate by polysomnographyc indexes the improvements produced by both experimental and placebo units, and by cephalometric radiographs examine anatomical factors related with the initial severity of the syndrome and with the changes resulting from the use of the experimental appliance (Twin Block). Nineteen patients participated in this crossover, randomized, double-blind and prospective study, with monitoring average of 10.5 months. Polysomnographys were made in the initial use of the devices, after an average of 6.47 months (s.d. = 2.01) of Twin Block use and 3.8 months (s.d. = 0.84) of placebo use, along with cephalometric radiographs taken initially and with the Twin Block in position. Paired data were analyzed by the Wilcoxon test, non-paired by the Student t test and Mann-Whitney and compared proportions with the test z, all with 5% of significance (p <0.05). The results showed trends, though not statistically proven, that the group with moderate OSAS presented lower measures for the pharynx and higher hyoid bone position when compared to the group with mild OSAS; that the patients were more responsive to therapy with Twin-Block than with placebo, considering the index of more apnea hypopnea per hour of sleep (AHI), the index of sleep apnea per hour (AI), and the percentage of REM sleep; that the position of the vertical hyoid bone decreased more in patients who improved, both for the AHI and for the AI; that most pharyngeal measures suffered greater increase in patients who improved in comparison with those who did not get better. It could also be established a positive correlation between hypopharynx (HF) and patients who improved (by assessing AHI), distance between the hyoid bone and the third cervical vertebra (DHTV), pharynx in the occlusal plain [NF (2)], the width of the soft palate (PM) and patients that improved (by assessing AI), and between NF (2) and patients who had not improved (by assessing AI). It is concluded that the Twin Block was clinically more effective than the placebo unit in the control of OSAS, that some cephalometric measurements may be related to the severity of the syndrome measure initially and that there are variations in anatomic changes among patients who responded and not responded to therapy with intra-oral device.
Abi-Ramia, Luciana Baptista Pereira. "Avaliação tridimensional da via aérea superior de pacientes com apneia obstrutiva do sono que utilizaram aparelho de avanço mandibular." Universidade do Estado do Rio de Janeiro, 2009. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=2559.
Full textOs objetivos deste estudo foram avaliar o efeito do aparelho de avanço mandibular (Twin block - TB) no volume das vias aéreas superiores, por meio de tomografia computadorizada cone beam (CBCT); analisar, por meio da polissonografia, as mudanças no índice de apneia e hipopneia (IAH) e índice de apneia por hora de sono (IA), saturação de oxi-hemoglobina e eficiência do sono; e correlacionar o volume na CBCT e as polissonografias. Dezesseis pacientes portadores de apneia obstrutiva do sono, idade média de 47,06 anos, participaram deste estudo prospectivo, com acompanhamento médio de 7 meses. Foram feitas polissonografias iniciais (T1) e de acompanhamento (T2) com o TB em posição, e CBCT sem e com TB em posição. A segmentação e obtenção dos volumes das vias aéreas superiores foram realizadas e utilizados os testes t de Student pareado, de Wilcoxon e o índice de correlação de Spearman, com 5% de significância. Os resultados das polissonografias mostraram diferenças estatisticamente significativas entre T1 e T2 apenas para IAH (p<0,05). Houve aumento do volume da via aérea superior com TB quando comparado com o volume sem TB (p<0,05). Foi possível estabelecer-se correlação positiva entre volume da via aérea superior sem TB e IAH e IA em T1 (p<0,05), mas não houve correlação entre o volume da via aérea com TB e índices polissonográficos em T2. Pode-se concluir que, houve aumento de volume da via aérea superior com o TB e houve redução do IAH em T2 porém, sem correlação entre estes dados.
The aim of this study were to evaluate the effect of a mandibular advancement device (Twin Block TB) in the upper airway volume, with cone beam computed tomography (CBCT); to analyze, by polysomnographys, changes in apnea and hipopnea index per hour (AHI), apnea index per hour of sleep (AI), oxyhemoglobin saturation and sleep efficiency; and correlate changes in volume in CBCT and the results of polysomnography. Sixteen OSA patients, mean age of 47.07 years, participated in this prospective study, with follow up of 7 months. Initial polysomnography (T1) and follow up polysomnography (T2) were taken with TB in position, and CBCT with and without TB were taken. Upper airway segmentations and volumes were performed and were evaluated by the Student t test, the Wilcoxon test, and Spearman correlation, with 5% significance level. The results of the polysomnographs showed statistically significant differences between T1 and T2, only for AHI (p<0.05). There was an increased airway volume with TB in position when compared to volume without TB (p<0.05). A positive correlation between upper airway volume without TB and T1 AHI and AI was established (p<0.05), but there was no correlation between upper airway volume with TB and T2 polysomnography indexes. In conclusion, there was an increase in volume of the upper airway with the TB and reduction of AHI in T2 but without correlation with these data.
Gilbert, Raymond H. "A cephalometric study of the treatment effects of the activator a thesis submitted in partial fulfillment ... orthodontics ... /." 1986. http://books.google.com/books?id=FZ09AAAAMAAJ.
Full textFreeman, Christopher S. "Treatment effects of the bionator and high-pull facebow combination followed by fixed appliances in patients with increased vertical dimension a thesis submitted in partial fulfillment ... for the degree of Master of Science in Orthodontics ... /." 2004. http://catalog.hathitrust.org/api/volumes/oclc/68962656.html.
Full textLaparidis, Constantinos. "A retrospective cephalometric study of the effect of the Frankel appliance, the ClarkTwin Block and the activator on class II division / by Con Laparidis." 1999. http://hdl.handle.net/2440/19456.
Full text288 leaves : col. ill. ; 30 cm.
Title page, contents and abstract only. The complete thesis in print form is available from the University Library.
An observational retrospective study to determine if any difference exists in the soft tissue profile of Class II division 1 patients before and after treatment with three different functional appliances; the activator with headgear, the Clark Twin Block, and the Frankel.
Thesis (M.D.S.)--University of Adelaide, Dept. of Dentistry, 1999