Enamel Solubility Rate Measurements In Vivo on Naval Recruits

1976 ◽  
Vol 55 (5) ◽  
pp. 797-804 ◽  
Author(s):  
B.L. Lamberts ◽  
H.J. Keene ◽  
S. Levin
Keyword(s):  
Dental Caries ◽  
Great Lakes ◽  
Young Men ◽  
Tooth Surface ◽  
Caries Experience ◽  
Rate Data ◽  
Tooth Morphology ◽  
Two Samples

Enamel solubility rates were measured in vivo to depths of 1 to 2 micrometers in two samples of young men from the Great Lakes naval recruit population. No clearcut relationship could be established between enamel solubility rate and dental caries experience. Factors such as tooth morphology and tooth-surface debris affected the enamel solubility rate data.

scholarly journals The Dental Aesthetic Index and Its Association with Dental Caries, Dental Plaque and Socio-Demographic Variables in Schoolchildren Aged 12 and 15 Years

2021 ◽  
Vol 18 (18) ◽  
pp. 9741
Author(s):  
Paula Fernández-Riveiro ◽  
Nerea Obregón-Rodríguez ◽  
María Piñeiro-Lamas ◽  
Almudena Rodríguez-Fernández ◽  
Ernesto Smyth-Chamosa ◽  
...  
Keyword(s):  
Public Schools ◽  
Dental Caries ◽  
Old Age ◽  
Dental Plaque ◽  
Demographic Data ◽  
Demographic Variables ◽  
Caries Experience ◽  
Age Group ◽  
Cross Sectional ◽  
Two Samples

The Dental Aesthetic Index (DAI) was determined in 12- and 15-year-old schoolchildren to ascertain the prevalence of malocclusion and to assess its association with dental caries experience, dental plaque accumulation, and socio-demographic variables. We performed a cross-sectional study with a stratified two-stage sampling design. An oral health survey and oral examination were conducted, and socio-demographic data were recorded. The sample comprised 1453 schoolchildren aged 12 (868) and 15 (585). These two samples were analyzed separately because statistically significant differences were found: the 12-year-old age group displayed a higher frequency of schoolchildren who attended state-run public schools (p = 0.004) and belonged to a lower social class (p = 0.001); the 15-year-old age group registered higher levels of caries (p = 0.001) and lower levels of dental plaque (p < 0.001). The malocclusion was 9.5% higher (p = 0.001), and the global mean DAI score was likewise higher among the 12-year-olds (p < 0.001). The multivariate regression analysis not only showed that caries and dental plaque were the variables that were the most strongly associated with malocclusion, but that caries (OR = 1.5) and dental plaque (OR > 2) were also risk factors for malocclusion in both groups. In conclusion, this study revealed a higher prevalence of malocclusion and dental plaque at age 12. A higher risk of caries and dental plaque was found to be related to the presence of malocclusion in both age groups.

scholarly journals Anti-biofilm activities of a novel chimeolysin againstS. mutansin physiological and cariogenic conditions

2016 ◽  
pp. AAC.01872-16 ◽  
Author(s):  
Hang Yang ◽  
Yongli Bi ◽  
Xiaoran Shang ◽  
Mengyue Wang ◽  
Sara B. Linden ◽  
...  
Keyword(s):  
Dental Caries ◽  
Treated Group ◽  
Tooth Surface ◽  
Log Reduction ◽  
Colonization Model ◽  
Group A ◽  
Repeated Use ◽  
Susceptibility Tests

Streptococcus mutansoften survives as a biofilm on the tooth surface and contributes to the development of dental caries. We investigated the efficacy of ClyR, an engineered chimeolysin, againstS. mutansbiofilms in physiological and cariogenic conditions. Susceptibility tests showed that ClyR was active against all clinicalS. mutansisolates tested as well asS. mutansbiofilms that displayed resistance to penicillin.S. mutansbiofilms formed on hydroxyapatite discs in physiological sugar conditions and cariogenic conditions were reduced ∼2 logs and 3 logs after treatment with 100 μg/ml ClyR, respectively. In comparison, only 1 log reduction was observed in the chlorhexidine (ChX) treated group, and no killing effect was observed in the NaF treated group. A mouse dental colonization model showed that repeated use of ClyR for 3 weeks (5 μg/day) reduced the number of colonizedS. mutansin the dental plaques significantly (p<0.05), without harmful effects on mice. Furthermore, toxicity was not noted at concentrations exceeding those used for these studies and ClyR-specific antibodies could not be detected in mice saliva after repeated use of ClyR in the oral cavity. Our data collectively demonstrates that ClyR is active againstS. mutansbiofilms bothin vitroandin vivo, thus representing a preventative or therapeutic agent against dental caries.

scholarly journals Fluoride in the drinking water and dental caries experience by tooth surface susceptibility among adults

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Lina Stangvaltaite-Mouhat ◽  
Alina Puriene ◽  
Indre Stankeviciene ◽  
Jolanta Aleksejuniene
Keyword(s):  
Drinking Water ◽  
Oral Health ◽  
Dental Caries ◽  
Tooth Surface ◽  
Caries Experience ◽  
Group 4 ◽  
Occlusal Surfaces ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

Abstract Background Dental caries is the most prevalent non-communicable health condition globally. The surface-based susceptibility hierarchy indicates that surfaces in the same group have similar susceptibility to caries, where the most susceptible group consists of occlusal surfaces of first molars and buccal surfaces of lower first molars, and the least susceptible surfaces are smooth and proximal surfaces of first premolars, canines and incisors. Therefore, fluoride in the drinking water could impact one group more than the other group. The present study examined the association between fluoride levels in the drinking water and dental caries experience in adults in the context of varying tooth surface susceptibility. Methods Data from the cross-sectional National Lithuanian Oral Health Survey conducted in 2017–2019 included a stratified random sample of 1398 35–74-year-olds (52% response rate). Dental caries experience in dentine was measured at a surface level. The surfaces were grouped according to their caries susceptibility (group 1 being the most and group 4 the least susceptible), and dental caries experience was calculated separately for each susceptibility group, creating four outcomes. Information about explanatory variable, fluoride levels in the drinking water, was provided by the water suppliers. The questionnaire inquired about potential determinants: sociodemographic characteristics and oral health-related behaviors. Chi-square, Mann–Whitney U and Kruskal Wallis tests were used for descriptive statistics, and linear regression analyses to examine the association between fluoride levels and four outcomes. Results The proportions of median decayed, missing, filled surfaces decreased following the surface-based susceptibility hierarchy (group 1–33%, group 2–28%, group 3–24%, group 4–15%). When adjusted for potential determinants, higher-level fluoride (≥ 0.7 ppm vs < 0.7 ppm) in the drinking water associated with lower dental caries experience in all surface-based susceptibility hierarchy groups; Group 1: β = − 0.23 (95 %CI − 0.44; − 0.001), Group 2: β = − 0.44 (95 %CI − 0.82; − 0.07), Group 3: β = − 1.14 (95 %CI − 1.88; − 0.41) and Group 4: β = − 6.28 (95 %CI − 9.29; − 3.30). Conclusions The higher-level fluoride in the drinking water associated with lower dental caries experience in adults and this was observed in all surface-based susceptibility groups. However, there is a need to validate the surface-based susceptibility hierarchy in longitudinal adult studies.

scholarly journals Complicações associadas a restaurações realizadas em áreas de contato interproximal

2019 ◽  
Vol 8 (2) ◽  
Author(s):  
Sandson Cleyton Ferreira da Silva Oliveira ◽  
Rauhan Gomes de Queiroz ◽  
Basilio Rodrigues Vieira ◽  
Elizandra Silva Penha ◽  
Luanna Abílio Diniz Melquíades de Madeiros ◽  
...  
Keyword(s):  
Dental Caries ◽  
Resin Composite ◽  
Adult Population ◽  
Class Ii ◽  
Caries Experience ◽  
Composite Restorations ◽  
Postural Changes

Introdução: Diversas complicações estão associadas a restaurações realizadas em áreas de contato interproximal levando a tratamentos restauradores insatisfatórios, que poderão acarretar o surgimento de diversas complicações, desde retenção alimentar até formação de bolsas periodontais com perda óssea. Objetivo: Avaliar na literatura quais as principais complicações associadas a restaurações realizadas em áreas de contato interproximal. Metodologia: Realizou-se uma pesquisa de trabalhos nas seguintes bases de dados eletrônica: Literatura Latino-Americana e do Caribe em Ciências da Saúde (LILACS), Biblioteca Eletrônica Scientific Electronic Library Online (SciELO), PubMed e Bibliografia Brasileira de Odontologia (BBO), entre os anos de 2000 a 2018. Resultados: A busca das bases de dados eletrônicas recuperou 97 artigos. Após a leitura do título e resumo, leitura na íntegra e aplicação dos critérios de inclusão e exclusão foi selecionado um total de 14 estudos. Conclusão: Complicações estão associadas às diferentes etapas do tratamento restaurador interproximal, indo desde o difícil diagnóstico à verificação da adaptação marginal. O estabelecimento de ponto de contato com dispositivos foi a complicação mais encontrada.Descritores: Adaptação Marginal Dentária; Falha de Restauração Dentária; Restauração Dentária Permanente.ReferênciasFejerskov O, Nyvad B, Kidds E. Dental caries: the disease and its clinical management. Oxford: Wiley-Blackwell; 2015.Hopcraft MS, Morgan MV. Pattern of dental caries experience on tooth surfaces in an adult population. Community Dent Oral Epidemiol. 2006;34(3):174–83.Skold UM. On caries prevalence and schoo-based fluoride programmes in Swedish adolescente. Swed Dent J Suppl. 2005;1(178):11-75.Scholtanus JD, Özcan M. Clinical longevity of extensive direct composite restorations in amalgam replacement: up to 3.5 years follow-up. J Dent. 2014;42(11):1404-10.Melo P, Manarte P, Domingues J, Coelho S, Teixeira L. Técnica para obtenção do ponto de contacto em restaurações de classe II com compósito. Rev Fac Ciênc Sáude. 2005;2(1):63-72.Santos MJMC. A restorative approach for class ii resin composite restorations: a two-year follow-up. Oper Dent. 2015;40(1):19-24.Dörfer CE, von Bethlenfalvy ER, Staehle HJ, Pioch T. Factors influencing proximal dental contact strengths. Eur J Oral Sci. 2000;108(5):368-77.Loomans BAC, Opdam NJM, Roeters FJM, Brinkhorst EM, Plasschaert AJM. The long-term effect of a composite resin restoration on proximal contact tightness. J Dent. 2007;35(2):104-08.Cho SD; Browning WD, Walton KS. Clinical use of a sectional matrix and ring. Oper Dent. 2010;35(5):587-91.Meneghel LL, Wang L, Lopes MB, Gonini Junior A.  Interproximal space recovery using an orthodontic elastic separator before prosthetic restoration: a case report. Braz Dent J. 2011;22(1):79-82.Wirsching E, Loomans BAC, Klaiber B, Dörfer CE. Influence of matrix systems on proximal contact tightness of 2-and 3-surface posterior composite restorations in vivo. J Dent. 2011;39(5):386-90.Saber MH, El-Bradawy W, Loomans BAC, Ahamed DR, Dörfer CE, El Zohairy A. Creating tight proximal contacts for MOD resin composite restorations. Oper Dent, 2011;36(3):304-10.Costa TA, Raitz R, Belan LC, Matson MR. Análise do contorno da face proximal obtido em restaurações classe II de resina composta utilizando-se dois tipos diferentes de matrizes metálicas. Rev Odontol Univ São Paulo. 2009;21(1):31-7.Patras M, Doukoudakis S. Class II composite restorations and proximal concavities: clinical implications and management. Oper Dent. 2013;38(2):119-24.Prakki A, Cilli R, Saad JOC; Rodrigues JR. Clinical evaluation of proximal contacts of Class II esthetic direct restorations. Quintessence Int. 2004;35(10):785-89.Kim HS, Na HJ, Kim HJ, Kang DW, Oh SH. Evaluation of proximal contact strength by postural changes. J Adv Prosthodont. 2009;1(3):118-23.El-Shamy H, Saber M, Dörfer CE, El-Bradawy W, Loomans BAC. Influence of volumetric shrinkage and curing light intensity on proximal contact tightness of class II resin composite restorations: in vitro study. Oper Dent. 2012;37(2):205-10.Teich ST, Joseph J, Sartori N, Heima M, Duarte S. Dental floss selection and its impact on evaluation of interproximal contacts in licensure exams. J Dent Educ, 2014;78(6):921-26.Moreira MA, Larentis NL, Arossi GA, Rodruigues ED, Bortoli FR, Haas MF. A radiografia interproximal é necessária para confirmar a adaptação clínica de restaurações proximais com resinas compostas em dentes posteriores? RFO UPF. 2015;20(1):69-74.

Patterns of dental caries experience on tooth surface in Korean adolescents

2015 ◽  
Vol 39 (4) ◽  
pp. 251 ◽  
Author(s):  
In-Ja Kim ◽  
Hyun-Jeong Ju ◽  
Sun-Ho Lee ◽  
Heung-Soo Lee
Keyword(s):  
Dental Caries ◽  
Tooth Surface ◽  
Caries Experience ◽  
Korean Adolescents

scholarly journals Oral Health of Australian Adults: Distribution and Time Trends of Dental Caries, Periodontal Disease and Tooth Loss

2021 ◽  
Vol 18 (21) ◽  
pp. 11539
Author(s):  
Najith Amarasena ◽  
Sergio Chrisopoulos ◽  
Lisa M. Jamieson ◽  
Liana Luzzi
Keyword(s):  
Oral Health ◽  
Dental Caries ◽  
Periodontal Disease ◽  
Time Trends ◽  
Tooth Loss ◽  
Online Survey ◽  
Tooth Surface ◽  
Caries Experience ◽  
National Study ◽  
Dental Practitioners

This study was conducted to describe the distribution and trends in dental caries, periodontal disease and tooth loss in Australian adults based on the findings of the National Study of Adult Oral Health 2017–18. A cross-sectional study of a random sample of Australians aged 15+ years was carried out, employing a three-stage stratified probability sampling design. Data were collected via online survey/telephone interviews using a questionnaire to elicit self-reported information about oral health and related characteristics. Participants were then invited to have an oral examination, conducted by calibrated dental practitioners following a standardised protocol in public dental clinics. A total of 15,731 Australians aged 15+ years were interviewed, of which 5022 dentate participants were orally examined. Results showed that nearly one third of Australian adults had at least one tooth surface with untreated dental caries and, on average, 29.7 decayed, missing or filled tooth surfaces per person. Almost 29% of adults presented with gingivitis while the overall prevalence of periodontitis was 30.1%. Overall, 4% of adults were edentulous while, on average, 4.4 teeth were lost due to pathology. Poorer oral health was evident in Australians from lower socioeconomic backgrounds, indicating socioeconomic inequalities in oral health. Time trends revealed that dental caries experience and tooth retention of Australian adults has improved over 30 years, while periodontal health has deteriorated between 2004–06 and 2017–18. These findings can be used to assist policy makers in planning and implementing future oral healthcare programs.

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