Oral care whitening compositions
Described herein are whitening compositions comprised of a peroxide component, and an adhesion system, which effectively provide whitening using a remarkably low level of peroxide. Methods of making and using these compositions are also described herein.
1. A non-aqueous oral care composition comprising:
a peroxide component comprising a peroxide source in the amount of 0.05% to 0.15% of the total weight of the composition; and
40% to 80% of an adhesion system comprising:
a hydrophobic component comprising a silicone adhesive, a silicone fluid and a dental surface adhesion enhancing agent comprising crosslinked polyvinylpyrrolidone that is not complexed with a peroxide source;
wherein the composition when applied to the teeth is sufficiently viscous to form an adherent, continuous layer on a dental surface and deliver an effective amount of said peroxide source to a tooth surface
wherein the composition is substantially anhydrous.
2. The composition of claim 1 wherein the peroxide source is selected from the group consisting of hydrogen peroxide; urea peroxide, sodium percarbonate, sodium perborate; and a combination of two or more thereof.
3. The composition of claim 1 , wherein the peroxide component further comprises cross-linked polyvinylpyrrolidone, wherein the peroxide source is complexed with the cross-linked polyvinyl pyrrolidone.
4. The composition of claim 1 wherein the peroxide source is hydrogen peroxide.
5. The composition of claim 1 wherein the peroxide source is present in an amount from about 0.08% to about 0.12%, by weight of the composition.
6. The composition of claim 1 , wherein the peroxide source is present in the amount of about 0.1%, by weight of the composition.
7. The composition of claim 1 , wherein the silicone adhesive is a pressure sensitive silicone adhesive.
8. The composition of claim 7 , wherein the pressure sensitive silicone adhesive is a copolymer prepared by condensing a silicone resin with a dihydroxy polydiorganosiloxane.
9. The composition of claim 8 , wherein the dihydroxy polydiorganosiloxane is dihydroxy polydimethylsiloxane.
10. The composition of claim 1 , wherein the silicone resin is a silanol-containing silicone resin.
11. The composition of claim 1 , wherein the dental surface adhesion enhancing agent is present in an amount of about 15% to about 25%, by weight, of the composition.
12. The composition of claim 1 , wherein the dental surface adhesion enhancing agent is present in the amount of about 16% to about 20%, by weight, of the composition.
13. The composition of claim 1 , wherein the dental surface adhesion enhancing agent is present at a concentration of about 18%, by weight, of the composition.
14. A method for whitening a tooth comprising applying a composition of claim 1 to a tooth of a mammal.
15. The method of claim 14 , wherein the composition is applied using a pen.
16. The method of claim 14 , wherein the composition is maintained on the surface of the tooth for a plurality of minutes.