Oral care compositions and methods of use
This invention relates to oral care compositions comprising a zinc source comprising zinc oxide and zinc citrate; a stannous source comprising stannous pyrophosphate; a fluoride ion source comprising sodium fluoride; and an organic buffer, as well as to methods of using and of making these compositions.
1. An oral care composition comprising:
a. A zinc source comprising zinc citrate and zinc oxide, wherein the zinc citrate is in an amount of 0.5 wt % and zinc oxide is present in an amount of 1 wt % based on the total weight of the composition;
b. A stannous source comprising stannous pyrophosphate, wherein the stannous pyrophosphate is present in an amount of 1 wt % based on the total weight of the composition;
c. A fluoride ion source comprising 0.24% by wt sodium fluoride; and
d. An organic acid buffer, wherein the organic acid buffer is a citrate buffer, wherein the citrate buffer is in an amount of 2.1% by wt and comprises citric acid and tri-sodium citrate; and
wherein the oral composition is selected from the group consisting of: a toothpaste, a mouthwash, a topical oral gel, and a denture cleanser.
2. The oral care composition of claim 1 , wherein the citric acid is in an amount about 0.6% by wt., and the tri-sodium citrate is in an amount about 1.5% by wt.
3. The oral care composition of claim 1 , wherein composition comprises a copolymer.
4. The oral care composition of claim 3 , wherein the copolymer is a PVM/MA copolymer.
5. The oral care composition of claim 1 , wherein the composition further comprises sodium tripolyphosphate.
6. The oral care composition of claim 5 , wherein the sodium tripolyphosphate is present in an amount of from 0.5-5.0 wt %, based on the total weight of the composition.
7. The oral care composition of claim 1 , wherein the composition further comprises glycerin, wherein the glycerin is in a total amount of 20-50%, based on the total weight of the composition.
8. The oral care composition of claim 1 comprising a whitening agent.
9. A method to improve oral health comprising applying an effective amount of the oral composition of claim 1 to the oral cavity of a subject in need thereof.