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US 4,902,497 AGranted
Oral compositions
AssigneeThe Procter & Gamble Company
InventorsMark M. Crisanti, Anthony C. Lanzalaco, Richard J. Sunberg
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Abstract
Methods for reducing calculus are disclosed utilizing oral compositions containing stannous ions complexed with certain carboxylic acids or polyhydric alcohols.
Claims5
A method effective in reducing calculus comprising applying to dental enamel of subjects susceptible of forming calculus a safe and effective amount of a toothpaste composition containing:
- (a) at least 1000 ppm stannous ions from stannous chloride;
- (b) a mono or di carboxylic acid or polyhydric alcohol complexing agent having an equilibrium binding constant for stannous of less than about 10.sup.5 which is gluconic acid or a water soluble salt thereof;
- (c) an acceptable toothpaste carrier;
- wherein the pH of said composition is from about 3.5 to about 7.0.
1 more element
Dependencies are inferred from the claim text.