As a medicinal chemist, I deal with the concept of toxicity every day. Simply put, the concept of toxicity is meaningless without an association with a dose. The old saying (from the physician Paracelsus, in the 1500s!), is “it is the dose that makes the poison”. Everything is toxic at some dose: salt, sugar, baking soda, vinegar, tabasco sauce, aspirin, and even pure water. That doesn’t mean that each of those substances should be banned. Certainly, some things are toxic at even vanishingly small doses (many of the components in tobacco smoke, for instance), and so the logical recommendation is to avoid tobacco smoke (even secondhand smoke) completely. But that is not the case with most things, including fluoride.
I am not a dentist, but evidence shows that at the doses present in drinking water and toothpaste, it has clear benefits without measurable adverse effects. It’s why at my alma mater (Indiana University) chemists and dentists together invented fluorinated toothpaste in the 1950s, licensing the patent rights to Proctor and Gamble, who gave us Crest. 70 years ago, the clinical trials run in Bloomington Indiana showed a 30% reduction in cavities. Such studies have been validated over and over again, not just for toothpaste but also for fluoride added to public drinking water at a defined low dose.
This is another case where science is true, whether you choose to believe it or not.
RFK Jr. is a bigger quack than any duck.
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