Fluoride is nature’s cavity fighter. Like any natural nutrient, it is safe and effective when used properly. Fluoride incorporates itself into tooth enamel and strengthens it, making it more resistant to cavities.
There are two methods that protect teeth with fluoride:
Topical: toothpaste, mouth rinses, and professionally applied fluoride treatments are examples of topical fluoride. Topical fluoride strengthens and protects teeth that have already erupted.
Systematic: fluoridated drinking water and fluoride supplements (tablets or liquid drops) are examples of systematic fluoride. Systematic fluoride protects tooth structures as they are forming.