A nova inserção da periodontia nos currículos integrados de faculdades de odontologia brasileiras / Insertion of Periodontics in integrated curriculum at brazilian dental schools

A Periodontia tem sido incluída na base da estrutura de clínicas por complexidade crescente. Essa abordagem segue as Diretrizes Curriculares Nacionais propostas pelo Ministério da Educação e Cultura (MEC). De acordo com a evolução da Odontologia nos últimos anos e as mudanças ocorridas com relação às necessidades da população, este estudo propôs-se a investigar a inserção da Periodontia neste novo contexto e os parâmetros utilizados na avaliação periodontal e das estruturas peri-implantares. Um e-mail foi submetido para um professor de Periodontia de cada instituição de ensino brasileira. Neste havia um link que o professor deveria acessar, ler e concordar com o termo de consentimento para ter acesso ao questionário. As respostas enviadas por 30 faculdades brasileiras foram analisadas de forma descritiva. De acordo com as respostas dos questionários pôde-se verifcar que há uma tendência à renovação curricular pautada na integração clínica. Porém, uma readequação e/ou inclusão da avaliação de certos aspectos anatômicos relacionados ao periodonto, no que diz respeito à saúde e estética periodontal e peri-implantar, faz-se ainda necessária.

Peel bond strength of resilient liner modified by the addition of antimicrobial agents to denture base acrylic resin

In order to prolong the clinical longevity of resilient denture relining materials and reduce plaque accumulation, incorporation of antimicrobial agents into these materials has been proposed. However, this addition may affect their properties. OBJECTIVE: This study evaluated the effect of the addition of antimicrobial agents into one soft liner (Soft Confort, Dencril) on its peel bond strength to one denture base (QC 20, Dentsply). MATERIAL AND METHODS: Acrylic specimens (n=9) were made (75x10x3 mm) and stored in distilled water at 37ºC for 48 h. The drug powder concentrations (nystatin 500,000U - G2; nystatin 1,000,000U - G3; miconazole 125 mg - G4; miconazole 250 mg - G5; ketoconazole 100 mg - G6; ketoconazole 200 mg - G7; chlorhexidine diacetate 5% - G8; and 10% chlorhexidine diacetate - G9) were blended with the soft liner powder before the addition of the soft liner liquid. A group (G1) without any drug incorporation was used as control. Specimens (n=9) (75x10x6 mm) were plasticized according to the manufacturers' instructions and stored in distilled water at 37ºC for 24 h. Relined specimens were then submitted to a 180-degree peel test at a crosshead speed of 10 mm/min. Data (MPa) were analyzed by analysis of variance (α=0.05) and the failure modes were visually classified. RESULTS: No significant difference was found among experimental groups (p=0.148). Cohesive failure located within the resilient material was predominantly observed in all tested groups. CONCLUSIONS: Peel bond strength between the denture base and the modified soft liner was not affected by the addition of antimicrobial agents.