fluoride causes fluoridosis, which is brittle teath with brown mottling. there is not only fluoride in your toothpaste, its probably in your water, in all of your food, in your commercial cigs for sure, i will bet you have stainmaster carpet and stainproofing in your car, and you have teflon pans. getting rid of all of that will be a start. drink only distilled water, eat sea veggies and raw greens like spinach and wheatgrass. that is your best bet. dont forget, certified organic only(or grow your own without chemicals) or it has fluoride - bet on it.