A dental fluoride foam composition comprising an aqueous solution of a water soluble fluoride ion releasable salt, a surfactant selected from the group consisting of nonionic surfactants, zwitterionic surfactants, betaine surfactants and mixtures thereof； and an orally compatible acidifying agent in an amount sufficient to adjust the pH of the composition to about 3 to about 5. The composition is stable at low temperatures and is a clear solution substantially free of precipitates when held at 4.4° C. for 12 hours. When dispensed from a container into the trough of a dental tray, the composition forms a low density, rapidly collapsible foam which substantially liquefies in about 1 minute after being dispensed from the foam generating container and placed in contact with a patient's teeth.
