Teeth whitening system
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorsJames Louis Gentile, Christine Watson Ryles, David Robert Williams, Alexander George Ziemkiewicz
Life of this patent
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Abstract
A kit and method for whitening teeth is provided which utilizes a U-shaped dental tray fittable over a person's teeth and a bleaching composition formed from a combination of first and second compositions which prior to use are stored separately from one another. The first composition includes a peroxide and the second composition includes an alkaline material. At least one of the first and second compositions includes an anionic surfactant; the latter permits the bleaching composition to better penetrate all surfaces surrounding the teeth.
Claims12
A kit for whitening teeth comprising:
- (i) a U-shaped dental tray fittable over a person's teeth;
- (ii) a bleaching composition formed from combining a first and second composition, the compositions being separately stored and comprising:
- (a) a first composition comprising from about 0.1 to about 30% of a peroxide in a cosmetically acceptable carrier;
- (b) a second composition comprising from about 0.1 to about 30% of an alkaline material in a cosmetically acceptable carrier, wherein at least one of the first and second compositions comprises an anionic surfactant;
- (iii) written instructions for placing the bleaching composition within the U-shaped tray and applying the tray over the person's teeth for a length of time sufficient to whiten teeth.
A method for whitening teeth comprising:
- (a) providing a U-shaped dental tray fittable over a person's teeth;
- (b) placing a bleaching composition within the U-shaped tray, the bleaching composition formed from combination of a first and second composition, the first and second compositions being separately stored and comprising:
- (a) a first composition comprising from about 0.1 to about 30% of a peroxide in a cosmetically acceptable carrier;
- (b) a second composition comprising from about 0.1 to about 30% of an alkaline material in a cosmetically acceptable carrier, wherein at least one of the first and second compositions includes an anionic surfactant;
- (c) applying the bleaching composition filled U-shaped tray over the person's teeth for a length of time sufficient to whiten the teeth.
Dependencies are inferred from the claim text.