Abstract
Several studies emphasize oral squamous cell carcinoma (OSCC) as an entity distinct from oropharyngeal squamous cell carcinoma (OPSCC). While OSCC commonly affects elderly patients and is related to the use of tobacco and alcohol, OPSCC affects young patients, in close association with human papillomavirus (HPV) infection and has a better prognosis. Data from Brazil show that from 5% to 2…