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US 11,400,031 B2Granted
Dental cement compositions and methods of use
AssigneeZest IP Holdings, LLC
InventorsXiangxu Chen, Matthew Marc Durban, Lingyan Julia Wang
Life of this patent
Estimating the term…
Abstract
Provided herein are dental compositions and methods for use in dental cementation applications.
Claims13
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, a copper (II) compound, and at least one hydroperoxide, wherein said hydroperoxide is a tertiary hydroperoxide;
- and the second part comprises at least one thiourea compound, wherein said thiourea is selected from the group consisting of 1-(2-Pyridyl)-2-thiourea (PTU), 1-Benzoyl-2-thiourea (BTU), 1-Acetyl-2-thiourea (ATU), 1-(2-Tetrahydrofurfuryl)-2-thiourea (TTU), or a combination thereof;
- and
- wherein the bonding agent comprises 8% to 16% of at least one phosphoric acid containing (meth)acrylic monomer), wherein said phosphoric acid containing (meth)acrylic monomer is selected from the group consisting of GPDM (glycerol phosphate di(meth)acrylate{(meth)acrylate=acrylate or methacrylate}), phenyl-P (phenyl methacryloxyethyl phosphate), PENTA-P (dipentaerithritol pentaacrylate phosphate), 10-MDP (methacryloyloxydecyl phosphate), HEMA-P (hydroxyethylmethacrylate phosphate), HEA-P (hydroxyethylacrylate phosphate), bis(HEMA)-P {bis(hydroxyethylmethacrylate) phosphate), bis(HEA)-P {bis(hydroxyethylacrylate) phosphate), bis((meth)acryloxypropyl)phosphate, and combinations thereof.
3 more elements
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 selected from the group consisting of GPDM (glycerol phosphate di(meth)acrylate{(meth)acrylate=acrylate or methacrylate }), phenyl-P (phenyl methacryloxyethyl phosphate), PENTA-P (dipentaerithritol pentaacrylate phosphate), 10-MDP (methacryloyloxydecyl phosphate), HEMA-P (hydroxyethylmethacrylate phosphate), HEA-P (hydroxyethylacrylate phosphate), bis(HEMA)-P {bis(hydroxyethylmethacrylate) phosphate), bis(HEA)-P {bis(hydroxyethylacrylate) phosphate), bis((meth)acryloxypropyl)phosphate, and combinations thereof;
- 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 a copper (II) compound, and at least one hydroperoxide in the first part, wherein said hydroperoxide is a tertiary hydroperoxide;
- and at least one thiourea compound in the second part, wherein said thiourea is selected from the group consisting of 1-(2-Pyridyl)-2-thiourea (PTU), 1-Benzoyl-2-thiourea (BTU), 1-Acetyl-2-thiourea (ATU), 1-(2-Tetrahydrofurfuryl)-2-thiourea (TTU), or a combination thereof, 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.
1 more element
Dependencies are inferred from the claim text.