60 years ago we didn’t have the facts. Back then, few were concerned about risks to children from lead or second-hand smoke. In the same way, most people in 1952 thought drinking fluoridated water would reduce tooth decay with no risk beyond a few children with discolored teeth. It’s now known that water fluoridation is a much riskier practice than once believed and it does NOT prevent cavities.
“Common sense should tell us that if a poison circulating in a child’s body can damage the tooth-forming cells, then other harm also is likely.” — Dr. John Colquhoun (1997).