Determination of Resin Bond Strength to Zirconia Ceramic Surface Using Different Primers

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OBJECTIVE: To evaluate the effect of different primers on the bond strength of adhesive resin cement to zirconia ceramic surface in vitro. MATERIAL AND METHODS: Thirty zirconia disk-shaped ceramic specimens (10×2 mm²) were divided into three equal groups for the application of different primers: Monobond-S, Clearfil Ceramic Primer and Signum Zirconia Bond. A further 10 specimens served as a control group. Forty composite resin blocks (6×2 mm²) were cemented (Panavia F 2.0) to zirconia ceramic specimens. Shear bond strengths were measured. Treated zirconia ceramic surfaces were examined using scanning electron microscopy. RESULTS: One-way ANOVA showed that the application of different primers affected the shear bond strength of adhesive resin cement to zirconia ceramic. The highest test values were obtained with application of Signum Zirconia Bond, and the lowest values were obtained in the control group. CONCLUSION: Signum Zirconia Bond is effective for increasing the bond strength of adhesive resin cement to zirconia ceramic.