Hydrogel compositions for tooth whitening

Details Hydrogel compositions for tooth whitening Hydrogel compositions for tooth whitening

A - Human Necessities

61

K

A61K 8/22 (2006.01) A61K 6/00 (2006.01) A61K 8/73 (2006.01) A61K 8/81 (2006.01) A61K 8/86 (2006.01) A61Q 11/00 (2006.01)

Patent

CA 2515128

A composition is provided, wherein the composition comprises a water- swellable, water-insoluble polymer, a blend of a hydrophilic polymer and a complementary oligomer capable of hydrogen bonding to the hydrophilic polymer, and a whitening agent, preferably a peroxide. The composition finds utility as a tooth whitening composition and is applied to the teeth in need of whitening, and then removed when the degree of whitening has been achieved. In certain embodiments, the composition is translucent. Methods for preparing and using the compositions are also disclosed.

L'invention concerne une composition comprenant un polymère gonflable dans l'eau et insoluble dans l'eau, un mélange d'un polymère hydrophile et un oligomère complémentaire apte à lier l'hydrogène au polymère hydrophile, ainsi qu'un agent de blanchiment, de préférence un péroxyde. La composition trouve une application comme composition de blanchiment des dents et est appliquée sur les dents nécessitant un blanchiment, puis retirée lorsque le niveau de blanchiment a été atteint. Dans certains modes de réalisation, la composition est translucide. Font également l'objet de cette invention des procédés de préparation et d'utilisation des compositions.

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