Shear Bond Strength of MDP-Containing Self-Adhesive Resin Cement and Y-TZP Ceramics: Effect of Phosphate Monomer-Containing Primers

Abstract EN

Purpose.

This study was conducted to evaluate the effects of different phosphate monomer-containing primers on the shear bond strength between yttria-tetragonal zirconia polycrystal (Y-TZP) ceramics and MDP-containing self-adhesive resin cement.

Materials and Methods.

Y-TZP ceramic surfaces were ground flat with #600-grit SiC paper and divided into six groups ( n = 10 ).

They were treated as follows: untreated (control), Metal/Zirconia Primer, Z-PRIME Plus, air abrasion, Metal/Zirconia Primer with air abrasion, and Z-PRIME Plus with air abrasion.

MDP-containing self-adhesive resin cement was applied to the surface-treated Y-TZP specimens.

After thermocycling, a shear bond strength test was performed.

The surfaces of the Y-TZP specimens were analyzed under a scanning electron microscope.

The bond strength values were statistically analyzed using one-way analysis of variance and the Student–Newman–Keuls multiple comparison test ( P < 0.05 ).

Results.

The Z-PRIME Plus treatment combined with air abrasion produced the highest bond strength, followed by Z-PRIME Plus application, Metal/Zirconia Primer combined with air abrasion, air abrasion alone, and, lastly, Metal/Zirconia Primer application.

The control group yielded the lowest results ( P < 0.05 ).

Conclusion.

The application of MDP-containing primer resulted in increased bond strength between Y-TZP ceramics and MDP-containing self-adhesive resin cements.