Fluoride varnish has the highest concentration of fluoride of all the PATF methods (22,600 ppm sodium fluoride) and less fluoride is used per application. It has the ability to stay on enamel for ...

California State Assembly member Mia Bonta introduced legislation Jan. 29 that would require Medi-Cal and private insurers to cover fluoride varnish for patients under 21 years old, The Sacramento Bee ...