Evaluation of Dual-Cure Resin Cement Polymerization under Different Types and Thicknesses of Monolithic Zirconia

Table 5

Mean Vickers hardness numbers for dual-cure resin cement depending on the thickness of the overlying zirconia disk.

Thickness (mm)	Zirconia type		p
	PRZ	PRA
	Mean±SD	Mean±SD
0.5	61.93±9.11	66.60±7.53	0.021
1.0	57.43±7.60	64.44±6.55	<0.001
1.5	53.53±8.37	57.94±6.80	0.017
2.0	46.95±6.72	50.30±5.48	0.024
p	<0.001	<0.001
^‡0.5 vs. 1.0	0.110	0.999
^‡0.5 vs. 1.5	<0.001	<0.001
^‡0.5 vs. 2.0	<0.001	<0.001
^‡1.0 vs. 1.5	<0.001	<0.001
^‡1.0 vs. 2.0	<0.001	<0.001
^‡1.5 vs. 2.0	0.004	<0.001

Independent samples t-test.   One-way ANOVA.   ^‡Bonferroni-corrected p-values.
PRZ: Prettau Zirconia; PRA: Prettau Anterior.
p<0.05.