The Effectiveness of Mindfulness Based Stress Reduction (MBSR) Therapy on Psychological Distress among Patients with Oral Lichen Planus

INTERVENTION: Intervention 1: Intervention group: Mindfulness Based Stress Reduction was created by Kabat‐Zinn (1990), This Treatment is an Eight Week Evidence based Program. The Main Contents of the Treatment are: a) Relaxation Training, Meditation and Mind‐Body Connection. b) Teaching Meditation and Yoga Exercises inside and outside the Treatment Session and during the Day c) Removing Barriers to Successful Education, Providing Brochures Related to the Instructions of each Session that were given to the Clients and Daily Homework Exercises. Intervention 2: Control group: The control group does not receive any other treatment except its drug treatment. CONDITION: Oral Lichen Planus. ; Lichen planus PRIMARY OUTCOME: Pain Catastrophizing. Timepoint: Before the Intervention, After the Intervention. Method of measurement: Pain Catastrophizing Scale. Psychological Disturbance Score in DASS‐21. Timepoint: Before the Intervention, After the Intervention. Method of measurement: DASS‐21. SECONDARY OUTCOME: Quality of Life Related to Oral Health. Timepoint: Before the Intervention, After the Intervention. Method of measurement: Oral Health Impact Profile‐14 (OHIP‐14). Severity of Pain and Burning. Timepoint: Before the Intervention, After the Intervention. Method of measurement: Visual Analouge Scale. Shape and Size of the Lesions. Timepoint: Before the Intervention, After the Intervention. Method of measurement: Thongprasom Scale. INCLUSION CRITERIA: Oral Lichen Planus Patients whose Disease has been Diagnosed through Biopsy and Histopathology Results. Patients who are in the Symptomatic Phase of the Disease.