Is Director of Clinical Method Development for the Oral Care Research and Development Division of the Colgate-Palmolive Company in the United States. He is also a Director of the Colgate Palmolive Dental Health Unit, a unique collaboration between Colgate Palmolive and the University of Manchester, UK. The Unit specializes in Public Health Research and the development of clinical trial methods.
Roger has a Bachelor of Dentistry degree from Liverpool University, A Master of Dental Surgery and Doctor of Philosophy degree from University College Cork and a Master of Science Degree from the University of Manchester. He holds an Honorary Chair in Dental Diagnostic Science at the University and is a recognized Specialist in Dental Public Health. His research is focused on diagnostic science and in particular caries and periodontal disease. He is also a world renowned expert on fluoride and fluorosis. He is the author of over 100 peer reviewed scientific articles and book chapters and is a regularly invited speaker at international conferences.