My understanding is that fluoridation of municipal water supplies serves a different purpose than fluoride in toothpaste. The fluoride in the water supply is low concentration and is intended to cause teeth to develop with stronger cavity resistance, toothpaste is a much more superficial and immediate measure.
toast0|1 year ago
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486sx33|1 year ago
https://www.wcvb.com/article/chinese-fluoride-in-mass-water-...
Grazester|1 year ago