Hardy Limeback, PhD, DDS, is a professor emeritus at the University of Toronto Faculty of Dentistry, and he served as chair of the university's Department of Preventive Dentistry for 18 years. He has maintained a private dental practice in Mississauga, Ontario, for the past 21 years. Limeback is a fellow of the Pierre Fauchard Academy and editor of the textbook Comprehensive Preventive Dentistry, published in 2012 by Wiley-Blackwell.