Background: Oral squamous cell carcinoma (OSCC) was the most common form of oral cancer, accounting for nearly 90% of all carcinoma cases in the oral cavity. OSCC frequently occurred in both developing and developed countries. Epidemiological studies on OSCC in Indonesia remained limited. RSUP Dr. Mohammad Hoesin Palembang was a type A referral hospital and the main teaching hospital of the Fac…