A delivery system for an oral care substance using a...

A - Human Necessities – 61 – K

Patent

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Details

A61K 8/02 (2006.01) A61C 19/06 (2006.01) A61K 8/22 (2006.01) A61Q 11/00 (2006.01)

Patent

CA 2338331

A delivery system for an oral care substance such as a tooth whitening substance includes a strip of material having a yield point and thickness such that the strip of material substantially conforms to a shape of a tooth and its adjoining soft tissue via permanent deformation under a pressure less than about 250,000 Pascals when the delivery system is placed then against. The delivery system also includes an oral care substance applied to the strip of material such that when the delivery system is placed on a surface of the tooth and its adjoining soft tissue, the substance contacts the surface providing an active onto the surface. The substance also provides adhesive attachment between the strip of material and the surface to hold the delivery system in place for a sufficient time to allow the active to act upon the surface. The substance has an extrusion resistance sufficient to withstand a normal force applied to deform the strip of material so that the substance is not substantially extruded from between the strip of material and the surface during manual deformation of the strip of material.

L'invention concerne un système de distribution d'une substance pour soins oraux, telle qu'une substance de blanchissement des dents, comprenant une bande de matériau qui possède une limite apparente d'élasticité, et une épaisseur telles que ladite bande de matériau épouse sensiblement la forme d'une dent et du tissu mou adjacent, par l'intermédiaire d'une déformation permanente sous une pression inférieure à environ 250 000 pascals, lorsque ledit système de distribution est placé contre la dent et le tissu mou adjacent. Le système de distribution comprend également une substance de soins oraux appliquée sur la bande de matériau, de sorte que lorsque le système de distribution est placé sur la surface de la dent et du tissu mou adjacent, ladite substance vient en contact avec la surface, par fourniture d'un agent actif sur ladite surface. La substance comprend également une fixation adhésive placée entre la bande de matériau et la surface, afin de maintenir le système de distribution en place, pendant un temps suffisant pour que l'agent actif agisse sur ladite surface. La substance présente une résistance à l'extrusion suffisante pour supporter une force normale appliquée afin de déformer la bande de matériau, de sorte que la substance n'est pas sensiblement extrudée entre la bande de matériau et la surface pendant une déformation manuelle de ladite bande de matériau.

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