Abstract:
Oral cancer is a public health problem in the South Asian region, including Sri Lanka,
because of its high prevalence. Usually oral cancer does not appear "de novo" and it is
preceded by a precancerous lesion or condition. Seventy five percent of floor of the mouth
cancer were detected among alcoholic patients those who consume alcohol only. With
increasing the frequency of betel chewing (number per day ) the risk of inflicting buccal
mucosal cancer also increased. Highest precentage of buccal mucosal cancer (69 per cent)
was found among those who kept the quid in the mouth overnight
