Evaluation of Salivary Secretor Status of Blood Group Antigens in Patients with Oral Lichen Planus.

Objective: To investigate the relationship between secretion or nonsecretion of blood group antigens into the saliva and oral lichen planus (OLP).

Subjects And Methods: In this study, 30 patients (women: 22, men: 8) with OLP were examined as the case group and 30 subjects without OLP matched for age and gender as the control group. Diagnosis of OLP was confirmed by clinical and histopathological examinations according to WHO criteria.