Device and method for delivering an oral care agent

A device for delivering an oral care agent, wherein the device is sized to fit over a plurality of teeth in an upper or lower dental arch in a subject, the device comprising:

• a permanently deformable backing layer;
• a non-woven binding material comprising a first part and a second part;
• and
• an 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 adhesive, wherein the first part of the binding material is substantially invested in at least a portion of the oral care layer, and the second part of the binding material is substantially invested in at least a portion of the backing layer, and
• a scrim embedded in the oral care layer, the scrim located in the oral care layer not occupied by the first part of the binding material substantially invested in the oral care layer, the scrim having a melting temperature above a melting temperature of the oral care layer,
• wherein the oral care layer has an adhesiveness when hydrated relative to the surface of the teeth of the subject that is sufficient to retain the device on the user's teeth when placed thereon.

A substantially non-flat device for delivering an oral care agent to a user's teeth, the device comprising:

• a permanently deformable backing material having a facial portion and a lingual portion separated by a long axis of the device, the facial portion positioned on the lips side of the teeth and the lingual portion on the tongue side of the teeth when the device is placed on the teeth by the user, and a convex side that is in contact with the teeth when the device is placed on the teeth by the user;
• a binding material having a first side and a second side, the first side of the binding material fully invested in the convex side of the facial portion of the backing material;
• and
• an oral care substance saturating the second side of the binding material, the oral care substance 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 an oral care agent absorbed in the adhesive;
• wherein the oral care substance 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;
• wherein the oral care substance is separately constructed from the permanently deformable backing material, and in contact with and adjacent the backing material, the separately constructed backing material and oral care substance joined via an adhesive bond where the backing material and oral care substance engage one another,
• wherein the binding material aids in the adhesive stability of the adhesive bond between the permanently deformable backing material and oral care substance, the binding material first side having a first surface;
• wherein the oral care substance penetrates below the first surface to form an oral care substance/binding material composition,
• wherein a portion of the oral care substance above the first surface is located immediately adjacent the oral care substance/binding material composition,
• wherein the oral care substance has a tack greater than about 50 g/cm2.