Demographic data
palate, OLP
Age, sex, systemic condition, medication taking and OLP duration since the first diagnosis were collected from the history taking at the first visit. In addition, the OLP locations (e.g. lips, labial mucosa, buccal mucosa, gingiva, tongue, floor of the mouth, and palate), experience with OLP treatment (i.e., new or follow-up patient) and prescribed topical corticosteroids based on their dentists’ clinical judgments were also recorded.