Fluoride is a mineral that helps with cavity prevention. If bacteria is present and it starts to damage the tooth, then fluoride is beneficial to repair the teeth in these early stages. Instead of waiting for major dental decay in the future, it is a good idea to be proactive with preventive treatments.
Fluoride is available through systemic and topical treatments. Examples of systemic fluoride include fluoridated water and supplementation. Topical fluoride products are applied to the surface of the tooth, usually in the form of toothpaste, mouth rinse, or a gel treatment.
You can use over-the-counter toothpaste and mouthwash products that contain fluoride. But, you should talk to a dentist if you need a stronger treatment. Prescription toothpaste can be used that contain high levels of fluoride, or you might consider a one-time treatment in the dental office.