Timothy DeRouen, Ph.D., is Director of the Summer Institute. He is Professor of Biostatistics (Public Health) and Dental Public Health Sciences (Dentistry), Executive Associate Dean for Research and Academic Affairs in the School of Dentistry and Director of the Comprehensive Center for Oral Health Research. He has over thirty years experience consulting and teaching in biomedical applications of statistics, especially in clinical medicine and dentistry, and has particular interests in the design and analysis of studies of periodontal disease.