The effect of surface grinding and sandblasting on flexural strength and reliability of Y-TZP zirconia ceramic

摘要

Objectives; This study was conducted to evaluate the effect of grinding and sandblasting on the microstructure, biaxial flexural strength and reliability of two yttria stabilized tetragonal zirconia (Y-TZP) ceramics. Methods: Two Y-TZP powders were used to produce fine grained and coarse grained microstructures. Sixty discs from each material were Randomly divided into six groups of ten. For each group, a different surface treatment was applied; dry grinding, wet grinding, sandblasting, Dry grinding + sandblasting, sandblasting + dry grinding and a control group.