I have a charcol filter on my shower, AND I filter my drinking water. I use non flouride toothpaste and I stay away from the stuff.

I understand why they needed to add flouride as many of the childrens teeth in very impovrished areas were rotting out of their heads, but we should have fixed it with better nutrition, not by adding chemicals to our water.

Look Ma! no cavities! now with Flouride! (please dont allow your child to swallow this toothpaste.)