Tensile bond strength of cast commercially pure titanium dowel and cores cemented with three luting agents

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概要

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• Purpose: The purpose of this study was to compare the tensile strength of commercially pure titanium dowels and cores cemented with zinc phosphate or resin cements.Methods: Twenty-one extracted human canines were endodontically treated. The root preparations were accomplished using Largo reamers (10 mm in depth and 1.7 mm in diameter). Acrylic resin patterns for the dowel and cores were made, and specimens were cast in commercially pure titanium (n = 7) and divided in three groups: TZ–CP Ti dowels luted with zinc phosphate luting agent, TP–CP Ti dowels luted with Panavia F and TR–CP Ti dowels luted with RelyX U100. Tensile strengths were measured in a universal testing machine at a crosshead speed of 0.5 mm/min. The results (N) were statistically analyzed by ANOVA and Tukey tests (α = 0.01).Results: The ANOVA indicated that there were significant differences among the groups tested. A Tukey multiple comparison procedure was performed and revealed statistically significant higher retention values for the dowel luted with RelyX U100 when compared with zinc phosphate or Panavia F.Conclusion: Cast commercially pure titanium dowels and cores fixed with RelyX U100 cement presented superior bond strength retention when compared to zinc phosphate and Panavia F.

• 社団法人 日本補綴歯科学会の論文

著者

• De Almeida

  Departamento De Analises Clinicas E Toxicologicas Faculdade De Ciencias Farmaceuticas Universidade D

• Ribeiro Ricardo

  Department of Dental Materials and Prosthodontics, Dental School of Ribeirão Preto, University of São Paulo

• de Almeida

  Department of Dental Materials and Prosthodontics, Dental School of Ribeirão Preto, University of São Paulo

• Lencioni Karina

  Department of Dental Materials and Prosthodontics, Dental School of Ribeirão Preto, University of São Paulo

• Menani Luiz

  Department of Dental Materials and Prosthodontics, Dental School of Ribeirão Preto, University of São Paulo

• Macedo Ana

  Department of Dental Materials and Prosthodontics, Dental School of Ribeirão Preto, University of São Paulo

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• Tensile bond strength of cast commercially pure titanium dowel and cores cemented with three luting agents

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