Table 1.

Clinical features of the subjects.

	OLP (n = 25)	Control (n = 13)
Gender
Male	12	5
Female	13	8
Age (years)
Range	19~57	20~55
Mean ± SD	40.2 ± 2.4	34.5 ± 3.3
Clinical form		—
Nonerosive	12
Erosive	13