A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 33/40 (2006.01) A61C 5/00 (2006.01) A61C 19/06 (2006.01)
Patent
CA 2398639
Composition and methods which include a dental bleaching agent and potassium nitrate for enhanced whitening and reduced tooth sensitivity. The potassium nitrate both enhances the whiteness of teeth beyond the whitening effect of the dental agent and reduces or eliminates tooth sensitivity that would otherwise be caused by the bleaching agent. For prolonged treatment of teeth, lower quantities of potassium nitrate (e.g., 0.5 %) have actually been found to work better than larger quantities (e.g., 3 %). The dental compositions (40) may be applied directly to the person's teeth, or they may be loaded into a comfortable fitting, flexible, thin-walled dental tray (50) and placed over the person's teeth. In that case, the dental compositions (40) will include a tackifying agent, such as carboxypolymethylene, which assists the composition in retaining the dental tray (50) over the person's teeth as a result of the adhesive properties of the dental composition (40) rather than due to mechanical interlocking of the tray (50) over the person's teeth. The dental compositions may further include anticariogenic and antimicrobial agents.
L'invention concerne une composition et des méthodes qui comprennent un agent de blanchiment des dents et du nitrate de potassium afin de stimuler le blanchiment et de réduire la sensibilité des dents. Le nitrate de potassium renforce la blancheur des dents, une fois l'effet de l'agent de blanchiment passé, et diminue ou élimine la sensibilité des dents que provoque d'habitude l'agent de blanchiment. Pour un traitement prolongé des dents, on a découvert que des faibles quantités de nitrate de potassium (par exemple, 0,5 %), sont plus efficaces que des grandes quantités (par exemple, 3 %). Ces compositions dentaires (40) peuvent soit être appliquées directement sur les dents, soit être chargées dans un plateau dentaire, souple et adapté, à parois minces (50), lequel est placé contre les dents. Dans ce cas, les compositions dentaires (40) contiennent un agent gluant, tel que du carboxypolyméthylène, qui aide la composition à maintenir le plateau dentaire (50) sur les dents, sous l'effet des propriétés adhésives de la composition dentaire (40) au lieu du verrouillage mécanique du plateau (50) sur les dents. Ces compositions dentaires peuvent également comporter des agents anticarieux et antimicrobiens.
Fischer Dan E.
Jensen Steven D.
Cassan Maclean
Ultradent Products Inc.
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