A formulation and method of use for neutralizing the acidity in the mouth of a patient. The method comprises taking into the mouth an aqueous solution comprising a water soluble inorganic salt consisting of sodium and/or potassium chloride, a sodium phosphate buffer consisting of sodium monophosphate and/or sodium diphosphate and glycerin in a pH-balanced solution, maintaining the aqueous solution in the mouth for a period of time sufficient to reduce the acidity in the mouth, and thereafter spitting out the aqueous solution. The amount of sodium/potassium chloride present in the aqueous solution may be from about 0.45% to about 2.0% by weight per unit volume. The amount of sodium monophosphate in the aqueous solution may be from about 0.005% to about 0.02% by weight per unit volume, for example. The amount of sodium diphosphate in the aqueous solution may be from about 0.005% to about 0.02% by weight per unit volume. The amount of glycerin in the aqueous solution may be about 0.0005% to about 0.002% by weight per unit volume. The pH of the aqueous solution may be from 6.5 to 7.5. The period of time to maintain the aqueous solution in the mouth may be from about 30 seconds to two minutes.
