How was it first discovered that flouride was beneficial to oral health?
From the Salon article cited below: "Ironically, science first discovered fluoride's benefits in the early part of this century by stumbling upon what happened when people got too much of it. Researchers noticed that children raised in Colorado Springs, Colo., suffered from severe staining and mottling of their teeth, but were also blessed with a low rate of tooth decay. A check of the water supply revealed that it was naturally fluoridated, according to a history compiled by the National Institutes of Health."
Source(s):
http://www.salon.com/health/feature/2000...
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