Sodium fluoride (NaF) is a chemical compound known for its dental health benefits. It is a white, crystalline powder that is widely used in toothpaste, mouthwash, and other oral care products. Sodium fluoride helps prevent tooth decay and cavities by strengthening tooth enamel and making it more resistant to acid attacks from bacteria.

In dentistry, sodium fluoride is applied topically to teeth or used in community water fluoridation programs to improve oral health. It works by remineralizing the enamel, repairing early stages of tooth decay, and inhibiting the growth of harmful oral bacteria. Sodium fluoride has been a key contributor to the decline in tooth decay rates in many communities.