How does fluoride help prevent cavities?
Fluoride is a naturally occurring mineral and is one the most effective substances we have today for preventing tooth decay. The use of fluoride to prevent cavities is considered to be one of the most important health advances of the 20th century. Fluoride works in a number of ways: • It incorporates itself into tooth enamel, strengthening teeth against decay. • It promotes re-mineralization of early decay lesions. • It helps to reduce the harmful effects of the mouth bacteria that cause cavities.