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.