Rodrigo Neves

PURPOSE: Evaluating histologically the silicone peri-implant coated by polyurethane inflammation associated to the use of anti-microbial and bacterial contamination. METHODS: It was used 35 Wistar rats. The animals were divided in seven groups: I — Control; II — implant cavity contamination with10 bacteria/ml; III - implant cavity contamination with 10 bacteria/ml; IV — implant cavity contamination with 10 bacteria/ml; V — identical contamination to group II and implant immersions in anti-microbial solution; VI — identical contamination in group III and implant immersions in the anti-microbial solution; VII — identical contamination of group IV and implant immersions in anti-microbial solution. It was evaluated morphometrically the peri-implant capsules after 30 days of introduction. RESULTS: The factors with more discriminating power were the giants cells of a strange body and the mononuclear. There was no correlation between the bacterial concentrations and the histological alterations. CONCLUSION: 1) The histological standard of the inflammatory reaction around the silicone implant coated with polyurethan is chronic granulomatosis type of a strange body; 2) There isn´t correlation between concentration of Staphylococcus epidermidis and histological changes; 3) The use of anti-microbial solution decreased the mononuclear cell reactions, with the increase of giant cells in a strange body.

O insucesso de retalhos devido a necrose total ou parcial não é um fato isolado. O edema pode ser um fator importante na perda do retalho. A hialuronidase degrada o ácido hialurônico presente no tecido conjuntivo que está envolvido na homeostase da água na matriz extracelular, e ...

... Ariberto Pereira da Cunha, 333 12516-410, Guaratinguetá, SP, Brasil Emails: Jose-Celso.Freire@ feg.unesp.br, gsena@feg.unesp.br, Rodrigo.Neves@ifrance.com, rbkina@yahoo.com ... A idéia inicial deste trabalho foi criar uma es-trutura mecânica simples, de baixo custo e que ...

Reinforced concrete grids are usually used to support large floor slabs. These grids are characterized by a great number of critical cross-sections, where the overall failure is usually sudden. However, nonlinear behavior of concrete leads to the redistribution of internal forces and accurate reliability assessment becomes mandatory. This paper presents a reliability study on reinforced concrete (RC) grids based on