Dentifrices containing zinc oxide particles and sodium bicarbonate
First Claim
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1. A dentifrice in the form of a toothpaste or tooth gel which is free of more soluble zinc salts and their lingering unpleasant metallic and astringent taste and which comprises:
- a. about 3-70% sodium bicarbonate;
b. an effective amount of agglomerated zinc oxide particles, which particles have a median particle size of 50 microns or less, are agglomerated from primary particles having a sub-micron average particle size, and act as an anti-plaque, anti-gingivitis, anti-bacterial and tartar formation inhibiting agent;
c. a liquid vehicle in an amount sufficient to provide the desired consistency; and
d. an effective amount of an anti-caries agent.
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Abstract
Zinc oxide particles, preferably agglomerated, are added to dentifrices such as toothpastes, tooth gels, or tooth powders to inhibit the formation of plaque. The dentifrices contain sodium bicarbonate and other conventional ingredients such as thickeners, anti-calculus agents such as a pyrophosphate salts, anti-caries agents such as sodium fluoride, flavorings, sweetening agents, and/or secondary abrasives.
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Citations
12 Claims
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1. A dentifrice in the form of a toothpaste or tooth gel which is free of more soluble zinc salts and their lingering unpleasant metallic and astringent taste and which comprises:
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a. about 3-70% sodium bicarbonate; b. an effective amount of agglomerated zinc oxide particles, which particles have a median particle size of 50 microns or less, are agglomerated from primary particles having a sub-micron average particle size, and act as an anti-plaque, anti-gingivitis, anti-bacterial and tartar formation inhibiting agent; c. a liquid vehicle in an amount sufficient to provide the desired consistency; and d. an effective amount of an anti-caries agent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification