Flexural Strength of Four Adhesive Fixed Dental Prostheses of Composite Resin Reinforced with Glass Fiber
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Data
2012-01-01
Autores
Figueiredo Costa, Anna Karina [UNESP]
da Silva, Lucas Hian [UNESP]
Ferreira Anzaloni Saavedra, Guilherme Siqueira [UNESP]
Arruda Paes, Tarcisio Jose [UNESP]
Souto Borges, Alexandre Luiz [UNESP]
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Editor
Quintessence Publishing Co Inc
Resumo
Purpose: To evaluate the flexural strength of two fixed dental prosthesis (FDP) designs simulating frameworks of adhesive fixed partial prostheses, reinforced or not by glass fiber.Materials and Methods: Forty specimens, made with composite resin, were divided into 4 groups according to the framework design and the presence of fiber reinforcement: A1 - occlusal support; A2: occlusal support + glass fiber; B1: occlusal and proximal supports; B2: occlusal and proximal supports + glass fiber. The specimens were subjected to the three-point bending test, and the data were submitted to two-way ANOVA and Tukey's test (5%).Results: Group A2 (97.9 +/- 38 N) was statistically significantly different from all other experimental groups, presenting a significantly lower mean flexural strength.Conclusion: The use of glass fibers did not improve the flexural strength of composite resin, and designs with occlusal and proximal supports presented better results than designs simulating only occlusal support.
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Palavras-chave
glass fiber, flexural strength, composite resin
Como citar
Journal of Adhesive Dentistry. Hanover Park: Quintessence Publishing Co Inc, v. 14, n. 1, p. 47-50, 2012.