The most common site for squamous cell carcinoma in oral cavity is

Site distribution showed that the most common location of the tumors was 1. Border of the tongue (37%) 2. Alveolarmucosaand gingiva (20%) and 3. Floor of the mouth and ventral tongue (19%). Carcinoma tongue - Carcinoma involving anterior two-thirds of the tongue is commonly seen in men in the age group of 50-70 years. It may also occur in the younger age group and in females. It may also develop on a pre-existing leukoplakia, long-standing dental ulcer or syphilitic glossitis. The vast majority are squamous cell type. Site: Most common site is middle of the lateral border or the ventral aspect of the tongue. Uncommonly, the tip or the dorsum may be involved. (Ref: Textbook of diseases of ENT, PL Dhingra, 7th edition, pg no. 255)