Dr. Winkler is internationally recognized for his work on HIV. Dr. Winkler received his DDS and PhD in Biological Sciences from the State University of New York at Buffalo and a Certificate in Periodontics from the University of California at San Francisco. Dr. Winkler currently teaches interdisciplinary courses in biological basis to soft tissue disease to both dental and dental hygiene students. His interests include the management of oral manifestations of immunocomprimised patients. His research focuses on histopathogenesis of periodontal diseases.