Hardy Limeback , Ph.D., D.D.S., Head of Preventive Dentistry at the University of Toronto and Past President of the Canadian Association of Dental Research, was a prominent advocate for fluoridation. In 1999, he reversed his position, stating "For the past 15 years, I had refused to study the toxicology information that is readily available to anyone. Poisoning our children was the furthest thing from my mind."
Roger Masters , Ph.D., is Research Professor, Department of Government, Dartmouth College. His current research includes an analysis of neurotoxicity associated with pollution, poor diet, and lifestyle as risk factors in violent crime, health, and social behavior.
Myron J. Coplan , Registered PE, Intellequity Technology Services of Natick, Mass., has studied all aspects of water fluoridation for over 40 years.