Original ArticlesMarijuana as Promoter for Oral Cancer? More Than a SuspectAhrens, Alessandro G. M. S. DD*; Bressi, Tamara MD†Author Information *Studio Dentistico Ahrens Alessandro, Spoltore (Pe) †ENT Department University Hospital, Chieti (Ch), Italy Reprints: Alessandro G. M. S. Ahrens, Studio Dentistico Ahrens Alessandro, Spoltore (Pe), Italy (e-mail: firstname.lastname@example.org). Addictive Disorders & Their Treatment: September 2007 - Volume 6 - Issue 3 - p 117-119 doi: 10.1097/01.adt.0000210727.30885.88 Buy Metrics Abstract Based on our 5 case reports on marijuana smokers who developed an erythroplastic lesion, we decided to start a larger study to investigate the relationship between drug smoking and oral cancer, as we are aware of the relationship between tobacco smoking and/or alcohol addiction, and oral cancer. To realize this study, we asked many of our colleagues to help us in collecting data from their patients presenting with an erythroplastic lesion who have history of tobacco or drug smoking, but not alcohol addiction. The results we obtained confirmed our hypothesis that marijuana smoking can be considered a promoter for oral cancer, though the process is not understood. © 2007 Lippincott Williams & Wilkins, Inc.