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US 2021/0007948 A1Published application
Methods And Compositions To Increase The Hardness And Resistance Of Enamel
AssigneeThe Procter & Gamble Company
InventorsArif Ali Baig, Aaron Reed Biesbrock, Samuel James St. John
Life of this patent
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Abstract
Teeth can be hardened and made more resistant to acid damage if treated with compositions that allow for the remineralization and demineralization of minerals found in teeth. Exchanging ions in hydroxyapatite for fluoride or other metal ions can result in teeth that are more resistant to chemical and physical insults.
Claims24
An aqueous oral care composition for demineralization and remineralization of at least one tooth comprising:
- a calcium source;
- a phosphate source;
- a fluoride source;
- at least 75%, by weight of the oral care composition, of water;
- wherein the composition is supersaturated relative to octacalcium phosphate, the composition has a −log([Ca2+]×[PO43−]) value of greater than about 2.75, and the composition has a pH of from about 5 to about 6.
2 more elements
A method of treatment of at least one tooth comprising:
- contacting at least one tooth with an aqueous oral care composition comprising:
- a calcium source;
- a phosphate source;
- a fluoride source;
- at least 75%, by weight of the oral care composition, of water;
- wherein the composition is supersaturated relative to octacalcium phosphate, the composition has a −log([Ca2+]×[PO43−]) value of greater than about 2.75, and the composition has a pH of from about 5 to about 6;
- and
- wherein the contact between at least one tooth and the oral care composition has a treatment time of 1 hour or less.
5 more elements
A delivery system for remineralization and demineralization of at least one tooth comprising:
- (a) an aqueous oral care composition comprising
- a calcium source;
- a phosphate source;
- a fluoride source;
- at least 75%, by weight of the oral care composition, of water;
- wherein the composition is supersaturated relative to octacalcium phosphate, the composition has a −log([Ca2+]×[PO43−]) value of greater than about 2.75, and the composition has a pH of from about 5 to about 6;
- and
- (b) a device selected from the group consisting of a tray, a strip, a gel, a foam, a varnish, a slow release device, a lozenge, a retainer, a mouth guard, and mixtures thereof.
5 more elements
Dependencies are inferred from the claim text.