Table 5.

Wilcoxon Signed Ranks test results (p-values) comparing the baseline, 24 months and 84 months scores for USPHS criteria

	p-values
Category	Baseline-84 months	24 months-84 months
Marginal adaptation	0.008*	0.165
Color match	0.000*	0.000*
Marginal discoloration	0.000*	0.001*
Surface roughness	0.000*	0.000*
Fracture of restoration	0.001*	0.001*
Fracture of tooth	1.000	1.000
Postoperative sensitivity	1.000	1.000

*p < 0.05.