How and why does fluoride help teeth?

For people of all ages, fluoride is nature's cavity fighter and, along with proper brushing and flossing, is one of the most effective ways of preventing tooth decay and improving oral health.

For children, fluoride works by making tooth enamel harder and more resistant to the acid that causes tooth decay. It is very important for parents to make sure that their children are receiving the recommended amount of fluoride.

For adults, fluoride helps repair the early stages of tooth decay even before it becomes visible in the mouth. This process is known as remineralization.