Dental cement compositions and methods of use

1. A dental composition, wherein said composition comprises, on a surface of a dental substrate,

a bonding agent; and

a paste mixture, wherein the paste mixture was formed by mixing together a previously separated first part and a second part, and wherein the first part comprises at least one polymerizable monomer and at least one hydroperoxide, wherein the hydroperoxide is Cumene hydroperoxide (CHP); and the second part comprises at least one thiourea compound, wherein the thiourea is 1-(2-Pyridyl)-2-thiourea (PTU); and

wherein the bonding agent comprises 8% to 16% of 10-Methacryloyloxydecyl dihydrogen phosphate (10-MDP); wherein either the first part or second part of the paste mixture further comprises a copper (II) compound, and wherein bond strength of the dental bonding agent on a dental substrate is more than 15 MPa.

2. The dental composition of claim 1 , wherein the dental substrate is Zirconia.

3. The dental composition of claim 1 , wherein the bonding agent is a single bottle bonding agent.

4. A method of dental restoration, wherein said method comprises:

a first step of applying a dental bonding agent on a dental substrate, wherein the bonding agent comprises at least one phosphoric acid containing (meth)acrylic monomer, wherein said phosphoric acid containing (meth)acrylic monomer is 10-Methacryloyloxydecyl dihydrogen phosphate (10-MDP); and a second step of applying paste mixture from a device having a first part and a second part separate from each other, wherein said first part and second part form the paste mixture, and wherein the paste mixture from the device comprises at least one polymerizable monomer and at least one hydroperoxide in the first part, wherein the hydroperoxide is Cumene hydroperoxide (CHP); and at least one thiourea compound in the second part, wherein said thiourea is 1-(2-Pyridyl)-2-thiourea (PTU), wherein either the first part or second part of the paste mixture further comprises a copper (II) compound, and wherein bond strength of the dental bonding agent on a dental substrate is more than 15 MPa.

5. The method of claim 4 , wherein the bonding agent bonds effectively on a dental substrate.

6. The method of claim 4 , wherein the dental substrate is Zirconia.

7. The method of claim 4 , wherein the device is a dual-barrel syringe.

8. The dental composition of claim 1 , wherein the previously separated first part and a second part were separated in a dual-barrel syringe.