Hawaii has no flouride, right? I mean, Oahu, at least. I lived there for many years, no dental problems that could be even remotely traced back to lack of flouride, in fact no dental problems at all.

Maybe you could get data from their municipal water board or whatever they call it. That's 1 mil people living fine without.

Um, I know more than a few Hawaiians, and not everybody there has healthy teeth to be sure. They ain't quite as bad as the UK, but they aren't really any better than most other places, from what I've seen anyways.