What is the recommended concentration of fluoride varnish?

Fluoride varnish is widely recommended for its effectiveness in preventing dental caries, especially in at-risk populations. The ideal concentration used in clinical settings is typically 22,600 ppm fluoride. This concentration provides a high level of fluoride exposure to the tooth structure, which enhances the remineralization process and helps to reduce the risk of decay.

The 22,600 ppm concentration is optimal for topical application because it allows for effective localized fluoride delivery when applied directly to the teeth, making it particularly beneficial in pediatric dentistry and for patients with high caries risk.

Other concentrations mentioned do exist, but they are either higher or lower than the standard dosage considered most efficacious in fluoride varnish applications. High concentrations like 50,000 ppm may lead to toxicity issues and are not used in varnish form, while lower concentrations such as 5,000 ppm and 10,000 ppm, while still effective, do not provide the same level of fluoride benefits as the 22,600 ppm formulation in preventive applications.