Fluoride Treatments

Fluoride in foods, supplements and water enter the bloodstream through the stomach. From there, it is absorbed into the body. In children, the fluoride then becomes available to the teeth that are developing in the jaw.

Topical fluoride products are applied directly to the teeth. They include toothpaste, mouth rinses and professionally applied fluoride treatments. Topical fluoride treatments are in the mouth for only a short time. However, fluoride levels in the mouth remain higher for several hours afterward. Fluoride found in the water and in food products also works this way because the water washes over the teeth and some fluoride remains in the saliva.

Fluoride treatments are given in a dental office. They are applied as a gel, foam or varnish. The fluoride used for these treatments is at much higher strength than mouthwashes or toothpastes.

Fluoride supplements also are available by prescription. They usually are reserved for children who live in areas where the water supply does not contain enough fluoride. Children who need supplements receive them from ages 6 months to 16 years.