Academic literature on the topic 'Bacteria Dental plaque Ozone'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Bacteria Dental plaque Ozone.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Bacteria Dental plaque Ozone"
1
Rusdy, Hendry, Rahmi Syaflida Dalimunthe, Ahyar Riza, and Ismahani Akilah D. "The disinfection effectiveness of ozone water and 4.8% chloroxylenol against the number of bacterial colonies in dental extraction instruments at the USU Dental and Oral Hospital in October-December 2022." F1000Research 12 (June 21, 2023): 726. http://dx.doi.org/10.12688/f1000research.132941.1.
Full textAbstract:
Background: The application of disinfectants on dental instruments is one way to prevent cross-infection. Cross infection can occur due to microorganisms found in blood, saliva and dental plaque which can contaminate the instruments used by dental health workers. Thus, indirect contact transmission of pathogenic microorganisms occurs from instruments that have been contaminated by dental health workers. Ozone water and 4.8% chloroxylenol are disinfecting agents used to disinfect medical instruments. This study aimed to determine the effectiveness of disinfection of ozone water and 4.8% chloroxylenol in reducing the number of bacterial colonies on dental extraction instruments at the USU Dental and Oral Hospital between October-December 2022. Methods: The samples used were mandibular molar pliers that have been used in tooth extraction procedures. This study was experimental and used three sample groups, where each group consisted of 10 tooth extraction instruments. The treatment group used ozone water and 4.8% chloroxylenol and the negative control group was cleaned with distilled water. The test effectiveness in this study used bacteria colony counter using the scatter cup method. Data were analyzed using the Kruskal Wallis and Mann-Whitney U tests. Results: The results of the data analysis showed a p-value ≤0.001, which means that there was a significant difference in the disinfection using ozone water and 4.8% chloroxylenol on the number of bacterial colonies on dental extraction instruments. The results of this study show that the average number of bacterial colonies formed in the ozone water treatment group was 4.00 ± 4.32, 16.00 ± 6.65 in the 4.8% chloroxylenol treatment group, and 217.50 ± 39.24 in the negative control group (Aquadest). Conclusions: From this study it can be said that ozone water is more effective in disinfecting dental extraction instruments than 4.8% chloroxylenol.
2
Rusdy, Hendry, Rahmi Syaflida Dalimunthe, Ahyar Riza, and Ismahani Akilah D. "Ozone water or chloroxylenol: The comparison of disinfection effectiveness against the number of bacterial colonies in dental extraction instruments at the USU Dental and Oral Hospital." F1000Research 12 (May 24, 2024): 726. http://dx.doi.org/10.12688/f1000research.132941.2.
Full textAbstract:
Background The application of disinfectants on dental instruments is one way to prevent cross-infection. Cross infection can occur due to microorganisms found in blood, saliva and dental plaque which can contaminate the instruments used by dental health workers. Thus, indirect contact transmission of pathogenic microorganisms occurs from instruments that have been contaminated by dental health workers. Ozone water and 4.8% chloroxylenol are disinfecting agents used to disinfect medical instruments. This study aimed to determine the effectiveness of disinfection of ozone water and 4.8% chloroxylenol in reducing the number of bacterial colonies on dental extraction instruments at the USU Dental and Oral Hospital between October-December 2022. Methods The samples used were mandibular molar pliers that have been used in tooth extraction procedures. This study was experimental and used three sample groups, where each group consisted of 10 tooth extraction instruments. The treatment group used ozone water and 4.8% chloroxylenol and the negative control group was cleaned with distilled water. The test effectiveness in this study used bacteria colony counter using the scatter cup method. Data were analyzed using the Kruskal Wallis and Mann-Whitney U tests. Results The results of the data analysis showed a p-value ≤0.001, which means that there was a significant difference in the disinfection using ozone water and 4.8% chloroxylenol on the number of bacterial colonies on dental extraction instruments. The results of this study show that the average number of bacterial colonies formed in the ozone water treatment group was 4.00 ± 4.32, 16.00 ± 6.65 in the 4.8% chloroxylenol treatment group, and 217.50 ± 39.24 in the negative control group (Aquadest). Conclusions From this study it can be said that ozone water is more effective in disinfecting dental extraction instruments than 4.8% chloroxylenol.
3
Adhami, Ziya Ebrahim, Leila Erfanparast, Zahra Molaei, Javid Sadeghi, and Azam Yazdanparas. "Effect of 20-ppm ozone and 1% chlorhexidine gels on plaque index and Streptococcus mutans counts in the dental plaque in 6–12-year-old children: A randomized, double-blind clinical trial." Journal of Dental Research, Dental Clinics, Dental Prospects 17, no. 3 (2023): 177–81. http://dx.doi.org/10.34172/joddd.2023.40461.
Full textAbstract:
Background. One of the methods to control dental caries is to use ozone. Since it is difficult for children to use mouthwashes, the present study aimed to evaluate 20-ppm zone and 1% chlorhexidine (CHX) gels’ effects on the plaque index and Streptococcus mutans counts in 6–12-year-old children. Methods. In the present double-blind clinical trial, 165 children, 6–12 years of age, referring to the Department of Pediatric Dentistry, Tabriz Faculty of Dentistry, were selected based on inclusion and exclusion criteria and randomly assigned to three groups: ozone gel, CHX gel, and control. The subjects were instructed to place an adequate amount of the gels on all the surfaces of their teeth with one clean finger. The patients and evaluators were blinded to the study groups. The plaque index and S. mutans counts in plaque samples were determined before intervention and three weeks after intervention on the buccal surface of the most posterior maxillary tooth (left or right). S. mutans counts were determined by culture. STATA software version 14 was used for statistical analyses using Wilcoxon, Kruskal-Wallis, and post hoc Dum tests. Statistical significance was defined at P<0.05. Results. The 20-ppm ozone and 1% CHX gels significantly decreased dental plaque compared to the control group (P<0.05), and their effects were similar (P>0.05). These gels significantly decreased the colonies and bacterial counts of S. mutans (P<0.05). Conclusion. The performance of 20-ppm ozone gel in decreasing the dental plaque and S. mutans counts was similar to 1% CHX gel.
4
Kirilova, Janet, and Dimitar Kirov. "PREVENTION OF DENTAL CARIES IN CARIES-ACTIVE INDIVIDUALS BY GASEOUS OZONE." Journal of IMAB - Annual Proceeding (Scientific Papers) 29, no. 1 (2023): 4805–9. http://dx.doi.org/10.5272/jimab.2023291.4805.
Full textAbstract:
Introduction: The action of ozone is associated with the prevention of dental plaque formation, and the reduction of bacterial development supports the prevention of dental caries. This paper aims to establish the effect of gaseous ozone on developing new caries lesions two years after its application for caries-active patients. Material and Methods: Patients aged 30 to 50 were selected with no common diseases. They all have five or more caries on the teeth, without missing teeth. Patients were divided into two groups of 10 participants. One group had ozonation of all teeth, and another is a control group without ozonation. Results: After two years, the number of caries lesions in the group without prophylactic ozonation is more significant. The results showed that the patients in the ozonation group had significantly fewer primary caries than those in the control group( p≤0.0001). Conclusions: Repeated ozonation of all teeth according to the applied methodology (10 times, distributed twice a week by 24 seconds exposure to ozone in a gaseous state) has a caries-protective effect against new caries lesions.
5
M.S, Serene, Shipra Jaidka, Rani Somani, et al. "NONFLUORIDATED REMINERALIZING AGENTS." International Journal of Advanced Research 10, no. 09 (2022): 618–26. http://dx.doi.org/10.21474/ijar01/15400.
Full textAbstract:
Early diagnosis of dental caries is of paramount importance. If we are able to intercept caries lesion at subsurface level with the help of remineralizing agents, we can actually achieve a caries free mouth.Remineralization was ruled by fluorides from the 1960s. Since then it has been successfully remineralizing carious lesions & has certain disadvantages like it is dependant on calcium and phosphate from saliva to accomplish this. Also overuse of fluorides can cause dental and skeletal fluorosis. This made researchers to explore nonfluoridated remineralizing agents.ACP compounds are considered prime candidates for remineralization therapy due to their high solubility under oral conditions and ability to rapidly hydrolyze to form apatite. Casein phospho-peptides are responsible for the high bioavailability of calcium from milk and other dairy products. CPP have the ability to bind and stabilize calcium and phosphate in solution, as well as to bind to dental plaque and tooth enamel. CPP stabilize ACP, localize ACP in dental plaque, thereby maintaining a state of supersaturation with respect to tooth enamel, reducing demineralization. TCP is a new hybrid material & when TCP comes into contact with the tooth surface and is moistened by saliva, the protective barrier breaks down making calcium, phosphate and fluoride ions available to the tooth. Xylitol, sugar substitute especially in chewing gums which increases salivary flow rate and enhances the protective properties of saliva. Bioactive glass is made of synthetic mineral containing sodium, calcium, phosphorous and silica which are all elements naturally found in the body. Ozone can shift microbial flora from acidogenic bacteria to normal commensals allowing remineralization to occur. Nanohydroxyapatite, a bioactive and biocompatible material, functions by directly filling up the micropores in early caries lesions.On the basis of the available data authors have given an insight into different nonfluoridated remineralizing agents in this article.
6
Ekren–Aşıcı, Gamze Sevri, Umut Kal, Seda Berberoğlu, and Funda Kıral. "The therapeutic effect of ozone–enriched propolis oil extraction in cats with gingivitis." Revista Científica de la Facultad de Ciencias Veterinarias 35, no. 1 (2025): 8. https://doi.org/10.52973/rcfcv-e35540.
Full textAbstract:
In cats, gingivitis treatment typically involves professional dental cleaning under anesthesia, pain management, and antibiotic administration to reduce inflammation. Considering the disadvantages of antibiotic administration, the necessity for alternative acute treatment protocols arises. It is believed that enhancing the antibacterial, anti–inflammatory, and local anesthetic effects of propolis with ozone could shorten the treatment duration, help reduce the risks associated with gingivitis, and also support the overall health of the cat. The study included 20 domestic cats diagnosed with the causative agent of gingivitis presented to private clinics. The cats included in the study were grouped based on bacterial agents (n=10; Female=4, Male=6) and viral agents (n=10; Female=5, Male=5). Propolis extracted with ozone–enriched oil was administered in spray form for 14 days (d). Before the application and on the 7 th and 14 th d of the treatment, the gingival indices of the cats were recorded, scored, saliva samples were collected, and photographs were taken. The levels of VEGF and TNF– α in saliva were determined using a cat-specific ELISA kit. When the data were evaluated, the application of ozone–enriched propolis demonstrated a statistically significant reducing effect on the levels of TNF–α in saliva in both groups (P<0.01). Salivary VEGF levels showed a significant increase during application, especially in gingivitis caused by bacterial agents (P<0.05). In the viral group, application was found to be more effective in increasing VEGF levels during the first 7 d. In gingivitis caused by bacterial agents, the gingival index (GI) and plaque index (PI) decreased compared to pre–treatment values (P<0.05). In gingivitis associated with viral agents, the decrease in the GI was statistically significant, while the decrease in the PI was found to be non– significant. In conclusion, this study demonstrated that the application of ozone–enriched propolis might be an alternative treatment option for cats with gingivitis.
7
Belay, N., R. Johnson, B. S. Rajagopal, E. C. de Macario, and L. Daniels. "Methanogenic bacteria from human dental plaque." Applied and Environmental Microbiology 54, no. 2 (1988): 600–603. http://dx.doi.org/10.1128/aem.54.2.600-603.1988.
Full text
8
van der Veen, M. H., R. Z. Thomas, M. C. D. N. J. M. Huysmans, and J. J. de Soet. "Red Autofluorescence of Dental Plaque Bacteria." Caries Research 40, no. 6 (2006): 542–45. http://dx.doi.org/10.1159/000095655.
Full text
9
Waty, Syahdiana, and Nurul Hidayah. "Identification of Bacteria in Dental Plaque." Contagion: Scientific Periodical Journal of Public Health and Coastal Health 7, no. 1 (2025): 1. https://doi.org/10.30829/contagion.v7i1.21578.
Full textAbstract:
<div><table cellspacing="0" cellpadding="0" align="left"><tbody><tr><td align="left" valign="top"><p><em>Oral health has an important role in overall body health. This study aims to evaluate the antibacterial efficacy of toothpaste with cinnamon ethanol extract against Streptococcus bacteria in vivo, analyze changes in the number of bacterial colonies before and after using toothpaste, and identify the type of Streptococcus bacteria in dental plaque. This pure experimental research was conducted at the Pharmacy Laboratory of the Poltekkes Kemenkes Medan and the Microbiology Laboratory of the Faculty of Medicine, University of North Sumatra. Samples included cinnamon extract, toothpaste formulation with 12.5% extract concentration, and dental plaque from 40 respondents. Data analysis used descriptive univariate test with SPSS 22.0 application. Results showed Gram-positive bacterial infections, especially Rothia dentocariosa (24%), dominated dental plaque, followed by Streptococcus mitis (16.4%). The use of cinnamon-active toothpaste was able to significantly reduce the number of bacterial colonies, especially at high concentrations. In addition, active compounds in cinnamon extracts such as cinnamaldehyde and eugenol showed the ability to damage bacterial cell walls and inhibit biofilm formation. Gargling was also shown to be effective in reducing bacterial colonies by clearing plaque and food debris. The conclusion of this study suggests that Gram-positive bacterial infections in dental plaque require special attention in management with appropriate antibiotics, while gargling and the use of cinnamon-based antimicrobial agents can be an effective preventive strategy. These findings support the development of natural ingredient-based oral health products to improve infection prevention and the quality of oral health care</em><em>.</em><em></em></p><p><em> </em></p></td></tr></tbody></table></div><strong><em>Keywords: Oral Health, Streptococcus, Cinnamon, Antibacterial, Dental Plaque, Gargling</em></strong>
10
Abreu-Villela, Paula, Mario Ferraro, Renata R. Rodrigues, et al. "Ozone Therapy in the Prevention of Dental Plaque Formation in Dogs." Journal of Veterinary Dentistry 38, no. 1 (2021): 18–23. http://dx.doi.org/10.1177/08987564211013920.
Full textAbstract:
This study aims to assess ozonized mineral oil ointment application as an antiplaque therapy for dogs. Domestic healthy dogs received dental scaling and polishing under general anesthesia. Under standard feeding and homecare during 7 days, 20 dogs were randomly placed into 2 different groups for dental treatment. The control group (CG) was given a single placebo application and the ozone group (O3G) received daily ozonized ointment application. The average age (CG = 4.4; O3G = 5.7 years old), body weight (CG = 15.7; O3G = 15.3 kg) and the gingivitis index obtained on the first day (D0) allowed initial homogeneity between the groups. The dental plaque index, including clinical and computerized analysis on the seventh day, was obtained from the buccal aspect of specific dental locations. Both analyses revealed significant statistical association between daily application of ozone and antiplaque effect. There was no evidence of toxicity during the study. These results suggest that ozone therapy may be an efficient adjuvant to conventional periodontal treatment in decreasing initial dental plaque formation.
Dissertations / Theses on the topic "Bacteria Dental plaque Ozone"
1
McInnes, James Christopher. "Low-frequency acoustic energy, cavitation, and their effects on bacteria /." Thesis, Connect to this title online; UW restricted, 1992. http://hdl.handle.net/1773/8041.
Full text
2
Fernandes, Clarissa Pessoa. "Molecular analysis of oral bacteria in dental biofilm and atherosclerotic plaques of patients with vascular disease." Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9568.
Full textAbstract:
CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>Over the past few years, the involvement between oral pathogens and vascular disease has been investigated, with growing attention to the pathogenesis and progression of atherosclerosis. Oral bacteria have been detected in atherosclerotic plaques at a variable frequency; however, the connection between oral health and vascular and oral bacterial profiles of these patients is not clearly established. The aim of this study was to evaluate the presence of oral bacteria DNA in the mouth and atherosclerotic plaques, in addition to assess the patientâs caries and periodontal disease history. Thirty samples of supragingival and subgingival plaque, saliva and atherosclerotic plaques of 13 patients with carotid stenosis or aortic aneurysm were evaluated, through Real Time Polymerase Chain Reaction, for the presence/absence of Streptococcus mutans, Prevotella intermedia, Porphyromonas gingivalis and Treponema denticola. For edentulous patients, the variables of supragingival and subgingival plaques were not considered. All patients were submitted to oral exams using the DMTF (decayed, missing and filled teeth) and PSR (Periodontal Screening and Recording) indexes for dental and periodontal evaluation, respectively, and histopathological analysis of the atherosclerotic plaques was performed. Most of the patients were edentulous (76.9%). Streptococcus mutans, Prevotella intermedia, Porphyromonas gingivalis and Treponema denticola were detected in 100.0%, 92.0%, 15.3% and 30.7% of the oral samples, respectively. Streptococcus mutans was the most prevalent targeted bacteria in atherosclerotic plaques (p<0,05), detected in 100% of the samples, followed by Prevotella intermedia (7.1%), and the vascular samples were negative for Porphyromonas gingivalis and Treponema denticola. There was a statistically significant difference (p<0,05) between the presence of Porphyromonas gingivalis and Treponema denticola in the oral cavity and vascular samples. In conclusion, Streptococcus mutans was found at a high frequency in oral and vascular samples, even in edentulous patients, and its presence in atherosclerotic plaques suggests the possible involvement of this bacteria with the disease progression.<br>Nos Ãltimos anos, a relaÃÃo entre patÃgenos orais e doenÃa vascular tem sido investigada, com crescente atenÃÃo para a etiopatogÃnese e progressÃo da aterosclerose. BactÃrias orais tÃm sido detectadas em placas aterosclerÃticas, com variÃvel frequÃncia, porÃm, a relaÃÃo entre saÃde bucal e perfis bacterianos vasculares e orais dos pacientes nÃo està claramente estabelecida. Foi objetivo deste estudo avaliar a presenÃa de DNA de bactÃrias orais na boca e placas aterosclerÃticas, alÃm de avaliar histÃrico de cÃrie e doenÃa periodontal dos pacientes. Trinta amostras de placa dental supragengival, subgengival, saliva, e placas aterosclerÃticas de 13 pacientes com estenose de carÃtida ou aneurisma de aorta foram avaliadas, atravÃs de ReaÃÃo em Cadeia da Polimerase em Tempo Real, para presenÃa/ausÃncia de Streptococcus mutans, Prevotella intermedia, Porphyromonas gingivalis e Treponema denticola. Para pacientes desdentados totais, nÃo foram consideradas as variÃveis de placa supragengival e subgengival. Todos os pacientes foram submetidos a exames de CPO-D (dentes permanentes cariados, perdidos e obturados) e PSR (registro periodontal simplificado) para avaliaÃÃo dentÃria e periodontal, respectivamente, bem como anÃlise histopatolÃgica das placas aterosclerÃticas. A maioria dos pacientes eram edÃntulos (76,9%). Streptococcus mutans, Prevotella intermedia, Porphyromonas gingivalis e Treponema denticola foram detectados em 100,0%, 92,0%, 15,3% e 30,7% das amostras orais, respectivamente. O micro-organismo mais prevalente em placas aterosclerÃticas foi o Streptococcus mutans (p<0,05), presente em 100,0% das amostras, seguido de Prevotella intermedia (7,1%), e as amostras vasculares foram negativas para Porphyromonas gingivalis e Treponema denticola. Observou-se diferenÃa estatisticamente significante (p<0,05) com relaÃÃo à presenÃa de Porphyromonas gingivalis e Treponema denticola em cavidade oral e amostra vascular. Em conclusÃo, Streptococcus mutans foi encontrado em alta frequÃncia em amostras orais e vasculares, mesmo de pacientes desdentados, e sua presenÃa em placas aterosclerÃticas sugere o possÃvel envolvimento desse patÃgeno na progressÃo da doenÃa.
3
Oliveira, Francisco Artur Forte. "Molecular analysis of oral bacteria in dental plaque, saliva and cardiac valve of patients with cardiovascular disease." Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9733.
Full textAbstract:
FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico<br>CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>Over the past few years, there has been increasing evidence of the effect of the oral health over the general health of individuals, supported by a series of biological and epidemiological studies that show a relation between the mouth and many diseases, including cardiovascular diseases. Structural deficiencies and functional abnormalities of heart valves represent an important cause of cardiovascular morbidity and mortality in Brazil, and a few defects have been recently associated with infectious agents. The aim of this study was to identify cariogenic and periodontopathogenic bacteria in dental plaque, saliva and heart valves, without clinical endocarditis, of patients with heart valve diseases, and correlate these findings with the oral health status of the patients. Oral exams using the DMTF (decayed, missing and filled teeth) and PSR (Periodontal Screening and Recording) indexes to evaluate caries and periodontal disease, respectively, were performed. Samples of supragingival and subgingival dental plaque, saliva and cardiac valves were evaluated, through Real Time Polymerase Chain Reaction, for the presence of DNA of Streptococcus mutans (S. mutans), Prevotella intermedia (P. intermedia), Porphyromonas gingivalis (P. gingivalis) and Treponema denticola (T. denticola). A total of 114 samples were collected from 42 patients with a mean age of 55.6  13.8 years. The average number of missing teeth due to caries was 23.52  9.41 teeth per patient, and according to the highest score of periodontal disease observed for each patient, excluding edentulous patients (44.0%), periodontal pockets over 4mm (43.4%) and dental calculus (34.7%) were detected in a higher number of patients. The molecular analysis of the oral samples revealed high frequency of S. mutans and P. intermedia in supragingival dental plaques, subgingival dental plaques and saliva of dentate and edentulous patients (variation 60.0% - 100.0%), while P. gingivalis and T. denticola were detected in a smaller number of oral samples (variation 17.6% - 64.0%). The microorganism most frequently detected in heart valve samples was the S. mutans (89.3%), followed by P. intermedia (19.1%), P. gingivalis (4.2%) e T. denticola (2.1%). Significant difference was observed between the frequency of P. intermedia, P. gingivalis and T. denticola in the heart valve and dental plaque, as oposed to S. mutans. The identification of oral bacteria, especially S. mutans, in heart valves of patients with a previous history of dental caries and gingivitis/periodontitis suggests the possible involvement of these pathogens in the etiopathogenesis of heart valve diseases.<br>Atualmente, cada vez mais se tem evidÃncias do efeito da condiÃÃo oral na saÃde geral dos indivÃduos, atravÃs de uma sÃrie de estudos epidemiolÃgicos e biolÃgicos que mostram uma relaÃÃo entre a boca e diversas doenÃas, incluindo as doenÃas cardiovasculares. Desordens estruturais e nas funÃÃes das vÃlvulas cardÃacas representam uma importante causa de morbidade e mortalidade cardiovascular no Brasil, sendo alguns processos, como a estenose aÃrtica degenerativa, mais recentemente associados a agentes infecciosos. O objetivo desta pesquisa foi identificar bactÃrias cariogÃnicas e periodontopatogÃnicas na placa dental, saliva e vÃlvulas cardÃacas, sem endocardite clÃnica, de pacientes com doenÃa valvar, correlacionando esses achados à condiÃÃo bucal dos indivÃduos. AvaliaÃÃo, quanto Ãs doenÃas cÃrie e periodontal, foi realizada, atravÃs dos Ãndices CPO-D (Dentes Permanentes Cariados, Perdidos e Obturados) e PSR (Registro Periodontal Simplificado), respectivamente. Amostras de placa dental supragengival, subgengival, saliva e vÃlvula cardÃaca foram coletadas para investigaÃÃo da presenÃa de DNA, atravÃs de PCR (ReaÃÃo em Cadeia de Polimerase) em tempo real, de Streptococcus mutans (S. mutans), Prevotella intermedia (P. intermedia), Porphyromonas gingivalis (P. gingivalis) e Treponema denticola (T. denticola). Um total de 114 amostras foi coletado de 42 pacientes com mÃdia de idade de 55.6  13.8 anos. A mÃdia de dentes perdidos devido à cÃrie, por paciente, foi em torno de 23.52  9.41 e, segundo o maior grau de doenÃa periodontal observado no indivÃduo, excluindo-se os pacientes desdentados totais (44.0%), bolsa superior a 4 mm (43.4%) e o cÃlculo dental (34.7%) esteve presente em um maior nÃmero de pacientes. A anÃlise molecular das amostras bucais revelou alta frequÃncia de S. mutans e P. intermedia nas placas supragengival, subgengival e saliva de pacientes dentados e desdentados (variando entre 60.0% e 100.0%), enquanto que P. gingivalis e T. denticola estiveram presentes em menor nÃmero de amostras bucais (variando entre 17.6% e 64.0%). O micro-organismo mais frequentemente encontrado nas amostras valvares foi o S. mutans (89.3%), seguido da P. intermedia (19.1%), P. gingivalis (4.2%) e T. denticola (2.1%). DiferenÃa significativa foi encontrada entre a presenÃa de P. intermedia, P. gingivalis e T. denticola na vÃlvula e na placa dental, diferentemente do S. mutans. A identificaÃÃo de bactÃrias orais, principalmente S. mutans, em vÃlvulas cardÃacas de pacientes com elevada experiÃncia prÃvia de cÃrie e ocorrÃncia de gengivite/periodontite, sugere o possÃvel envolvimento desses patÃgenos nas doenÃas valvares.
4
Abdul, Rahim Soha, and Carolina Robertsson. "Cariogenic potential of dental biofilm bacteria -support for caries as a polymicrobial disease." Thesis, Malmö högskola, Odontologiska fakulteten (OD), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-19830.
Full textAbstract:
Syfte: Tillväxt och syraproduktion undersöktes i olika suspensioner hos bakterier som är vanligt förekommande i den dentala biofilmen. Förekomst av buffringskapacitet till följd av proteolytisk aktivitet i artificiellt konsortium och oralt konsortium undersöktes också.Material och metod: Färska isolat av Actinomyces, Lactobacillus paracasei, Streptococcus mutans, Streptococcus intermedius och Streptococcus oralis inkuberades i tillväxtmedium med neutralt eller surt initialt pH, med eller utan glukos och/ eller urea. Tillväxten undersöktes genom mätning av optisk densitet vid 600nm. Syra- och alkaliproduktion mättes med pH-meter.Resultat: L. paracasei och S. intermedius uppvisade en tillväxt oberoende av pH, och ett surare slut-pH i mediet med surt initialt pH jämfört med neutralt initialt pH. S. oralis och Actinomyces uppvisade större tillväxt vid neutralt initialt pH och hade en syraproduktion som var oberoende av initiala pH. Alla arter nådde ett slut-pH under kritiska pH för emaljen (5,5) oberoende av initialt pH. Tillväxten påverkades inte av glukos. I oralt konsortium var slut-pH högre i mediet med glukos och urea jämfört med i mediet med bara glukos. Konklusion: Alla arter uppvisade syraproduktion och syratolerans och kan sannolikt bidra till demineralisering av tandens hårdvävnad. Ytterligare studier med fler mätvärden behövs för att utreda kariogeniciteten hos dessa arter med större tillförlitlighet. Alkaliproduktion hos sackarolytiska arter kan eventuellt påverka plackets pH. Ytterligare studier behövs för att undersöka förekomsten av alkaliproduktion hos sackarolytiska arter i förhållande till karies och dess effekt på pH i biofilmen.<br>Aim: To investigate dental biofilm bacteria for growth and acid production in different environments. The occurrence of inherent buffering capacity by alkali production in an artificial consortium and oral consortium was also examined.Materials and method: Fresh isolates of Actinomyces, Lactobacillus paracasei, Streptococcus mutans, Streptococcus intermedius and Streptococcus oralis were incubated in growth media with neutral or acidic initial pH and with and without glucose and/ or urea. Growth was monitored by measuring optical density at 600nm. Acid and alkali production was monitored using a pH meter. Results: L. paracasei and S. intermedius showed growth independent of pH and a more acidic final pH at acidic than neutral initial pH. S. oralis and Actinomyces showed a greater growth at neutral pH and had an acid production insensitive to an acidic environment. All species reached a final pH below the critical pH for enamel (5.5) independent of initial pH. Growth was unaffected by glucose. In oral consortium, the final pH was less acidic in the medium with glucose and urea compared to in the medium with only glucose.Conclusion: All species showed acidic and aciduric properties and may contribute to tooth demineralization. Further studies with a larger number of measurements are needed to assess the cariogenicity of these species with a higher reliability. Alkali production in saccharolytic species may affect the plaque pH. Further studies are needed to assess the occurrence of alkali production in saccharolytic species related to caries and its effects on the pH in the biofilm.
5
Matthews, Chad Robert. "Host Bacterial Interactions During Early Plaque Formation in Current and Never Smokers." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1274112198.
Full text
6
Neves, Beatriz GonÃalves. "Molecular detection of bacteria in dentinal carious lesions and in biofilm of children with different stages of early childhood caries." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=14164.
Full textAbstract:
Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>Early childhood caries (ECC) is considered a serious public health issue among children all over the world. However, many aspects should be explored about the oral microbiota related to the ECC progression and how the bacterial community modifies according to the dentine lesion activity. This thesis, composed by two chapters, aimed to investigate and quantify with quantitative polymerase chain reaction (qPCR) the following bacteria Actinomyces naeslundii, Bifidobacterium spp., Lactobacillus acidophilus, Streptococcus gordonii, Streptococcus mutans, as well as members of the groups Lactobacillus casei and Mitis on biofilm from pre-school children with different stages of early childhood caries progression (Chapter 1) and on active and inactive dentine carious lesions (Chapter 2), and also to verify the association of these microorganisms on the process of health or disease. The sample consisted on preschool children aged between 2 and 5 years from nurseries and public preeschools in Fortaleza-CE. The children were examined for caries diagnosis with ICDAS II index (International Caries Detection Assessment System), and the Nyvad criteria, in order to evaluate prevalence and caries activity. The supragingival biofilm collection was taken from 75 children, who were divided in three groups according to the ICDAS II: CF (caries free) (n=20), ECL (presence of enamel caries lesion) (n=17) and DCL (presence of dentine caries lesion) (n=38). Samples of carious dentine were collected under rubber dam isolation of 56 lesions of dentine affected by caries, being 17 inactive and 39 active. The DNA of all the collected samples was extracted and purified, then tested for the presence of the formerly mentioned bacterial species/groups through qPCR. The quantity of bacteria was compared through the Kruskal-Wallis and Mann-Whitney tests. Besides, the association between the presence of bacteria and ECC was analyzed through the Chi-square test, with a 5% significance level and the multiple logistic regression was applied. Bacteria from the group L. casei and L. acidophilus presented low detection on biofilm of all evaluated groups. The presence of S. mutans and Bifidobacterium spp. showed a strong association with dental caries progression on the biofilm from children with dentine lesions with odds ratio of 21,5 and 5,9; respectively. On active dentine lesions, concentrations of Bifidobacterium spp. and species from the Lactobacillus casei group were significantly higher when compared to the inactive lesions (p<0.05). The levels of Actinomyces naeslundii, Streptococcus gordonni and species from Mitis group were not significantly different among biofilm groups as well as comparing dentine lesions. In conclusion, the microbial profile from biofilm samples presented differences on the proportion of acidogenic and aciduric bacteria with dental caries progression. The presence of Bifidobacterium spp. and S. mutans presented a strong association with the development of the more advanced stages of ECC. Regarding the activity of dentine lesions, higher detection levels of the group L. casei and Bifidobacterium spp. showed an important role of these bacteria in the dentine caries activity.<br>A cÃrie precoce da infÃncia (CPI) Ã considerada um grave problema de saÃde pÃblica em crianÃas prÃ-escolares em todo mundo. No entanto, muitos aspectos ainda devem ser explorados acerca da microbiota oral relacionada com a progressÃo da CPI e como a comunidade bacteriana se modifica de acordo com a atividade da lesÃo dentinÃria. Esta tese, constituÃda de dois capÃtulos, teve como objetivo identificar e quantificar atravÃs da tÃcnica de reaÃÃo em cadeia da polimerase quantitativa (qPCR) as bactÃrias Actinomyces naeslundii, Bifidobacterium spp., Lactobacillus acidophilus, Streptococcus gordonii, Streptococcus mutans, bem como espÃcies dos grupos Lactobacillus casei e Mitis em biofilme de crianÃas prÃ-escolares com diferentes estÃgios de progressÃo da cÃrie precoce da infÃncia (CapÃtulo 1) e em lesÃes cariosas dentinÃrias ativas e inativas (CapÃtulo 2) e ainda verificar a associaÃÃo destes microrganismos ao processo de saÃde ou de doenÃa. A amostra consistiu em prÃ-escolares com idade entre 2 e 5 anos de idade que frequentavam creches e escolas pÃblicas de Fortaleza-CE. As crianÃas foram examinadas com o uso de Ãndices visuais ICDAS II (International Caries Detection Assessment System) e Nyvad, a fim de avaliar a prevalÃncia e atividade de cÃrie. A coleta de biofilme supragengival foi realizada em 75 crianÃas, as quais foram agrupadas de acordo com Ãndice ICDAS II em trÃs grupos: CF (livres de cÃrie) (n=20), ECL (presenÃa de lesÃes de cÃrie em esmalte) (n=17) e DCL (presenÃa de lesÃes de cÃrie em dentina) (n=38). Amostras de dentina cariada foram coletadas sob isolamento absoluto de 56 lesÃes cariosas dentinÃrias, sendo 17 inativas e 39 ativas. O DNA de todas as amostras coletadas foi extraÃdo e purificado e, em seguida, testado para a presenÃa das espÃcies/grupos bacterianos acima citados atravÃs de qPCR. A quantidade das bactÃrias foi comparada pelos testes Kruskal-Wallis e Mann-Whitney. AlÃm disso, a associaÃÃo da presenÃa de bactÃrias e CPI foi analisada atravÃs do teste Qui-quadrado, com nÃvel de significÃncia de 5% e aplicado a regressÃo logÃstica mÃltipla. BactÃrias L. acidophilus e do grupo L. casei apresentaram baixa detecÃÃo no biofilme de todos os grupos avaliados. A presenÃa de S. mutans e Bifidobacterium spp. mostrou forte associaÃÃo com a progressÃo da doenÃa no biofilme de crianÃas com lesÃes dentinÃrias com âodds ratioâ de 21,5 e 5,9, respectivamente. Em lesÃes dentinÃrias ativas, concentraÃÃes de Bifidobacterium spp. e bactÃrias do grupo L. casei foram significativamente maiores quando comparadas Ãs lesÃes inativas (p<0.05). Os nÃveis de A. naeslundii, bactÃrias do grupo Mitis e S. gordonni nÃo apresentaram diferenÃa significativa entre os grupos de biofilme, assim como nas lesÃes dentinÃrias. Conclui-se que as amostras de biofilme apresentaram alteraÃÃo na proporÃÃo de bactÃrias acidogÃnicas e acidÃricas com a progressÃo da doenÃa cÃrie. A presenÃa de Bifidobacterium spp. e S. mutans apresentou forte associaÃÃo com os estÃgios mais avanÃados da CPI. Em relaÃÃo Ãs lesÃes dentinÃrias, o aumento da concentraÃÃo de bactÃrias Bifidobacterium spp. e do grupo L. casei evidenciou um papel importante destas bactÃrias na atividade de lesÃes dentinÃrias.
7
Parida, Sheetal. "Isolation, characterization and stress response of dental plaque forming bacteria." Thesis, 2011. http://ethesis.nitrkl.ac.in/2310/1/thesis(sheetu).pdf.
Full textAbstract:
The current work deals with the studies of isolation and characterization of oral biofilm forming bacteria. The major constituent of biofilm other than bacterial cells is the Extracellular Polymeric Slime matrix (EPS) which is secreted by the bacterial cells themselves. Physical properties of biofilms like attachment, mechanical strength, antibiotic resistance can be attributed to EPS matrix. In this study, attempts were made to study the stress response of bacteria isolated and their chemotactic response. Further attempts were made to characterize the EPS matrix by chemical as well as spectroscopic studies. The bacterial strains isolated were characterized to be Staphylococcus aureus, Staphylococcus salivarius, Streptococcus mitis, Streptococcus oralis, Bacillus subtilis by biochemical identification method. SEM micrographs taken confirmed the formation of biofilm. It was observed that cell attachment was maximum when glucose was used as the sole carbon source. Test for biofilm formation in presence of metal salts of Iron and Zinc showed moderate to high inhibition of film formation. The chemotaxis studies carried out in present work indicates the poor response of two strains towards fructose and sucrose. The EPS characterization result indicated the presence of a macromolecular complex constituting of carbohydrate, protein, lipids and nucleic acids.
8
Knight, Geoffrey Macdonald. "The pharmacological management of dentine to protect against plaque microorganism degradation." Thesis, 2008. http://hdl.handle.net/2440/50514.
Full textAbstract:
Background There is a transition towards minimally invasive restorative techniques in restorative dentistry based upon reducing bacterial viability and encouraging remineralization of caries infected tissue. To improve the predictability of the antibacterial and remineralization potential of carious dentine by either the application of medicaments or placement of restorative materials that encourage remineralization would be a significant benefit in disease management.
Materials and Methods An experimental model was developed using a chemostat for in vitro analysis of the effects of silver fluoride followed by potassium iodide (AgF/KI) and ozone treatment on non demineralized and demineralized dentine.
Electron Probe Micro Analysis (EPMA) and Scanning Electron Microscopy (SEM) on the treated dentine were conducted to investigate ion transfer, and biofilm formation. Bacteria growth was measured by optical density.
An in vitro caries model using a chemostat was developed to determine the ability of glass ionomer cement and composite resin to inhibit dentinal degradation in adjacent dentine and to measure ion exchange at the restorative interface.
Tests were made to determine the bond strength between dentine and glass ionomer cement after application of silver fluoride to the surface of the dentine.
Results S. mutans migrated through all dentine samples. Samples treated with AgF/KI had significantly lower optical densities than the corresponding controls. Optical density readings were significantly lower in demineralized dentine treated with AgF/KI than non demineralized dentine. There were lower but not significant differences in the optical density readings between ozonated and non ozonated dentine.
An S. mutans biofilm covered all control discs. No biofilm was detected on discs treated with AgF/KI and these discs were significantly more resistant to further demineralization than the control discs. Detectable amounts of silver and fluoride were found up to 450 μm in the AgF and AgF/KI sections.
Ozone infusion prevented S. Mutans and L. acidophilus biofilm formation on all the treated dentine samples, biofilm was present on all control specimens.
There was calcium and phosphorus present in all auto cure glass ionomer cements to a depth beyond 50 microns. Aluminium and strontium ions were also present in dentine except strontium subjacent to Ketac Molar restorations.
Fluoride uptake was significantly higher under glass ionomer cement restorations where the dentine was pretreated with AgF/KI compared to non treated specimens. Silver and iodine deposits were present in demineralized dentine treated with AgF/KI.
Calcium and phosphorus levels up to 130 microns from the restorative interface were similar to non demineralized dentine adjacent to auto cure glass ionomer cements and half that adjacent to composite resin. There was significant surface degradation in auto cure glass ionomer cements compared to composite resin.
Washing away the AgF/KI precipitate produced higher bond strengths to dentine than samples where the precipitate remained.
Conclusions Under the conditions of these in vitro studies, the application of AgF/KI and ozone pharmacologically reduces the initiation and rate of dentine caries.
Glass ionomer cements were shown to protect dentine from experimental carious degradation and assist with remineralization. AgF/KI application enhances remineralization beneath glass ionomers and does not interfere with bond strengths.<br>Thesis (Ph.D.) - University of Adelaide, Dental School, 2008
9
Knight, Geoffrey Macdonald. "The pharmacological management of dentine to protect against plaque microorganism degradation." 2008. http://hdl.handle.net/2440/50514.
Full textAbstract:
Background There is a transition towards minimally invasive restorative techniques in restorative dentistry based upon reducing bacterial viability and encouraging remineralization of caries infected tissue. To improve the predictability of the antibacterial and remineralization potential of carious dentine by either the application of medicaments or placement of restorative materials that encourage remineralization would be a significant benefit in disease management. Materials and Methods An experimental model was developed using a chemostat for in vitro analysis of the effects of silver fluoride followed by potassium iodide (AgF/KI) and ozone treatment on non demineralized and demineralized dentine. Electron Probe Micro Analysis (EPMA) and Scanning Electron Microscopy (SEM) on the treated dentine were conducted to investigate ion transfer, and biofilm formation. Bacteria growth was measured by optical density. An in vitro caries model using a chemostat was developed to determine the ability of glass ionomer cement and composite resin to inhibit dentinal degradation in adjacent dentine and to measure ion exchange at the restorative interface. Tests were made to determine the bond strength between dentine and glass ionomer cement after application of silver fluoride to the surface of the dentine. Results S. mutans migrated through all dentine samples. Samples treated with AgF/KI had significantly lower optical densities than the corresponding controls. Optical density readings were significantly lower in demineralized dentine treated with AgF/KI than non demineralized dentine. There were lower but not significant differences in the optical density readings between ozonated and non ozonated dentine. An S. mutans biofilm covered all control discs. No biofilm was detected on discs treated with AgF/KI and these discs were significantly more resistant to further demineralization than the control discs. Detectable amounts of silver and fluoride were found up to 450 μm in the AgF and AgF/KI sections. Ozone infusion prevented S. Mutans and L. acidophilus biofilm formation on all the treated dentine samples, biofilm was present on all control specimens. There was calcium and phosphorus present in all auto cure glass ionomer cements to a depth beyond 50 microns. Aluminium and strontium ions were also present in dentine except strontium subjacent to Ketac Molar restorations. Fluoride uptake was significantly higher under glass ionomer cement restorations where the dentine was pretreated with AgF/KI compared to non treated specimens. Silver and iodine deposits were present in demineralized dentine treated with AgF/KI. Calcium and phosphorus levels up to 130 microns from the restorative interface were similar to non demineralized dentine adjacent to auto cure glass ionomer cements and half that adjacent to composite resin. There was significant surface degradation in auto cure glass ionomer cements compared to composite resin. Washing away the AgF/KI precipitate produced higher bond strengths to dentine than samples where the precipitate remained. Conclusions Under the conditions of these in vitro studies, the application of AgF/KI and ozone pharmacologically reduces the initiation and rate of dentine caries. Glass ionomer cements were shown to protect dentine from experimental carious degradation and assist with remineralization. AgF/KI application enhances remineralization beneath glass ionomers and does not interfere with bond strengths.<br>http://proxy.library.adelaide.edu.au/login?url= http://library.adelaide.edu.au/cgi-bin/Pwebrecon.cgi?BBID=1344616<br>Thesis (Ph.D.) - University of Adelaide, Dental School, 2008
10
ZHANG, MING-REN, and 張明仁. "The number change of dental plaque bacteria and salivary streptococus mutans in patients before and during orthodontic treatment." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/46781918581390514562.
Full textBooks on the topic "Bacteria Dental plaque Ozone"
1
Silk, Lois Jane. The effects of zinc on the physiology and adhesion of dental plaque bacteria. University of Manchester, 1994.
Find full textBook chapters on the topic "Bacteria Dental plaque Ozone"
1
Hashimoto, Kazuhiro, Takuichi Sato, Hidetoshi Shimauchi, and Nobuhiro Takahashi. "Profiling of dental plaque microflora on root caries lesions and the protein-degrading activity of these bacteria." In Interface Oral Health Science 2009. Springer Japan, 2010. http://dx.doi.org/10.1007/978-4-431-99644-6_63.
Full text
2
P. Balolong, Marilen, and Michael Antonio F. Mendoza. "Understanding Oral Diseases: Exploring Opportunities from Filipino Oral Microbiome Research." In Dental Caries. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.94751.
Full textAbstract:
The human mouth houses the second most diverse microbial community in the body, with almost 700 species of bacteria colonizing the hard surfaces of teeth and the soft tissues of the oral mucosa. To compete in the relatively exposed oral cavity, resident microbes must avoid being replaced by newcomers. This selective constraint, coupled with pressure on the host to cultivate a beneficial microbiome, has rendered a commensal oral microbiota that displays colonization resistance, protecting the human host from invasive species, including pathogens. Current control of dental plaque-related diseases is non-specific and is centered on the removal of plaque by mechanical means. Several new methods based on the modulation of the microbiome that aim at maintaining and re-establishing a healthy oral ecosystem have been developed and has greatly expanded our knowledge of the composition and function of the oral microbiome in health and disease. Promoting a balanced microbiome is therefore important to effectively maintain or restore oral health. This review provides an updated body of knowledge on oral microbiome in health and disease and discusses the implications for modern-day oral healthcare. Filipino Oral Microbiome Research to develop a policy framework for microbiome-based management of dental diseases and opportunities will be discussed.
3
Cascarini, Luke, Clare Schilling, Ben Gurney, and Peter Brennan. "Oral medicine." In Oxford Handbook of Oral and Maxillofacial Surgery. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199583294.003.0048.
Full textAbstract:
Common dental diseases 212 Oral mucosal infections 216 Oral ulceration 218 Blistering diseases 220 White, red, and pigmented lesions 222 Oral cancer 224 Oral manifestations of systemic diseases 226 Miscellaneous oral conditions 228 Dental caries is the result of acid-producing bacteria (Streptococcus mutans and others) creating a microenvironment, dental plaque, where sugar is metabolized and acid is a by-product. The acid demineralizes the tooth. The process is reversible when the pH rises and saliva, which is rich in Ca...
4
Sethi, Poonam, and Yuva Srinivasan. "NANO PARTICLES OF NEEM –AZADIRACHTA INDICA A. JUSS TWIGS POWDER AGAINST ORAL MICROBIOME." In Futuristic Trends in Agriculture Engineering & Food Sciences Volume 3 Book 21. Iterative International Publisher, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bcag21p1ch5.
Full textAbstract:
A dental plaque is a home for many harmful bacteria which reside in causing cavities and disease aggregation. Microscopic evaluation of these plaque forming a biofilm from samples- clinical isolates indicated that Streptococcus mutans accounts for nearly 80% of the colonization. Chew sticks - twigs of neem (Azadirachta indica) were tried and later nanoparticles were screened and nanoparticles are more promising against Streptococcus at a concentration of 10 µg.An ancient remedy for tooth ache and other infections, nanoparticles of these chew stick powder was more promising than the powder itself.
5
Hussein, Fatma. "Natural Anti-cariogenic Agents." In Natural Conservative Dentistry: An Alternative Approach to Solve Restorative Problems. BENTHAM SCIENCE PUBLISHERS, 2024. http://dx.doi.org/10.2174/9789815223194124010005.
Full textAbstract:
Tooth decay is primarily caused by demineralization resulting from acids secreted by bacteria, especially Streptococcus mutans and lactobacillus, which ferment dietary carbohydrates. This occurs in plaque biofilms, which attach to the surfaces of the tooth and become laden with bacteria. Thus, over time, dental caries result from the interaction of three main contributing factors: a diet containing carbohydrates, cariesproducing bacteria, as well as sensitive tooth structure. The use of an antibacterial strategy for treating caries has evolved as a result of (1) identifying certain types of the oral microbiome as the main cariogenic flora and (2) increasing the knowledge of the specific ecology of these cariogenic florae. Combined with this concept, control, and prevention of caries have been sought by reducing the number of bacteria colonizing. Reducing bacterial populations or completely eradicating them from the oral flora would provide an additional reason to prevent dental caries. Several undesirable sideeffects of conventional antimicrobial agents include tooth discoloration and the emergence of bacterial resistance. These side effects stimulate the search for alternative natural anti-microbial agents.
6
Galuscan, Atena, Daniela Jumanca, and Ramona Dumitrescu. "Advancements in Preventive Strategies and Enamel Regeneration: Navigating the Complexities of Dental Care in the Age of Technology." In Enamel and Dentin-Pulp Complex [Working Title]. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.114143.
Full textAbstract:
In our technology-driven world, rising dental injuries have prompted re-evaluation of treatment methods. Key focuses include preventing carious lesions through early detection and good oral hygiene. Precise diagnostic tools enable tailored treatments, such as fluoridation, sealing, pH-adjusting diets, resin infiltration, and ozone remineralization. Dental enamel is crucial for tooth function. Researchers aim to replicate its complex structure for biocompatible materials. Hydroxyapatite’s unique properties are vital for hard tissues like bones, enamel, and dentin. Enamel development involves ameloblasts in pre-eruptive and post-eruptive stages. Saliva aids post-eruptive maturation but can lead to bacterial adhesion and enamel demineralization. Preventing enamel demineralization hinges on ion transport and critical pH levels, while low calcium levels impact enamel cells. Dietary sugars interact with bacteria, causing demineralization, but saliva aids remineralization. Caries risk depends on factors like diet, oral hygiene, and tooth morphology. Personalized approaches like Caries Management by Risk Assessment (CAMBRA) for caries risk assessment (CRA) are crucial. Traditional enamel protection methods involve fluoride and dental sealants, but concerns exist about fluoride toxicity and bacterial resistance. Modern alternatives include resin infiltration for early caries, argon laser technique for lesion protection, and ozone therapy to combat decay, offering noninvasive options for enamel care.
7
Kidd, Edwina, and June Nunn. "Managing caries in enamel." In The Prevention of Oral Disease. Oxford University PressNew York, NY, 2003. http://dx.doi.org/10.1093/oso/9780192632791.003.0005.
Full textAbstract:
Abstract It is important to understand what caries is, to follow the logic of its suggested management. Dental caries is a process which may take place on any tooth surface in the oral cavity where a microbial biofilm (dental plaque) is allowed to develop over a period of time. Formation of the biofilm is a natural physiological process (see Chapter 4). It is important to remember that the biofilm is not a haphazard collection of micro-organisms, but a community with a collective physiology, which can solve the specific physico-chemical problems posed by the environment at the site. The bacteria in the biofilm are always metabolically active, causing minute fluctuations in pH. These may cause a net loss of mineral from the tooth when the pH is dropping. This is called demineralization. Alternatively, there may be a net gain of mineral when the pH is increasing.
8
Daly, Blánaid, Paul Batchelor, Elizabeth Treasure, and Richard Watt. "Sugars and caries prevention." In Essential Dental Public Health. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199679379.003.0017.
Full textAbstract:
Dental caries remains the single most important oral condition treated by the dental profession on a daily basis. From a public health perspective, the prevention of caries is still therefore a major challenge. As outlined in Chapter 4 , before effective prevention can be delivered the cause of the condition needs to be fully understood. In addition, the disease process should be clear. This chapter will review the evidence on the aetiology of dental caries and present an overview of preventive measures that can be adopted at an individual clinical level, as well as community wide. Dental caries occurs because of demineralization of enamel and dentine structure by organic acids formed by oral bacteria present in dental plaque through the anaerobic metabolism of dietary sugars. The caries process is influenced by the susceptibility of the tooth surface, the bacterial profile, the quantity and quality of saliva, and the presence of fluoride which promotes remineralization and inhibits the demineralization of the tooth structure. Caries is a dynamic process involving alternating periods of demineralization and remineralization. However, the majority of lesions in permanent teeth advance relatively slowly, with an average lesion taking at least 3 years to progress through enamel to dentine (Mejare et al. 1998). In populations with low DMF/dmf levels, the majority of carious lesions are confined to the occlusal surfaces of the molar teeth. At higher DMF/dmf levels, smooth surfaces may also be affected by caries (Sheiham and Sabbah 2010). Many different terms have been used to name and classify sugars. This has caused a degree of confusion amongst both the general public and health professionals. In recognition of this, an expert UK government committee—Committee on Medical Aspects of Food Policy (COMA)—has recommended a revised naming system, which has now become the standard classification of sugars in the UK (Department of Health 1989). The COMA classification is based upon where the sugar molecules are located within the food or drink structure. Intrinsic sugars are found inside the cell structure of certain unprocessed foodstuffs, the most important being whole fruits and vegetables (containing mainly fructose, glucose, and sucrose).
9
Goswami, Mousumi, and Palak Jain. "Topical Application of Fluorides." In Illustrated Pediatric Dentistry - Part 3. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815080803123030019.
Full textAbstract:
Fluoride is present in natural water sources and occurs as an ionic form of fluorine trace element. It is a safe and effective agent used primarily to prevent dental caries, especially in children. Fluoride can remineralize calcium hydroxyapatite crystals in enamel by forming acid-resistant calcium fluorapatite crystals. It can be administered topically as well as systemically. Topical fluorides form a vital part of preventive oral health programs and help promote enamel remineralization, inhibit bacterial metabolism, and reduce the growth of bacteria in plaque. Various methods for delivering topical fluorides include self-applied toothpaste, gels, mouthwashes, professionally applied varnishes, and other gel forms. This chapter provides an overview of the different topically applied fluoride agents, their mechanism of action and the recommendations for their use in children.
10
Rakašević, Dragana, and Dragana Gabrić. "The Effect of Implant Surface Design and Their Decontamination Methods in Peri-Implantitis Treatment." In Dentistry. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.99753.
Full textAbstract:
Different titanium implant surfaces are prone to microbial colonization and dental plaque accumulation contributing to peri-implantitis pathogens adherence and growth. In conjunction with systemic, local, and implant-based factors such as micro- and macro-designs, implant location, and region, these pathogens can cause a complex inflammatory response resulting in peri-implantitis and deleterious bone loss. Implant surface decontamination plays a crucial and important step in peri-implantitis therapy. The primary goal of implant surface decontamination is to eradicate bacteria and their products outside of implant pits and grooves reducing inflammation and promoting tissue regeneration and/or reparation. Various implant surface decontamination methods such as mechanical, chemical or physical methods have been proposed to prevent bacterial resistance development or/and surface damage. The chapter aimed to assess if implant microdesign could influence the decontamination method choice.
Conference papers on the topic "Bacteria Dental plaque Ozone"
1
H. Shareef, Suhayla, Chiman H. Saeed, and Pshtiwan D. Majeed. "Antimicrobial activity of Syzigium Aromaticum (Clove) and Salvadora Persica (Miswak) Against Dental Plague Pathogens." In 4th International Conference on Biological & Health Sciences (CIC-BIOHS’2022). Cihan University, 2022. http://dx.doi.org/10.24086/biohs2022/paper.626.
Full textAbstract:
Some periodontal bacteria on tooth plaque were shown to be sensitive to extracts from Syzigium aromaticum and Salvadora persica. Our study was an assessment of the antimicrobial effect of Syzigium aromaticum and Salvadora persica extracts against dental plague pathogens. Thirty-five 35 oral swabs were taken from the patients who had the dental plague and isolated microorganisms were identified by standard bacteriological methods. Syzigium aromaticum and Salvadora persica extracts were tested against dental plaque microorganisms on Muller Hinton agar, antimicrobial activity of two extracts were done by paper disks-diffusion technique at 50% concentration and characterized by inhibition zones. Forty-six (46) microorganisms were isolated from 35 dental plague samples,18 isolates were Staphylococcus aureus, 3 isolates were Staphylococcus epidermidis, 6 isolates were Streptococcus mutans, 12 isolates were Streptococcus viridans, 1 isolate each of Pseudomonas aeruginosa., Proteus spp., Bacillus spp., 2 isolates were Actinobacillus actinomycetemcomitans and 2 isolates were Candida albicans. The zones of inhibition for two different extracts were measured. According to the findings, Syzigium aromaticum and Salvadora persica have antibacterial and antifungal effects against gram-negative and gram-positive bacteria, as well as fungi. Our study has shown that Syzigium aromaticum and Salvadora persica extracts have antimicrobial efficacy, and concluded that the extracts have shown a greater effect on oral microorganisms and are recommended to be used for treatment and prevention against oral hygiene.
2
Tabirca, Sabin, Hassan Zaida, Edith Allen, Sharon Curtin, Claire Murphy, and Garreth Stack. "DENTLEARN PERIODONTICS: CLINICAL SKILL DEVELOPMENT FOR UNDERGRADUATE DENTAL STUDENTS." In eLSE 2013. Carol I National Defence University Publishing House, 2013. http://dx.doi.org/10.12753/2066-026x-13-185.
Full textAbstract:
Students in dental education are increasingly becoming technologically advanced, perhaps more than their teachers. Their communication is progressively becoming reliant on technology rather than a person to person path. They are also more reliant on educational web based resources to support their learning. Advances or development in interactive web based educational tools (IWET) will meet their expectations and allow for an on demand flexible delivery of educational material that supports their learning and allows vertical and horizontal integration within the syllabus. IWET have the added benefit of bridging the gap between theoretical knowledge and development of psychomotor skills. Interactive web based tools in dentistry are as valuable as other methods of traditional teaching. However, they should not replace the pedagogy but be complementary to it. Periodontology is the clinical, dental specialty that is concerned with the diagnosis and management of plaque bacteria-mediated inflammation in the supporting tissues around teeth. The complete removal of plaque-retaining calculus/tartar from all tooth surfaces is a crucial part of successful treatment. This calculus removal, be it above the gum margin (supragingival), or below the gum margin (subgingival), requires a psychomotor skill that may take years of practice to attain, particularly for subgingival calculus, where its removal relies on tactile sensation, and in effect is a blind procedure. This also requires the knowledge of and the use of various types of instruments, depending on the location in the mouth and whether the calculus is supragingival or subgingival. The initial stage of development of the skill requires repeated practice on clinical mannequins/simulators. Research collaboration between the Dental School and Hospital Cork and the Department of Computer Science at University College Cork saw the development of an interactive web-based educational tool and a phone application. The methodology employed in the development of these educational tools include a video recording of the clinical procedures for full mouth scaling with a visual narrative describing various seating positions of the dental clinician, instrument selection and application and a synchronized verbal description of the steps undertaken when engaging in a periodontal scaling procedure. These educational tools have been developed and will be made available for students to use during their practice on mannequins/simulators. DentLearn is a repository of interactive e-learning materials which can be populated dynamically with new content. The core of the e-learning tool is an e-learning content player that can display the video and the slides associated with a procedure in a synchronized manner. The player uses some recent Smile-based technologies that make the synchronization possible as well as it enhances the player controls with more visual elements. Furthermore, the player can swap between video and slides slides in the central panel for displaying the e-learning content. The repository contains at present only e-learning materials related with Periodontics teaching. However, it has some user friendly functions that allow for new content to be added to it. A scale down version of the repository was made available for mobile devices. A future aim is to evaluate the effectiveness of the interactive web-based tool and phone application as an educational support for dental students. Further plan is to apply this e-learning to other dental specialties in addition to the development of animation and simulation models that are virtually pressure sensitive, interactive and responsive.