Abstract
In Brazil, the cancer appears as the second cause of mortality, second only to cardiovascular disease. The estimates for cancer of the oral cavity is about 9990 new cases in men and women in 4180, to Brazil in 2012. These values correspond to an estimated risk of 10 new cases per 100 000 men and 4 per 100 thousand women. Advances in understanding the biology of head and neck cancers have …