Evaluation of Diode Laser and Topical Steroid Therapy in the Treatment of Erosive Oral Lichen Planus

Inclusion Criteria: * Patient histologically diagnosed with erosive OLP based on WHO modified criteria 2003. * Presence of painful erosive OLP lesions diagnosed by biopsy Exclusion Criteria: * Pregnant or breast-feeding women * Patients currently treated for cancer with Chemotherapy or Radiotherapy * Patient currently on Corticosteroid therapy or had this treatment on the past 3 months * Those who had used Anti-inflammatory drugs topical or systemic in the last month * the use of drugs related to Oral Lichenoid Lesions * Presence of Amalgam restorations near the OLP lesions * dysplasia in histopathological examination * uncontrolled systemic diseases * physical or mental abnormality which would interfere with or be affected by the study procedure * Patients with skin lesion