초록 ▼

Disclosed are compositions for bleaching teeth comprising at least two parts blended together before each application. The compositions offer extended shelf life and accelerated bleaching action while significantly reducing the possibility of user discomfort. In preferred embodiments, one part of th

Disclosed are compositions for bleaching teeth comprising at least two parts blended together before each application. The compositions offer extended shelf life and accelerated bleaching action while significantly reducing the possibility of user discomfort. In preferred embodiments, one part of the composition comprises peroxides of monovalent or bivalent metals such as sodium, potassium, magnesium, calcium, strontium, and zinc, and another part comprises an aqueous solution of one or more acids able to convert said metal peroxides into hydrogen peroxide, such reaction occurring under conditions resulting in the acceleration of the generation of radical oxygen and, consequently, the teeth whitening process. The inventive compositions allow for adequate water in the composition to avoid tissue desiccation and associated user discomfort without compromising the shelf life of the composition.

대표청구항

1. A teeth whitening composition comprising:Part 1 comprising 5-40% by weight of at least one metal peroxide; and Part 2 comprising at least one acid; wherein the Part 1 and Part 2 are mixed together less then about 30 minutes before application to form a material having a pH of about 4 to 11.

1. A teeth whitening composition comprising:Part 1 comprising 5-40% by weight of at least one metal peroxide; and Part 2 comprising at least one acid; wherein the Part 1 and Part 2 are mixed together less then about 30 minutes before application to form a material having a pH of about 4 to 11.