Human papilloma virus in oral squamous cell carcinoma in a Mexican population.

Objective: To determine the human papilloma virus (HPV) infection in oral cancer and its association with smoking and drinking habits.

Study Design: A cross-sectional study was performed; samples were collected from 51 patients with histological diagnosis of squamous-cell carcinoma were collected at the Instituto Nacional de Cancerología in Mexico City. HPV infection was detected by polymerase chain reaction, and the clinical characteristics of this population were analyzed.