Shear Bond Strengths between Three Different Yttria-Stabilized Zirconia Dental Materials and Veneering Ceramic and Their Susceptibility to Autoclave Induced Low-Temperature Degradation

Table 8

Comparison of surface grain size (µm) of zirconia in all the groups showing mean, standard deviation, and significance for the samples within subgroups.

	Upcera	Ziecon	Cercon	value (significance < 0.05)
Comparison in between subgroups without artificial aging
Mean (µm) ± SD	0.43 ± 0.039	0.41 ± 0.064	0.39 ± 0.060	0.532
Comparison in between subgroups with artificial aging
Mean (µm) ± SD	0.42 ± 0.034	0.40 ± 0.05	0.40 ± 0.032	0.781

Non significant.