Dental bleaching composition and method

Details Dental bleaching composition and method Dental bleaching composition and method

A - Human Necessities

61

C

A61C 5/00 (2006.01) A61K 6/00 (2006.01) A61C 19/06 (2006.01)

Patent

CA 2272286

A dental bleaching composition having enhanced effectiveness and reduced sensitivity, its method of use, and a kit containing the ingredients for making the composition. The dental bleaching composition is in the form of a gel with a pH of about 9 to 11 and comprises a bleaching agent such as hydrogen peroxide, an inert gelling material such as silica compounds, a pH modifier such as sodium hydroxide, and a discrete inert particulate material capable of absorbing the emitted laser light and retransmitting it as thermal energy. The dental bleaching composition is placed on the teeth to be bleached, exposed to laser energy, and removed. The process is then repeated until the desired amount of bleaching is achieved. Neutral sodium fluoride is then applied to the bleached teeth for at least 10 minutes to reduce or eliminate post-bleaching sensitivity.

Composition servant à blanchir les dents et présentant une amélioration de l'efficacité, ainsi qu'une diminution de la sensibilité, son procédé d'utilisation et trousse contenant les ingrédients servant à préparer cette composition. Cette dernière se présente sous la forme d'un gel dont le pH est entre 9 et 11, et contient un agent de blanchiment, tel que du peroxyde d'hydrogène, un matériau gélifiant inerte, tel que des composés de silice, un modificateur de pH, tel qu'hydroxyde de sodium, et un matériau inerte discret en particules capable d'absorber l'émission de lumière laser et de la retransmettre sous forme d'énergie thermique. On place cette composition de blanchiment sur les dents à blanchir, on l'expose à l'énergie laser et on la retire. On répète cette opération jusqu'à obtention du niveau souhaité de blanchiment. On applique ensuite du fluorure de sodium neutre aux dents blanchies pendant au moins dix minutes afin de limiter ou d'éliminer la sensibilité après blanchiment.

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