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Updated: Jun 1, 2026
Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
Published on: December 20, 2024
[The comparative research on resin bond strength and durability of two machinable glass ceramic]
Qing Liu1, Xiang-Feng Meng, Hong Ding
1Dept. of Prosthodontics, The Affiliated Stomatological Hospital of Nanjing University, Nanjing 210008, China.
Objective:
To evaluate the effect of different silane couplers on bond strength and durability of two machinable glass ceramics to resin cement.
Methods:
Two machinable glass ceramics (A and B) were silanized by three silane couplers (A, B, C), and were bonded with a resin cement (G-CEM) to form micro-shear test specimens of six groups. The specimens of each group were subdivided into two subgroups, and their micro-shear bond strength was measured before and after 10000 thermal cycles. Bond strength data were analyzed by two-way ANOVA.
Results:
Before thermal cycles, the bond strength of ceramic A treated by silane coupler A was lower than that of ceramic B (P = 0.002). The bond strength of ceramic A treated by silane coupler C was significantly higher than that treated by silane coupler A and B (P = 0.014, P = 0.019). 10 000 thermal cycles obviously decreased the bond strength of all groups except the group of ceramic A treated by silane coupler B, and no significant difference was found between three silane coupler with either of two ceramic. However the bond strength of ceramic B treated by silane coupler B and C was significantly higher than that of ceramic A (P = 0.003, P = 0.027).
Conclusion:
As well as the types of silane coupler, the type of ceramic could affect their bond strength and durability to resin cement.
