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Updated: Apr 26, 2026
Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
Published on: December 20, 2024
[Effect of different surface treatments on the shear bond of zirconia substructure and veneering ceramic]
Qun Zhong1, Yan Peng, Xue-ying Wu
1Shanghai Stomatological Disease Center. Shanghai 200031, China.E-mail:zhongqun681115@qq.com.
Purpose:
To investigate the effect of different surface treatments on the shear bond strength of zirconia substructure and veneering ceramic.
Methods:
Kavo zirconia specimens were divided into 4 groups (each group contains 8 specimens) according to different surface treatments: Group A was pigmented by dipping presintered blocks in the coloring solution VITA LL5, and not treated with abrasion after firing; Group B was pigmented with the same solution and then dealt with abrasion; Group C was not treated by any methods and Group D was only dealt with abrasion. All the veneering ceramics were fired on the zirconia substructure by slip-casting technique and the shear bond strength of zirconia substructure and veneering ceramic were tested. The data was analyzed statistically with SPSS 10.0 software package.
Results:
The shear bond strength of the abrasive-treated groups (group B and group D) was significantly higher than the other two groups, but no significant difference was found between pigmented-treated groups (group A and group C) and non-pigmented-treated groups (group B and group D).
Conclusions:
Abrasion can increase the shear bond between Kavo zirconia substructure and veneering ceramics while pigmentation has no significant effect on the bonding strength.
