Oral care compositions and methods of use

1. An oral care composition comprising:

a. a basic amino acid in free or salt form, wherein the amino acid is L-arginine in an amount of about 1.5 wt. %;

b. zinc oxide and zinc citrate, wherein the zinc citrate is in an amount of about 0.5 wt. % and zinc oxide may be present in an amount of about 1.0 wt. % based on the total weight of the composition;

c. a fluoride source comprising stannous fluoride, wherein the stannous fluoride is present in an amount from 0.1 wt. % to 2 wt. % based on the total weight of the composition, and wherein the stannous fluoride provides about 750-7000 ppm fluoride; and

d. about 5% small particle silica, based on the total weight of the composition.

2. The oral care composition of claim 1 wherein the amino acid is arginine in free form.

3. The oral care composition of claim 1 wherein the amino acid is arginine partially or wholly in salt form.

4. The oral care composition of claim 1 , wherein the fluoride source further comprises at least one member selected from the group of: sodium fluoride, potassium fluoride, sodium monofluorophosphate, sodium fluorosilicate, ammonium fluorosilicate, amine fluoride (e.g., N′-octadecyltrimethylendiamine-N,N,N′-tris(2-ethanol)-dihydrofluoride), ammonium fluoride, titanium fluoride, hexafluorosulfate, and combinations thereof.

5. The composition of claim 1 , wherein stannous fluoride provides soluble fluoride in an amount of about 1000-5500 ppm.

6. The composition of claim 1 , wherein stannous fluoride provides soluble fluoride in an amount of about 5000 ppm.

7. The oral care composition of claim 1 further comprising:

d. about 39.2% glycerin based on the total weight of the composition.

8. The oral care composition of claim 1 , wherein the oral composition may be any of the following oral compositions selected from the group consisting of: a toothpaste or a dentifrice, a mouthwash or a mouth rinse, a topical oral gel, and a denture cleanser.