First let me be clear: I'm not a crazy conspiracy person (...on this) I just don't rely on a municipal well. As far as I know adding fluoride to the private well at my houses is not a thing, good or bad. I did drink municipal water for two years when I lived on campus in college.
That said, is fluoride a benefit to adults or just children?
When I was a kid I got fluoride treatments at the dentist, but then aged out. I've never had a cavity in forty years, but I'd like to keep it that way. Should I still be doing it?
Also no, I'm not using the internet as a substitute for a dentist, just my next dental appointment is in four months. TIA
Chances are unless you're actively trying to avoid it the toothpaste you use has it already. I'm not aware of any particular benefits or detriments to having it in the water supply versus the more direct application route.