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Basic mechanical properties of experimental zirconia for CAD/CAM systems

Grant number: 12/07435-0
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): November 01, 2012
Effective date (End): October 31, 2013
Field of knowledge:Health Sciences - Dentistry - Dental Materials
Principal researcher:Ana Flávia Sanches Borges
Grantee:Bruno Freitas Trevizo
Home Institution: Faculdade de Odontologia de Bauru (FOB). Universidade de São Paulo (USP). Bauru , SP, Brazil


The aim of this study is to evaluate the basic mechanical properties such as: sintering shrinkage, maximum flexural strength, modulus of elasticity and elongation of an experimental zirconium compared to Zirconias commercially available for use in CAD / CAM systems. The three groups wil be: ZE: Zirconia experimental; ZV: Vita Ceram 2000 YZ Cube; ZCA: IPS e.max ZirCAD. The blocks of pre-sintered zirconium (n = 10) will be trimmed in a rectangular pattern and brought to the oven for the final sintering. After the analysis of polymerization shrinkage using a caliper, specimens will be fractured by flexural three points test. The results of maximum strength to bending as well as the values of sintering shrinkage, elastic modulus and elongation will be submitted to ANOVA (± = 0.05) and Tukey test for comparison among groups. (AU)

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