Pilot survey of oral mucosa in areca (betel) nut chewers on Hainan Island of the People's Republic of China


J. J. Pindborg, Royal Dental College, 3 C Blegdamsvej, DK-2200 Copenhagen N, Denmark.


Abstract 100 people on Hainan Island were studied for their smoking and chewing habits and the condition of their oral mucosa. Ninety-five percent of the study population chewed areca (betel) nut. In men this habit was supplemented with either smoking cigarettes or water pipe. In two men a small commissural leukoplakia was found. In three women clinical and histologic changes pointed towards oral submucous fibrosis.