Bond Strength of Resin Cements to a Zirconia Ceramic with Different Surface Treatments

Abstract

©Operative Dentistry, 2009, 34-3, 280-287 AN Cavalcanti • RM Foxton • TF Watson MT Oliveira • M Giannini • GM Marchi Clinical RelevanceAir abrasion and the use of special functional monomers that are able to chemically bond to zirconium dioxide can improve adhesion to a highly dense zirconia ceramic. Fragments of dentin with a cylindrical edge (0.8 mm in diameter) were fixed to ceramic surfaces with the resin cements. The micro-shear bond test was carried out at a 1 mm/minute speed until failure, and the ceramic surfaces were examined after debonding. Bond strengths were analyzed through three-way ANOVA/Tukey test with a 5% significance level. Changes in topography after surface treatments were evaluated with scanning electron microscopy. Surface treatments significantly modified the topography of the Y-TZP ceramic. Air abrasion resulted in increased SUMMARY

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