Prevalence of tobacco and areca-nut use among patients attending dental teaching hospital in the central province of Sri Lanka and its association with oral mucosal lesions; a cross sectional study

Introduction: Tobacco and areca-nut are risk factors for oral cancer and potentially malignant disorders. Oral cancer is ranked as the commonest among males in Sri Lanka (18.4 %). This research aims to determine the prevalence of tobacco and areca-nut use and its association with oral lesions. Method: It is a cross-sectional study using 368 patients attending the Dental Diagnostic Clinic. Details of tobacco and areca-nut use were collected and participants were examined for mucosal lesions. Results: It revealed that 23.9 % had tobacco use. Out of these, 41.1 %, 22.2 % and 36.7 % had smokeless-tobacco use, smoking and both, respectively. Similarly, 25.3 % had areca-nut/betel-quid use and majority (72.8 %) added tobacco to it. Tobacco (93.2 %) and areca-nut (79.6 %) use was higher among males (p 90 % of those who used tobacco and areca-nut had oral lesions (p