No abstract

Este trabalho teve como objetivo avaliar as dimensões psicológicas, físicas e sociais do impacto do uso de próteses dentárias totais na qualidade de vida de idosos. MÉTODOS: A amostra consistiu de 50 pacientes usuários de prótese total, com idade acima de 60 anos, moradores da cidade de Santa Maria-RS, Brasil. A contribuição dos pacientes deu-se através do preenchimento do Oral Health Impact Profile contendo 14 questões (OHIP-14versão na língua protuguesa), o qual investiga sete dimensões relacionadas ao impacto da condição de saúde bucal na qualidade de vida: limitação funcional, dor física, desconforto psicológico, inabilidade física, inabilidade psicológica, inabilidade social e incapacidade. Para cada uma das 14 questões foi utilizada uma escala de 5 pontos, onde a resposta determina o escore de cada questãoquanto mais alto o valor gerado, maior o impacto do aspecto questionado. Os dados coletados foram analisados através de estatística descritiva e comparados através do teste de Mann-Whitney (α=0.05). RESULTADOS: Observou-se que dor física é o aspecto relacionado ao uso de próteses totais que teve estatisticamente maior impacto na qualidade de vida de idosos, enquanto a inabilidade social e a incapacidade tiveram estatisticamente menor influência. CONCLUSÕES: Conclui-se que o uso de próteses totais tem influência na qualidade de vida de idosos. PALAVRAS-CHAVE: Prótese total. Qualidade de vida. Saúde do idoso.

The methodology used in this study allows us to conclude that immersion of hydroxyapatite-coated titanium in a solution of diphosphonate was efficient to promote the immobilization of this drug on the titanium surface.

Purpose: To evaluate in vitro the shear bond strength of orthodontic accessories to porcelain, under different porcelain surface treatment protocols, and the resultant failure pattern after debonding. Methods: The sample consisted of 80 feldspathic porcelain discs, divided into 4 groups: Group 1-37% Phosphoric acid etching; Group 2-10% fluorhydric acid; Group 3-37% Phosphoric acid and silane application; Group 4-10% fluorhydric acid and silane application. The samples were submitted to the shear bond strength test in a universal test machine to record the maximum rupture force. Results: Group 1 showed lower results, and Group 4 presented higher results than the other tested groups.There was no statistical difference between Groups 2 and 3. Groups 1 and 3 presented exclusively adhesive failures between porcelain and resin, whereas Groups 2 and 4 showed cohesive failures in porcelain. Conclusion: The use of phosphoric acid followed by silane application was the best protocol for bonding orthodontic accessories to porcelain surfaces, since it was capable of resisting the forces applied during orthodontic treatment without causing irreversible failures in restorations.

The aim of this study was to make a comparative evaluation of three chemical substances for cleaning complete dentures, as regards their efficacy of biofilm removal. The sample consisted of 20 maxillary complete dentures. The dentures were randomly divided into groups according to the chemical cleaning method to be used: Group 1-water (control), Group 2-sodium hypochlorite solution, Group 3-sodium perborate (Corega Tabs®) and Group 4-2% chlorhexidine. The groups were evaluated in terms of the quantity of biofilm before and after application of the chemical cleaning method by applying a revealer, and later, analysed by the Denture Hygiene Index (DHI). The results showed that only sodium hypochlorite solution was effective for biofilm removal. There was statistically significant difference among the groups, pointing out greater efficacy of the method used in Group 2 in comparison with Groups 1 and 4. Group 3 did not differ statistically from any other group evaluated. The results allowed to conclude that sodium hypochlorite solution is the most efficient chemical agent for removing biofilm from complete dentures. However, when used alone, all the tested chemical cleaning methods were incapable of eliminating all the biofilm from denture surfaces.