Fluoride is a mineral that occurs naturally in soil, water, and various foods. It may also be added to municipal water and is found in most toothpaste. In weighing the pros and cons of fluoride for teeth, researchers and dentists have found fluoride provides positive effects on dental health because it makes teeth more resistant to decay. It also can prevent tooth decay or even reverse it.
The Canadian Dental Association (CDA) supports using fluoride in dentistry as one of the most highly successful preventative health measures in history. More than 50 years of extensive research worldwide has consistently shown the effectiveness and safety of fluoride in preventing tooth decay.