Edward C.M. Lo is currently Chair Professor of Dental Public Health in the Faculty of Dentistry in the University of Hong Kong. He is a guest/visiting professor in a number of major dental schools in China. He is a past President of the International Association of Dental Research (IADR) Southeast Asian Division and that of the Asia-Pacific Region, and a past IADR Treasurer. Prof. Lo is the Chairman of the Specialty Board of Community Dentistry of the College of Dental Surgeons of Hong Kong (CDSHK). His research interest is in oral epidemiology, oral health care delivery and preventive dentistry. He has published over 300 papers in international scientific journals. Prof. Lo has conducted many clinical trials using various topical fluoride agents in the prevention of dental caries, and the use of various agents to arrest active decay in the primary teeth of young children.