this study evaluates the effect of diode laser in treatment of oral lichen planus.

44 patients with erosive oral lichen planus were included in the study and divided into 2 equal groups. Group I received topical steroid therapy three times daily for 4 weeks and antifungal oral gel once daily for 1 week. Group II received 980nm Diode Laser 300 mW, up to 10 sessions.

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

Access to the data may be extended beyond the initial 24-month period upon request and approval, which will also be evaluated on a case-by-case basis.

The submission of data requests can commence nine months after the article has been published, and the data will be available for up to 24 months. Extensions will be reviewed on a case-by-case basis.

Qualified researchers who are conducting independent scientific research may request access to trial IPD. Upon review and approval of a research proposal and Statistical Analysis Plan (SAP), and the execution of a Data Sharing Agreement (DSA), access will be granted. For additional information or to request access, please contact the data provider. Approval for the extension of access beyond the initial 24-month period will also be considered on a case-by-case basis.

the patients were randomly assigned to avoid bios.