Device and method for delivering an oral care agent

A - Human Necessities – 61 – C

Patent

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Details

A61C 19/06 (2006.01) A61C 19/08 (2006.01) A61K 8/22 (2006.01) A61K 9/00 (2006.01) A61K 31/00 (2006.01) A61Q 11/00 (2006.01)

Patent

CA 2490414

An oral care agent delivery device is provided which comprises a permanently deformable backing layer, an anchor layer overtop the backing layer, and an oral care layer overtop the anchor layer. The device is sized to fit over a plurality of teeth in an upper or lower dental arch of a subject. The oral care layer comprises at least one oral care agent and at least one hydrophilic polymer. The oral care layer is in contact with the anchor layer and forms an adhesive bond with the anchor layer; however, the oral care layer is minimally invested in the anchoring layer. When hydrated, the oral care layer has an adhesiveness relative to the surface of a user's teeth that is sufficient to retain the device on the user's teeth when placed thereon. The device can also have an oral care agent which is activated on hydration of the oral care layer, or an oral care layer which releases the oral care agent over time.

L'invention concerne un dispositif d'administration d'un agent de soin buccal, comprenant une couche support apte ~ une d~formation permanente, une couche d'ancrage pr~vue au-dessus de la couche support, et une couche de soin buccal pr~vue au-dessus de la couche d'ancrage. Le dispositif est dimensionn~ pour s'adapter sur une pluralit~ de dents dans l'arcade dentaire sup~rieure ou inf~rieure d'un patient. La couche de soin buccal comprend au moins un agent de soin buccal et au moins un polym­re hydrophile. La couche de soin buccal est en contact avec la couche d'ancrage et forme avec celle-ci une liaison adh~sive ; toutefois, la couche de soin buccal est investie au minimum dans la couche d'ancrage. Lorsqu'elle est hydrat~e, la couche de soin buccal pr~sente une adh~sivit~ par rapport ~ la surface des dents d'un patient qui est suffisante pour maintenir le dispositif lorsque ce dernier est mis en place sur les dents du patient. Le dispositif peut ~galement pr~senter un agent de soin buccal, activ~ par hydratation de la couche de soin buccal, ou encore, une couche de soin buccal lib~rant l'agent de soin buccal au bout d'un certain temps.

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