RESUMO
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.
RESUMO
O objetivo desta pesquisa foi avaliar a resistência da união, pelo método depush out, de pinos de fibra de vidro cimentados com cimento resinoso dual associado ao sistema adesivo Single Bond Universal, através de diferentes estratégias adesivas. Em 40 incisivos bovinos, um pino de fibra de vidro (Whitepost DC nº3) foi cimentado com cimento resinoso dual (RelyX ARC) e adesivo (Single Bond Universal). Os dentes foram divididos em 4 grupos (n = 10), de acordo com a estratégia de união. No Grupo 1 não se realizou nenhum tratamento do substrato dentinário. O Grupo 2 recebeu condicionamento com ácido fosfórico 37%. O Grupo 3 recebeu a aplicação de clorexidina 2% e o Grupo 4 recebeu condicionamento com ácido fosfórico 37% e aplicação da clorexidina 2%. Os grupos foram fatiados (1,8 mm) em três porções (cervical, média e apical) e tiveram seus pinos deslocados pela máquina universal de ensaios mecânicos. A análise estatística foi feita pelos testes ANOVA e Post Hoc de Tukey (p = 0,05). A técnica autocondicionante obteve maiores valores em MPa, mostrando a não necessidade de condicionamento ácido para melhoria da resistência adesiva. Para a técnica com condicionamento ácido, com e sem clorexidina, os valores de resistência adesiva foram estatisticamente semelhantes nos três terços radiculares. Para a técnica autocondicionante, com e sem o uso da clorexidina, a região cervical exibiu os maiores valores de resistência adesiva. Em ambas as técnicas, convencional e autocondicionante, não houve diferença significativa nos valores imediatos de resistência adesiva ao uso da clorexidina (AU).
The aim of this research was to evaluate by the push up method the bonding strength of fiberglass pins cemented with dual resin cement associated to the Single Bond Universal adhesive system through different adhesive strategies. In 40 bovine incisors, a fiberglass pin (Whitepost DC nº3) was cemented with dual resin cement (RelyX ARC) and adhesive (Single Bond Universal). The teeth were divided in 4 groups (n = 10), according to the union strategy. In Group 1, no treatment of the dentin substrate was performed. Group 2 received conditioning with 37% phosphoric acid. Group 3 received 2% chlorhexidine and Group 4 received conditioning with 37% phosphoric acid and 2% chlorhexidine application. The groups were sliced (1.8 mm) in three portions (cervical, middle, and apical) and had their pins displaced by the universal machine of mechanical tests. Statistical analysis was performed by ANOVA and Tukey's Post Hoc tests (p = 0.05). The self-etching technique obtained higher values in MPa, showing no need of acid conditioning to improve the adhesive strength. For the acid-conditioning technique with and without chlorhexidine, adhesive strength values were statistically similar in the three-thirds root. For the self-etching technique with and without the use of chlorhexidine, the cervical region exhibited the highest values of adhesive strength. In both techniques, conventional and self-etching, there was no significant difference in the immediate values of adhesive resistance to the use of chlorhexidine (AU).
