title: Flexural strength of four adhesive fixed dental prostheses of composite resin reinforced with glass fiber.
abstract: OBJECTIVE
  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.
  
  
  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.
  
  
  CONCLUSIONS
  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.
authors: Department of Materials and Prosthodontics, São Paulo State University, UNESP, São José dos Campos, Brazil.
authors: Anna Karina Figueiredo
authors: AK
authors: Costa
authors: Lucas Hian
authors: LH
authors: da Silva
authors: Guilherme Siqueira Ferreira Anzaloni
authors: GS
authors: Saavedra
authors: Tarcisio Jose Arruda
authors: TJ
authors: Paes
authors: Alexandre Luiz Souto
authors: AL
authors: Borges
mesh_terms: D003188:Composite Resins / Q000737:chemistry*; D001840:Dental Bonding; D003764:Dental Materials / Q000737:chemistry*; D003799:Dental Stress Analysis / Q000295:instrumentation; D003779:Denture Design; D003830:Denture, Partial, Fixed; D005898:Glass / Q000737:chemistry*; D006801:Humans; D055115:Light-Curing of Dental Adhesives; D008422:Materials Testing; D018583:Pliability; D013314:Stress, Mechanical; D013499:Surface Properties
chemical_list: D003188:Composite Resins; D003764:Dental Materials; C444701:Filtek Z250; C009753:fiberglass