"Over the past several decades, estimates of dentist supply were often related to the opening or closing of dental schools. Concerns about dentist supply and economic conditions, for example, led to decreased enrollment in dental schools in the late 1970s and 1980s.1 Beginning in 1986 and through 1993, six dental schools (Oral Roberts, Emory, Georgetown, Fairleigh Dickinson, Washington University, and Loyola) closed, with Northwestern following suit in 2001; all of these schools were private or private/state-related.2,3 Subsequently, concerns have been expressed about a decreasing supply of dentists,2 as well as problems with geographic distribution (e.g., urban/rural, regional imbalances).48 Since 1997, three new schools (Nova Southeastern in Florida, University of Nevada, Las Vegas, and Arizona School of Dentistry and Oral Health) have opened, including two in states (Nevada and Arizona) that previously did not have a dental school. "