If fluoride was so good for you why doesn't the rest of the world use it? Fluoridation is predominantly an American practice. Many socialized countries have removed fluoride from their water. Water is drank, its not swished around the mouth and spat out. Fluoride only helps teeth when it comes in contact with enamel, it does your teeth no good in your belly. Know how they found out Fluoride did stuff to your teeth? Cuz high levels of it fucks teeth up, bad.