Fluoride is not an essential nutrient.

In the 1950s, dentists believed that fluoride was a nutrient. A nutrient is a vitamin or mineral that is necessary for good health. Dentists believed that fluoride ingestion during childhood was necessary for strong, healthy teeth. It is now known, however, that fluoride is not a nutrient. 

In short, people can have perfect teeth without consuming fluoridated water or any other fluoride product. As with teeth, no other tissue or cellular process requires fluoride. Accordingly, it is now accepted that fluoride is not an essential nutrient.

Visit this site for full information: www.flouridealert.org