Precancerous lesions precede the development of oral cancer; of several clinical types the most common is leukoplakia. The risk factors include tobacco and excess alcohol use and diets low in antioxidants. Studies concerning the management of risk factors related to oral precancer are meager.
Department of Oral Medicine and Pathology, WHO Collaborating Centre for Oral Cancer and Precancer, Guy's, King's & St Thomas' Dental Institute, King's College, London, UK.
