Fluoride is a naturally occurring element that strengthens teeth. This can help to prevent tooth decay.

Fluoride treatments commonly are given to children as their teeth are developing. A child who has a history of cavities or is at high risk of decay should use additional fluoride. This promotes remineralization of the teeth. Many children get fluoride treatments every six months. The treatments provide extra protection against cavities, even if children already drink fluoridated water.

Professional fluoride treatments generally take just a few minutes. The fluoride may be in the form of a solution, gel, foam or varnish. Typically, it is applied with a cotton swab or brush, or it is used as a rinse or placed in a tray that is held in the mouth for several minutes.