What is Fluoride Varnish?

Most Fluoride varnishes are lacquers containing 5% fluoride in a colophony/resin base. Fluoride varnish provides a highly concentrated, temporary dose of fluoride to the tooth surface. The varnish holds the fluoride close to the tooth surface for a longer period of time than other concentrated fluoride products. Unlike low dose fluorides available over the counter such as fluoride toothpaste, highly concentrated fluoride products such as fluoride varnish must be applied by a dental professional.