Gwen Cohen Brown, DDS, FAAOMP, is a professor in the Department of Dental Hygiene at City Tech and a fellow in the Academy of Oral and Maxillofacial Pathology. She is also the dental expert for WebMD, an online publisher of health-related information. Brown serves as a faculty member at the New York and New Jersey AIDS Education and Training Center. She has published and lectured extensively on the topics of human immunodeficiency virus/acquired immune deficiency syndrome, common oral lesions, infection control, and oral cancer since 1992.