Fluoride is a chemical that helps prevent tooth decay. It is added
to local water supplies, toothpastes, and other mouth care products.
Fluoride controls bacteria and makes teeth stronger and more
resistant to decay. Fluoride also helps repair teeth that have already been
slightly damaged by plaque.
Fluoride supplements are available by prescription if
concentrations in the local water supply are too low. Usually, fluoride levels
are only low in well water and some water supplies in rural areas.
