Dental stain removal and prevention
Provided herein is a method for removing a chemical stain from a dental surface or inhibiting chemical staining of a dental surface, comprising contacting the dental surface with an oral care composition comprising zinc phosphate and an orally acceptable carrier.
1. A method for inhibiting chemical staining of a dental surface, comprising pre-treating the dental surface with zinc phosphate, wherein the zinc phosphate is provided in an oral care composition in an amount of 1%-1.5% by wt. of the composition, comprising an orally acceptable carrier and cocoamidopropyl betaine, and wherein after contacting the dental surface with zinc phosphate, the dental surface is exposed to coffee, and wherein a chemical staining resulting from such exposure is inhibited by contact of the dental surface with the zinc phosphate;
wherein the oral care composition is a dentifrice; and
wherein pre-treating the dental surface with zinc phosphate comprises rinsing, spraying or brushing the dental surface with the oral care composition comprising zinc phosphate, placing the composition on the dental surface, chewing the composition, or placing the composition in a dental tray and placing the tray so as to contact the dental surface.
2. The method according to claim 1 , wherein the oral care composition further comprises one or more agents selected from: surfactants, desensitizing agents, whitening agents, tartar control agents, binders, thickening agents, detergents, adhesion agents, foam modulators, pH modifying agents, mouth feel agents, sweeteners, flavorants, colorants, preservatives, humectants, fluoride sources and combinations thereof.
3. The method according to claim 1 , wherein the oral care composition is free of whitening agents other than the zinc phosphate.
4. The method according to claim 1 , which comprises increasing the whiteness of the dental surface.