Fluoride helps prevent tooth decay by making the tooth more resistant to acid attacks from plaque bacteria and sugars in the mouth. It also reverses early decay. In children under 6 years of age, fluoride becomes incorporated into the development of permanent teeth, making it difficult for acids to demineralize the teeth. Fluoride also helps speed remineralization as well as disrupts acid production in already erupted teeth of both children and adult

What happens during fluoride treatment?

Dentists provide professional fluoride treatments in the form of a highly concentrated rinse, foam, gel, or varnish. The treatment may be applied with a swab, brush, tray, or mouthwash.

These treatments have much more fluoride than what’s in your water or toothpaste. They only take a few minutes to apply. You may be asked to avoid eating or drinking for 30 minutes after the treatment so the fluoride can fully absorb.