Avaliação da resistência flexural de resinas acrílicas termoativadas: influência do tempo de prensagem e armazenagem pós-polimerização

• Autor(a) principal: Bergamini, Larissa Ferreira da Silva [UNESP]
• Data de Publicação: 2012
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/149457; http://www.athena.biblioteca.unesp.br/exlibris/bd/capelo/2017-01-27/000855697.pdf
• topic: Prótese total; Polimetil metacrilato; Polimerização; Denture, Complete

The rehabilitation of edentulous patients by partial or complete or partial devices made of acrylic resin has been a successful option in dentistry. Is attributed to the success of the manufacture of acrylic resin base dentures to three factors: its excellent appearance, processing simple and easy to repair. As a disadvantage, devices made of acrylic resin can fracture in during chewing or even during hygiene procedures (these frequently) as a result of fatigue or low resistance of the material, highly influenced by pre-and post-polymerization: time pressing, temperature control, and storage polymerization cycle. The purpose of this study was to assess the importance of pressing time and storage of post-curing on the flexural strength of acrylic resins ® and Classic ® Plus Vipi Cril. 60 bodies were made-of-proof standard for each acrylic resin studied as Specification No. 12 of the American Dental Association (65 x 10 x 2.5 mm). The finish was done in lathe and polished with sandpaper following the sequence: 200, 500, 600, 800 and 1200. The body-of-evidence were divided into 12 groups (n = 10) distinguished: Group I - Vipi Cril Plus ® - Pressing conventional / Group II - Vipi Cril Plus ® - Pressing conventional storage + distilled water 24 hours / Group III - Vipi Cril Plus ® - Pressing conventional storage distilled water + 30 days / Group IV - Vipi Cril Plus ® - Pressing 24 / Vipi Cril Group V-Plus ® - Pressing 24 hours + 24 hours storage distilled / Group VI - Vipi Cril Plus ® - Pressing 24 hours + distilled water 30 days storage / Group VII - Classic ® - Pressing conventional / Group VIII - Classic - Pressing conventional storage + distilled water 24 hours / Group IX - Classic ® - Pressing conventional storage distilled water + 30 days / Group X - Classic ® - Pressing 24 / XI Group - Classic ® - Pressing 24 hours + 24 hours storage distilled...