US4830616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for bonding composite resin to dentin
Assignee: GC Corp
•
Filing: 1988-04-19
•
Granted: 1989-05-16
•
Expires: 2008-04-19
Abstract
Abstract A method for bonding a restorative composite resin to dentin which comprises: treating the surface of dentin with a dentin-treating liquid for, 1 to 90 seconds obtained by adding glutaraldehyde and ferric chloride to an aqueous solution of ethylenediaminetetraacetic acid regulated to a hydrogen ion concentration (pH) of 7.4; removing the treating liquid by water-rinsing to dry the thus treated surface of dentin; applying a primer comprising an ethylene related unsaturated monomer, a (meth)acrylic ester polymer and tri-n-butyl borane on the dried surface of dentin; and filling the restorative composite resin onto the applied surface of dentin.
Inventors
- 👤 Reiichi Okuda
- 👤 Masashi Komatsu
- 👤 Shin Asanuma
- 👤 Noriko Hiratsuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:13
CPC Classifications
A; A61; A61C; A61C5/00; A61K; A61K6/00; A61K6/40
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
94 words
A method for bonding a composite resin to dentin, which comprises: treating the surface of dentin with a dentin-treating liquid obtained by adding glutaraldehyde and ferric chloride to an aqueous solution of ethylenediaminetetraacetic acid (abbreviated to EDTA) regulated to a hydrogen ion concentration (pH) of 7.4, removing said treating liquid by water-rinsing to dry the thus treated surface of dentin, applying a primer comprising an ethylene related unsaturated monomer, a (meth)acrylic ester polymer and tri-n-butyl borane on the dried surface of dentin, and filling a restorative composite resin onto the applied surface of dentin.
Claim 2
Independent Claim
94 words
A method for bonding a composite resin to dentin, which comprises: treating the surface of dentin with a dentin-treating liquid obtained by adding glutaraldehyde and ferric chloride to an aqueous solution of ethylenediaminetetraacetic acid (abbreviated to EDTA) regulated to a hydrogen ion concentration (pH) of 7.4, removing said treating liquid by water-rinsing to dry the thus treated surface of dentin, applying a primer comprising an ethylene related unsaturated monomer, a (meth)acrylic ester polymer and tri-n-butyl borane on the dried surface of dentin, and filling a restorative composite resin onto the applied surface of dentin.
Claim 3
Dependent Claim
33 words
A bonding method as defined in claim 1, wherein the concentration of glutaraldehyde in said treating liquid is 0.01 to 20 parts by weight with respect to 100 parts by weight of water.
Claim 4
Dependent Claim
36 words
A bonding method as defined in claim 1 ro 2, wherein the concentration of ferric chloride in said treating liquid is 0.01 to 5.00 parts by weight with respect to 100 parts by weight of water.
Claim 5
Dependent Claim
33 words
A bonding method as defined in claim 1 or 2, wherein the concentration of EDTA in said treating liquid is 0.1 to 1.0 mol/l with respect to 100 parts by weight of water.
Claim 6
Dependent Claim
26 words
A bonding method as defined in claim 1 or 2, wherein said ethylene related unsaturated monomer of said primer is one or more (meth)acrylic ester monomers.
Claim 7
Dependent Claim
23 words
A bonding method as defined in claim 1 or 2, wherein said (meth)acrylic ester polymer of said primer is a methyl methacrylate polymer.
Claim 8
Dependent Claim
27 words
A bonding method as defined in claim 1 or 2, wherein said (meth)acrylic ester polymer of said primer is a copolymer of methyl methacrylate and ethyl methacrylate.
Claim 9
Dependent Claim
31 words
A bonding method as defined in claim 1 or 2, wherein said (meth)acrylic ester polymer of said primer is a methyl methacrylate polymer and copolymer of methyl methacrylate and ethyl methacrylate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-15 | 1992-11-14 | 1993-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-15 | 1996-11-14 | 1997-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-15 | 2000-11-14 | 2001-05-16 | $7700.00 | Window Closed / Lapsed |