Patent ID: 8535730
Filing Date: 2013-09-17
Classification: A61K,A61Q

Abstract:
1. An aqueous oral pyrophosphate and fluoride anticalculus dentifrice composition having a pH from about 4.5 to about 10 comprising: (a) from about 10% to about 75% of a dentally acceptable polishing material selected from the group consisting of water-insoluble sodium metaphosphate, potassium metaphosphate, tricalcium phosphate, dihydrated calcium phosphate, anhydrous dicalcium phosphate, calcium pyrophosphate, magnesium orthophosphate, trimagnesium phosphate, calcium carbonate, aluminum silicate, zirconium silicate, silica, bentonite, particulate thermosetting resins and mixtures thereof; and (b) an amount of a fluoride ion source sufficient to provide from about 25 ppm to about 5000 ppm fluoride ions; wherein the improvement comprises the composition containing a mixture of tetrasodium pyrophosphate and tetrapotassium pyrophosphate with these salts being present in an amount of at least 1.3% of pyrophosphate ions being provided and effective to inhibit the formation of dental tartar or calculus on tooth surfaces and wherein more tetrapotassium pyrophosphate than tetrasodium pyrophosphate is used.