Résumé
Oral cancer affects as many as 274000, people worldwide annually. Tobacco use is one of the major preventable cause of premature death and disease in the world. TSNAs are considered the most potent classes of carcinogens with N-nitrosonornicotine (NNN) and 4- (methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK). Risk Factors for Smoking includes family factors, school factors, peer factors, community factors, stress and domestic violence. Tobacco is an integral part of the culture and tradition in many countries of the South-East Asia Region. Tobacco use resulting in 5.4 million deaths every year. A new term, "thirdhand" smoke, has been proposed to describe the particulate residual toxins deposited in layers all over the home furniture after a cigarette has been extinguished. Many countries are putting ban for smoking in public places. Half measures are not enough, when one form of advertising is banned; the tobacco industry simply shifts its vast resources to another channel. Governments are urged to impose a complete ban to break the tobacco marketing net. An effort is made to comprehend articles on tobacco by searched from journals through Google and Ebscohost.