Device and method for delivering an oral care agent

摘要

An oral care agent delivery device is provided which comprises a permanently deformable backing layer, an oral care layer, and a non-woven binding material with a first part that is substantially invested in the oral care layer and a second part that is substantially invested in the backing 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. 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.

主权项

1. A device for delivering an oral care agent to teeth, the device comprising:
a backing layer comprising a permanently deformable material; an oral care layer separately constructed from the backing layer, and in contact with and adjacent the backing layer, the separately constructed backing layer and oral care layer joined via an adhesive bond where the backing layer and oral care layer engage one another, the oral care layer comprising a pressure-sensitive adhesive comprising at least one hydrophilic polymer, at least one water-soluble plasticizer that is miscible with the hydrophilic polymer and at least one oral care agent absorbed in the pressure sensitive adhesive; and a binding material comprising a non-woven material, the binding material having a first part and a second part, the binding material aiding in the adhesive stability of the adhesive bond between the backing layer and the oral care layer, the binding material first part having a first surface; wherein the second part of the binding material is fully invested in the backing layer, and the first part of the binding material is saturated with at least a portion of the oral care layer, wherein the oral care layer penetrates below the first surface, of the binding material to form an oral care layer/binding material composition, wherein a portion of the oral care layer is not invested in the binding material, the portion located above the first surface and immediately adjacent the oral care layer/binding material composition; wherein the oral care layer has an adhesiveness when hydrated relative to the surface of the teeth of a subject that is sufficient to retain the device on the subject's teeth when placed thereon, and wherein the oral care layer has a tack of greater than about 50 g/cm2.