Incorporation of Fluoride by Human Enamel: III. In Vivo Effects of Nonfluoride and Fluoride Prophylactic Pastes and APF Gels

Abstract

Prophylactic procedures with a nonfluoride paste decrease the enamel surface fluoride concentration, whereas a sodium fluoride paste tends to prevent this loss. Topical acidulated phosphate-fluoride gel treatments exceed the equilibrium of enamel fluoride concentrations that are obtained subsequently by a second-order fluoride loss reaction.