Statement of problem: Ceria-stabilized tetragonal ZrO2/Al2O3 nanocomposite (Ce-TZP/A) offers superior properties compared to yttria-stabilized zirconia (Y-TZP). However, the bond quality to veneering ceramics has not been investigated. Purpose: The purpose of this study was to evaluate the bond strength of different veneering ceramics to Ce-TZP/A. Material and methods: Cubes of Ce-TZP/A (NANOZR) (edge length, 10 mm) were layered with veneering ceramics (5 mm in thickness) with or without application of a liner and sheared at the interface. The effect of different surface treatments (polished with 3-μm diamond paste or airborne-particle abraded) was evaluated with 1 veneering ceramic (Cerabien ZR). Shear bond strength of 5 additional veneering ceramics (IPS e.max, Initial ZR, Triceram, Vintage ZR, or VITA VM 9) to polished Ce-TZP/A was measured (n=10). Polished Y-TZP (Hint-ELs ZrO2 HIP) veneered with 2 ceramics (Cerabien ZR, Vintage ZR) served as the control. Mean shear bond strength values (MPa) were calculated. The means were statistically analyzed with 2-way ANOVA for the effect of surface treatment and liner, 2-way ANOVA for the effect of different veneering ceramic brands and liner, and 3-way ANOVA for the effect of substrate, veneering ceramic brands, and liner, as well as 1-way ANOVA for the differences between the veneering ceramics. A post hoc Scheffé test was used (α=.05). Results: The effects of surface treatment (P=.007) or application of liner (P
CITATION STYLE
Fischer, J., Stawarczyk, B., Sailer, I., & Hämmerle, C. H. F. (2010). Shear bond strength between veneering ceramics and ceria-stabilized zirconia/alumina. Journal of Prosthetic Dentistry, 103(5), 267–274. https://doi.org/10.1016/S0022-3913(10)60056-X
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