Patent ID: 8257719

Claim:
An oral care composition comprising: a hydrophilic, aliphatic, polyether-based thermoplastic polyurethane material, present in an amount of about 1% to about 25% by weight of the composition, a hydrophilic polymer present in an amount of about 40% to about 80% by weight of the composition; and at least one of a glycol polymer and glycerine present in an amount of about 10% to about 40% by weight of the composition, wherein the thermoplastic polyurethane material, the hydrophilic polymer and the at least one of a glycol polymer and glycerine are mixed together in a mixture to form a hydrogel film layer, the hydrogel included in a film layer having a thickness of about 1 mil to about 50 mils, wherein the hydrogel film layer including the thermoplastic polyurethane material, the hydrophilic polymer and the at least one of a glycol polymer and glycerine is joined with a substrate layer, wherein the substrate layer is adapted to wrap a plurality of teeth of a user so as to bring the hydrogel film layer into contact with the teeth, wherein the hydrophilic, aliphatic, polyether-based thermoplastic polyurethane material becomes tacky when hydrated to promote adhesion of the hydrogel film layer to the teeth when the hydrogel film layer contacts a moist surface of the teeth.