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US 5,180,576 AGranted
Anticalculus dentifrices
AssigneeChurch & Dwight Co., Inc.
InventorsAnthony E. Winston, Regina M. Miskewitz, Darlene R. Walley, John R. Berschied
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AssigneeChurch & Dwight Co., Inc.
InventorsAnthony E. Winston, Regina M. Miskewitz, Darlene R. Walley, John R. Berschied
Estimating the term…
Dentifrices, including toothpastes or dental creams, gels and tooth powders, incorporating alkali metal pyrophosphate salts and sodium bicarbonate in amounts effective to inhibit calculus formation on teeth. The sodium bicarbonate improves the calculus inhibiting properties of the pyrophosphate salts, permits the use of smaller quantities of pyrophosphate than required in the absence of the bicarbonate adjuvant, allows the formulation of pyrophosphate containing dentifrices without the need to use unpleasant tasting potassium pyrophosphates to prevent grittiness, and salts-out the pyrophosphate as undissolved tetrasodium pyrophosphate decahydrate in the form of relatively small particles which do not impart a gritty mouth feel upon use of the dentifrice.
A dentifrice composition comprising a toothpaste or dental gel for inhibiting calculus formation incorporating, in an orally acceptable vehicle,
In a method of inhibiting the formation of dental calculus, involving applying to the teeth a dentifrice composition containing from 2.5 to 15% by weight of an alkali metal pyrophosphate salt and a fluoride ion source in an amount sufficient to supply from 25 to 5,000 ppm fluoride ion;
A method of enhancing inhibition of the formation of dental calculus and improving acceptance of the dentifrice utilized therefor, which comprises applying to the teeth a toothpaste or gel comprising, in an orally acceptable vehicle,
Dependencies are inferred from the claim text.