Question Earthority!

“Communities began adding fluoride to water supplies in the early 1940s after decades of studies into why some Colorado residents were exhibiting a discoloration or ‘mottling’ of the teeth but at the same time very low rates of actual decay. The culprit turned out to be high concentrations of a naturally-occurring fluoride that was running off into the water from Pike’s Peak after rainfalls. Research later concluded that adding small, controlled amounts of fluoride into public water supplies would act as a form of community-wide cavity prevention without causing the undesirable mottling known at the time as ‘Colorado stain.’” (06/25/07)