What’s topical fluoride, and when should I use it?
Topical fluoride is applied directly to the teeth. It is found in products containing strong concentrations of fluoride to fight tooth decay, such as toothpastes and mouth rinses. These products are then expectorated or rinsed from the mouth without swallowing. Dentists recommend brushing with a fluoride toothpaste at least twice a day or after every meal, combined with a regimen of flossing and regular dental checkups.
Professionally administered topical fluorides such as gels or varnishes are applied by a dentist and left on for about four minutes, usually during a cleaning treatment. For patients with a high risk of cavities, the dentist may prescribe a special gel for daily home use, to be applied with or without a mouth tray for up to six weeks.
