Well, if you're okay with putting excess amounts of chemicals on your skin that are targeting your teeth although you may get enough from green tea, I'm not, and many others aren't either. I bought a chlorine filter for my shower, and all my dandruff and skin itching issues have disappeared, so, call it a conspiracy theory or whatever, but you can't beat the facts.

Anecdotes are not data.

I'm not a computer; I'm a human being, and I apply heuristics all the time. Maybe you're not. Anyway, data can be forged, and has been forged numerous times driven by corporate and political interest.

What I do works for me, and works well - I look for fluoride-free products - you can stick with using agricultural waste in your water supply, but I stay off it!