Table I.

Basic characteristics of patients.

Characteristics	U group (n=21)	P group (n=19)	P-value
Sex (male:female)	8 (38.1%):13 (61.9%)	10 (52.6%):9 (47.4%)	0.163
Age (years)	30.27±5.33	27.64±3.19	0.132
Blood results
WBC	6.02±2.03	5.91±1.56	0.093
CRP	1.19±0.40	1.96±1.33	0.151
ALT	10.40±3.90	12.92±8.43	0.560
AST	15.30±11.98,19.60)	16.91±12.83	0.118
BUN	3.64±1.92	3.21±1.97	0.106
Scr	94.15±16.35	96.55±14.51	0.474

P, prepared porcelain veneers; U, unprepared porcelain veneers.