Sixty percent of America's water supply is fluoridated yet there are no studies to prove that ingesting fluoride is beneficial. In fact studies prove quite the opposite. Studies prove that there is more than a 10% increase in cancer rates of people in fluoridated communities, increased bone fractures and it also does a lot of neurological harm. It also concentrates in the hippocampus. Girls in fluoridated communities go through puberty earlier also. In Animal studies, when given to pregnant females their offspring were observed to be hyperactive, when given to an animal after birth the animals behavior became apathetic. I have done a lot of studying on the subject and will not even give my children fluoride toothpaste. I think I used to by the nursery water with added fluoride for my daughter as a baby and the thought makes me sick. Trust me the more you dig into the subject the less you will want to use fluoride (even if it meant your teeth would rot out and that is definitely not going to happen anyways). The original study that got the fluoride ball rolling was done in Michigan, I believe, the study monitored cavities in citizens in two towns, one fluoridated the other not. After the study was over, they announced that the town, that was fluoridated, had a decrease in tooth decay; never mentioning the fact the the non-fluoridated community also had a decrease in tooth decay (only more so)! to find more info about fluoride you will probably need to look outside of any government or company sponsored information. You might also appreciate a lecture by a professor of the name Paul Connet.