Psychological factors associated with oral lichen planus.

50 patients with oral lichen planus (LP) were investigated for current anxiety and depression and for related personality factors. Anxiety levels, as measured on the Hospital Anxiety and Depression (HAD) Scale, were elevated in 50% of cases while depression scores, measured on the same scale, were low in all but a few. The sample profile showed a slight tendency towards anxiety, as measured by the Cattell 16 PF Questionnaire, but did not confirm previous reports of high intelligence and intellectual orientation. There were no statistically significant associations between erosive oral LP and either anxiety or depression, as measured on the HAD Scale, or anxiety as measured by the Cattell 16 PF Questionnaire.