A dental fluoride foam composition comprising an aqueous solution of a watersoluble fluoride ion releasable salt；a surfactant selected from the group consisting of nonionic surfactants,zwitterionic surfactants, betaine surfactants and mixturesthereof； and an orally compatible acidifying agent in an amount sufficient toadjust the pH of the composition to about 3 to about5. The composition is stable at low temperatures and is a clear solutionsubstantially free of precipitates when held at 4.4°C for 12hours. When dispensed from a container into the trough of a dental tray, thecomposition forms a low density, rapidly collapsiblefoam which substantially liquefies in about 1 minute after being dispensedfrom the foam generating container and placed in contactwith a patient's teeth.
