Self-adhesive dental compositions and methods
View Patent ↗The present invention is directed to dental compositions that can be used as adhesives for bonding a dental material to a dental structure surface and/or as a dental restorative material. The dental composition is preferably applied to a dental structure surface under conditions effective to etch the dental structure surface.
1. A method of restoring a dental structure, the method comprising:
applying an aqueous diluent to an unetched dental structure surface to provide a wet, unetched dental structure surface;
applying a non-aqueous, self-adhesive composition to the wet, unetched dental structure surface; and
hardening the non-aqueous, self-adhesive composition under conditions effective to form a bond between the hardened composition and the dental structure;
wherein the aqueous diluent comprises an acid sensitive dye, an antibacterial agent, a water soluble monomer, a pH adjuster agent, a buffer, a stabilizer, a surfactant, a fluoride anion, a fluoride releasing agent, or combinations thereof.
2. The method of claim 1 wherein the aqueous composition comprises a water soluble monomer.
3. The method of claim 2 wherein the non-aqueous, self-adhesive composition comprises an ethylenically unsaturated compound with acid functionality, an ethylenically unsaturated compound without acid functionality, a filler, and an initiator system.
4. The method of claim 3 wherein the non-aqueous self-adhesive composition comprises at least 40% by weight filler.
5. The method of claim 3 wherein the acid functionality comprises carboxylic acid functionality, phosphoric acid functionality, phosphonic acid functionality, sulfonic acid functionality, or combinations thereof.
6. The method of claim 2 wherein the dental structure surface comprises enamel, dentin, or cementum.
7. The method of claim 6 wherein the bond strength is at least 7 MPa.
8. The method of claim 1 wherein the non-aqueous, self-adhesive composition comprises an ethylenically unsaturated compound with acid functionality, an ethylenically unsaturated compound without acid functionality, a filler, and an initiator system.
9. The method of claim 8 wherein the non-aqueous self-adhesive composition comprises at least 40% by weight filler.
10. The method of claim 8 wherein the acid functionality comprises carboxylic acid functionality, phosphoric acid functionality, phosphonic acid functionality, sulfonic acid functionality, or combinations thereof.
11. The method of claim 1 wherein the dental structure surface comprises enamel, dentin, or cementum.
12. The method of claim 11 wherein the bond strength is at least 7 MPa.