Abstract
The squamous cell carcinoma (SCC) is a malignancy derived from stratified squamous epithelium and represents the most common type of oral cancer. In Brazil, 600,000 new cases of cancer are expected to occur in 2018, of which 14,700 would be affections of oral cavity. The prognosis is mostly based on the tumour, node and metastasis (TNM) staging system. However, the TNM classification assu…