An oral care composition comprising a fused silica abrasive, wherein the composition has a stable viscosity.
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1. An oral care composition comprising: a) from about 5% to about 50% of total abrasive, by weight of the composition, the abrasive comprising a fused silica abrasive having a particle size wherein D90 is less than about 50 microns;b) from about 0.01% to about 10%, by weight of the composition, of a
1. An oral care composition comprising: a) from about 5% to about 50% of total abrasive, by weight of the composition, the abrasive comprising a fused silica abrasive having a particle size wherein D90 is less than about 50 microns;b) from about 0.01% to about 10%, by weight of the composition, of a thickening agent selected from the group consisting of carboxyvinyl polymers, carrageenan, alkylated polyacrylates, alkylated cross linked polyacrylates, and mixtures thereof,c) from about 0.025% to about 9% of an anionic surfactant; andd) from about 0.1% to about 99% of a humectantwherein the composition has a stable viscosity; andwherein the composition is in the form of a toothpaste. 2. The composition of claim 1, wherein the viscosity of the composition does not change by more than about 5% after 30 days. 3. The composition of claim 1, wherein the viscosity does not change by more than about 5% before consumer use. 4. The composition of claim 1, wherein the composition has less than about 20% total water. 5. The composition of claim 1, wherein the composition has less than about 10% total water. 6. The composition of claim 1, further comprising an inorganic thickening agent selected from the group consisting of clay, laponite, and mixtures thereof. 7. The composition of claim 1, further comprising an additional thickening agent selected from the group consisting of hydroxyethyl cellulose, water soluble salts of cellulose ethers, magnesium aluminum silicate, silica, and mixtures thereof. 8. The composition according to claim 1 wherein the thickening agent is selected from the group consisting of carboxyvinyl polymers, carrageenan, and mixtures thereof. 9. The composition of claim 7, wherein the fused silica abrasive has a water absorption of less than about 80 g/100 g. 10. The composition of claim 1, further comprising an additional thickening agent selected from the group consisting of gum karaya, xanthan gum, gum arabic, gum tragacanth, and mixtures thereof. 11. The composition of claim 8, further comprising an additional thickening agent selected from the group consisting of gum karaya, xanthan gum, gum arabic, gum tragacanth, and mixtures thereof. 12. The composition of claim 1, further comprising an additional thickening agent selected from the group consisting of sodium carboxymethylcellulose, cross-linked carboxymethylcellulose, cross-linked starch, and mixtures thereof. 13. The composition of claim 8, further comprising an additional thickening agent selected from the group consisting of sodium carboxymethylcellulose, cross-linked carboxymethylcellulose, cross-linked starch, and mixtures thereof. 14. An oral care composition having stable viscosity, comprising: a) from about 1% to about 20%, by weight of the composition, of a fused silica abrasive;b) from about 0.01% to about 10%, by weight of the composition, of a thickening agent selected from the group consisting of carboxyvinyl polymers, carrageenan, alkylated polyacrylates, alkylated cross linked polyacrylates, and mixtures thereof;c) from about 0.025% to about 9% of an anionic surfactant; andd) from about 0.1% to about 99% of a humectant; andwherein the composition is in the form of a toothpaste. 15. An oral care composition comprising: a) from about 1% to about 20%, by weight of the composition, of a fused silica abrasive having a particle size wherein D90 is less than about 50 microns;b) from about 0.01% to about 10%, by weight of the composition of a thickening agent selected from the group consisting of carboxyvinyl polymers, carrageenan, alkylated polyacrylates, alkylated cross linked polyacrylates, and mixtures thereof;c) from about 0.025% to about 9% of an anionic surfactant; andd) from about 0.1% to about 99% of a humectant;wherein at least 25% of the fused silica particles are spherical; andwherein the composition is in the form of a toothpaste.
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