I think a good test to see if putting fluoride in drinking water is bad for you would be:

Have a look at the countries that are ( or were ) doing the fluoridating, and see how much bottled water they drink!

Could it be said that fluoridation leads to a lack of maturity, or rather, the chance of experiencing maturity? Don't aluminium related illness' bring about premature senile dementure and other such related traits?