Abstract
Oral squamous cell carcinoma (OSCC) is a malignant neoplasm with high morbidity and mortality rates. Oral potentially malignant disorders such as oral leukoplakia (OL) and proliferative verrucous leukoplakia (PVL) are precursor lesions of OSCC. Understanding the process of malignancy of these lesions can anticipate the diagnosis of OSCC, improve the prognosis and bring therapeutic opportu…