ABSTRACT
OBJECTIVE: to identify the prevalence of and factors associated with total edentulism in the elderly Brazilian population. In addition, we sought to verify whether edentulism influences the self-perception of oral health and difficulty in eating. MATERIALS AND METHODS: This cross-sectional, population-based study used the database of the National Health Survey conducted in Brazil. The chi-square test was initially used for data analysis. Subsequently, a multivariate analysis of the Poisson multiple regression type was performed to verify the adjusted prevalence ratios. RESULTS: A total of 43,554 elderly people participated in the study, of whom 32% had completely lost their teeth. This total edentulism, based on the multivariate analysis, was associated with female gender (p < 0.001), advances age (p < 0.001), illiterate (p < 0.001), smokers (p < 0.001), and those who did not have health insurance (p < 0.001) or dental insurance (p < 0.001). Total edentulism had an impact on better self-perception of oral health (p < 0.001) and greater difficulties in eating (p = 0.001). CONCLUSION: It was concluded that total edentulism in the elderly is associated with worse socioeconomic conditions and a worse lifestyle. This condition has a negative impact on diet and positively affects self-perception of oral health.
ABSTRACT
Objective: To evaluate if alcoholic beverages can cause color change in composite resins, if the alcoholic concentration influences this variation besides analyzing within the composite resins tested, which would present greater color stability when subjected to the experiment. Material and Methods: 90 specimens of three different composite resins (IPS Empress Direct, Grandio®So and Filtek Z350 XT) were immersed in distilled water (control group), red wine and vodka. The samples were 2 mm thick and 8 mm in diameter, photopolymerized for 20 s on each side, polished with sandpaper, silicon carbide tip and felt disc with prophylactic paste and immersed in distilled water at 37 °C for 24 h prior to subgrouping. For the evaluation of the color variation, the formula prioritized by the CIEL *a *b* system was used. Data were analyzed by ANOVA and Tukey's test at 95% significance. Results: The lowest variations occurred with the Grandio®So resin when exposed to wine, and Filtek Z350 XT when exposed to vodka. There was a statistically significant difference between the groups in water (p < 0.01) and in red wine (p < 0.01), but not in vodka (p > 0.05). The soaking medium that most caused staining was red wine. Conclusion: Red wine was the drink that generated the highest staining in all the resins tested, vodka did not change color stability significantly, the alcoholic concentrations tested did not directly influence the color change and the composite resin Grandio®So presented greater color stability when exposed to red wine. (AU)
Objetivo: Avaliar se bebidas alcóolicas podem provocar alteração de cor em resinas compostas, se a concentração alcóolica tem influência nesta variação além de analisar dentre as resinas compostas testadas, qual apresentaria maior estabilidade de cor quando submetidas ao experimento. Material e métodos: Foram confeccionados 90 espécimes de 3 diferentes resinas compostas (IPS Empress Direct, Grandio®So e Filtek Z350 XT) e imersos em água destilada (grupo controle), vinho tinto e vodca. As amostras mediam 2 mm de espessura e 8 mm de diâmetro, foram fotopolimerizados por 20 s cada lado, polidos com disco de lixa, ponta de carbeto de silício e disco de feltro com pasta profilática e imersos em água destilada a 37 ºC por 24 h antes da divisão em subgrupos. Para a avaliação da variação de cor foi utilizada a fórmula priorizada pelo sistema CIEL*a*b*. Os dados foram analisados por ANOVA e teste de Tukey a 95% de significância. Resultados: As menores variações ocorreram com a resina Grandio®So quando exposta ao vinho, e a Filtek Z350 XT quando exposta à vodca. Houve diferença estatisticamente significante entre os grupos na água (p < 0.01) e no vinho tinto (p < 0.01), mas não na vodca (p > 0,05). O meio de imersão que mais causou manchamento foi o vinho tinto. Conclusão: O vinho tinto foi a bebida que gerou o maior manchamento em todas as resinas testadas, a vodca não alterou a estabilidade de cor de maneira significativa, as concentrações alcóolicas testadas não influenciaram diretamente na alteração de cor e a resina composta Grandio®So apresentou maior estabilidade de cor frente ao vinho tinto. (AU)
Subject(s)
Alcoholic Beverages , Color , Composite Resins , Dental Materials , Resin CementsABSTRACT
OBJECTIVE: This study aimed to investigate bleached enamel susceptibility to coffee and red-wine staining at different time periods after bleaching. BACKGROUND DATA: Although hydrogen peroxide is effective for dental bleaching, little is known regarding color stability immediately after bleaching. MATERIALS AND METHODS: Fifty-four standardized bovine enamel slabs were obtained and assigned to the following treatments (n = 9): (CO) control: sound enamel surface submitted only to bleaching with 35% hydrogen peroxide (HP); (C30') enamel submitted to HP and coffee immersion at 30 min after bleaching; (C150') enamel submitted to HP and coffee immersion at 150 min after bleaching; (W30') enamel submitted to HP and red-wine immersion at 30 min after bleaching; and (W150') enamel submitted to HP and red-wine immersion at 150 min after bleaching. The color of treated enamel was determined by means of photoreflectance spectroscopy at baseline (T(0)) and after the described treatments (T(f)), and data were statistically analyzed with ANOVA and Tukey tests (p < 0.05). RESULTS: No differences were observed between the exposure times of 30 and 150 min after bleaching for both beverages (p > 0.05). Although coffee did not stain the surface, red wine significantly darkened previously bleached enamel (p < 0.05). CONCLUSION: Bleached enamel was susceptible to red-wine staining at both 30 and 150 min after bleaching procedures, whereas coffee did not interfere with the bleaching process.
Subject(s)
Coffee/adverse effects , Dental Enamel/drug effects , Animals , Cattle , Dental Enamel Permeability/drug effects , Hydrogen Peroxide , Spectrophotometry , Time Factors , Tooth Bleaching , Tooth Bleaching Agents , Tooth Discoloration/etiology , Wine/adverse effectsABSTRACT
O objetivo do presente estudo foi avaliar a resistência adesiva de três sistemas adesivos, de diferentes composições, aplicados à dentina humana. Doze terceiros molares humanos foram incluídos em resina acrílica, esterilizados por radiação gama gerada pelo cobalto 60, tiveram o esmalte oclusal removido para exposição de uma superfície plana de dentina e foram submetidos a uma lixa de carbeto de silício (n° 600) para regularização da lama dentinária. As amostras foram divididas em 3 grupos: Grupo 1 - Single Bond (3M); Grupo 2 - AdheSE (Ivoclar); Grupo 3 - Tyrian e One step Plus (Bisco). Para todos os grupos a resina composta EsthetX (Dentsply) foi inserida pela técnica incremental, em matriz bipartida, sobre a área preparada. Após 24h de armazenagem em água destilada a 37°C, os corpos-de-prova foram termociclados em 500 ciclos (5°C a 55°C) e seccionados longitudinalmente nos sentidos frontal e sagital para a obtenção de palitos de 1mm². Os espécimes foram submetidos ao teste de microtração a uma velocidade de 0,5mm/min. Para a análise estatística foram empregados os testes de análise de variância (ANOVA) e a comparação múltipla de Tukey (5%). Os valores médios obtidos foram 27,41MPa (SB), 16,44MPa (AD) e 13,03MPa (TO). Conclui-se que: o sistema monocomponente (SB) apresentou resistência adesiva siginificantemente maior que os autocondicionantes (AdheSE e Tyrian + One Step Plus) e que não houve diferença estatística entre os sitemas autocondicionantes; o sistema adesivo Single Bond apresentou o maior número de fraturas coesivas.
