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US4746686A Expired / Lapsed US ⏱️ 0.0 years remaining

Visible light activated cavity liner

Assignee: Manufacturers Hanover Trust Co
•
Filing: 1987-04-17
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Granted: 1988-05-24
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Expires: 2007-04-17
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Abstract

Abstract A visible light activated cavity liner which provides an available source of leachable calcium and fluoride to the base of a tooth cavity, said composition comprising a photopolymerizable matrix material, a photo initiator, a reducing agent, a synthetic hydroxyapatite filler and a powdered glass ionomer filler.

Inventors

  • 👤 Duncan E. Waller

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 12:17
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/70; A61K6/71; A61K6/74; A61K6/75; A61K6/15; A61K6/17; A61K6/77; A61K6/78; A61K6/80; A61K6/849; A61K6/876; A61K6/884; A61K6/887; A61K6/889; Y; Y10; Y10S; Y10S522/00; Y10S522/908

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 91 words
A visible light activated cavity liner in the form of a low viscosity paste which provides an available source of leachable calcium and fluoride to the base of a tooth cavity, said composition comprising a photopolymerizable matrix material, a photoinitiator, a reducing agent, a synthetic hydroxyapatite filler and a powdered basic fluoro-alumino silicate glass filler, with said paste prior to photopolymerization, being capable of wetting and chemically bonding to tooth structure, and after photopolymerization being capable of bonding to composite restorative material used to complete the filling of a dental cavity.
Claim 2
Dependent Claim 91 words
A visible light activated cavity liner in the form of a low viscosity paste which provides an available source of leachable calcium and fluoride to the base of a tooth cavity, said composition comprising a photopolymerizable matrix material, a photoinitiator, a reducing agent, a synthetic hydroxyapatite filler and a powdered basic fluoro-alumino silicate glass filler, with said paste prior to photopolymerization, being capable of wetting and chemically bonding to tooth structure, and after photopolymerization being capable of bonding to composite restorative material used to complete the filling of a dental cavity.
Claim 3
Dependent Claim 95 words
A visible light activated cavity liner in the form of a paste which comprises in weight percent: ______________________________________ Ethoxylated Bisphenol A Dimethacrylate 15-60 Barium Sulfate 10-50 Basic Fluoro-Alumino Silicate Glass Powder 5-30 Synthetic Hydroxyapatite 5-30 Hydroxyethyl Methacrylate 2-20 Yellow Pigment Blend 0.1-5.0 Gray Pigment Blend 0.1-5.0 Methacryloxypropyltrimethoxy Silane 0.1-5.0 Tertiary Amine Reducing Agent 0.05-2.0 α Diketone Photosensitizer 0.01-2.0 ______________________________________ with said paste, prior to photopolymerization being capable of wetting and chemically bonding to tooth structure, and after photopolymerization being capable of bonding to composite restorative material used to complete the filling of a dental cavity.
Claim 4
Dependent Claim 95 words
A visible light activated cavity liner in the form of a paste which comprises in weight percent: ______________________________________ Ethoxylated Bisphenol A Dimethacrylate 15-60 Barium Sulfate 10-50 Basic Fluoro-Alumino Silicate Glass Powder 5-30 Synthetic Hydroxyapatite 5-30 Hydroxyethyl Methacrylate 2-20 Yellow Pigment Blend 0.1-5.0 Gray Pigment Blend 0.1-5.0 Methacryloxypropyltrimethoxy Silane 0.1-5.0 Tertiary Amine Reducing Agent 0.05-2.0 α Diketone Photosensitizer 0.01-2.0 ______________________________________ with said paste, prior to photopolymerization being capable of wetting and chemically bonding to tooth structure, and after photopolymerization being capable of bonding to composite restorative material used to complete the filling of a dental cavity.
Claim 5
Dependent Claim 95 words
A visible light activated cavity liner in the form of a paste which comprises in weight percent: ______________________________________ Ethoxylated Bisphenol A Dimethacrylate 25-40 Barium Sulfate 20-25 Basic Fluoro-Alumino Silicate Glass Powder 10-20 Synthetic Hydroxyapatite 10-20 Hydroxyethyl Methacrylate 4-10 Yellow Pigment Blend 1-3 Gray Pigment Blend 1-3 Methacryloxpropyltrimethoxy Silane 0.5-2.0 Tertiary Amine Reducing Agent 0.1-1.0 α Diketone Photosensitizer 0.05-1.0 ______________________________________ with said paste, prior to photopolymerization being capable of wetting and chemically bonding to tooth structure, and after photopolymerization being capable of bonding to composite restorative material used to complete the filling of a dental cavity.
Claim 6
Dependent Claim 95 words
A visible light activated cavity liner in the form of a paste which comprises in weight percent: ______________________________________ Ethoxylated Bisphenol A Dimethacrylate 25-40 Barium Sulfate 20-25 Basic Fluoro-Alumino Silicate Glass Powder 10-20 Synthetic Hydroxyapatite 10-20 Hydroxyethyl Methacrylate 4-10 Yellow Pigment Blend 1-3 Gray Pigment Blend 1-3 Methacryloxpropyltrimethoxy Silane 0.5-2.0 Tertiary Amine Reducing Agent 0.1-1.0 α Diketone Photosensitizer 0.05-1.0 ______________________________________ with said paste, prior to photopolymerization being capable of wetting and chemically bonding to tooth structure, and after photopolymerization being capable of bonding to composite restorative material used to complete the filling of a dental cavity.
Claim 7
Dependent Claim 89 words
A visible light activated cavity liner in the form of a paste comprises in weight percent: ______________________________________ Ethoxylated Bisphenol A Dimethacrylate 17.0 Bisphenol A Dimethacrylate 17.0 Hydroxy Propyl Methacrylate 7.5 Barium Aluminum Borosilicate 24.0 Synthetic Hydroxyapatite 16.0 Basic Fluoro-Alumino Silicate Glass Powder 16.0 Diethylaminoethylmethacrylate 0.5 Benzil 0.5 Methacryloxypropyltrimethoxy Silane 1.0 Pigments 0.5 ______________________________________ with said paste prior to photopolymerization, being capable of wetting and chemically bonding to tooth structure, and after photopolymerization being capable of bonding to composite restorative material used to complete the filling of a dental cavity.
Claim 8
Dependent Claim 89 words
A visible light activated cavity liner in the form of a paste comprises in weight percent: ______________________________________ Ethoxylated Bisphenol A Dimethacrylate 17.0 Bisphenol A Dimethacrylate 17.0 Hydroxy Propyl Methacrylate 7.5 Barium Aluminum Borosilicate 24.0 Synthetic Hydroxyapatite 16.0 Basic Fluoro-Alumino Silicate Glass Powder 16.0 Diethylaminoethylmethacrylate 0.5 Benzil 0.5 Methacryloxypropyltrimethoxy Silane 1.0 Pigments 0.5 ______________________________________ with said paste prior to photopolymerization, being capable of wetting and chemically bonding to tooth structure, and after photopolymerization being capable of bonding to composite restorative material used to complete the filling of a dental cavity.
Claim 9
Dependent Claim 92 words
A visible light activated cavity liner in the form of a paste which comprises in weight percent: ______________________________________ Ethylenically Unsturated Resin 15-60 Radiopaquing Agent 10-50 Basic Fluoro-Alumino Silicate Glass Powder 5-30 Synthetic Hydroxyapatite 5-30 Hydrophilic Ethylenically Unsaturated Diluent 2-20 Pigment Blends 0.2-10.0 Polymerizable Adhesion Promoter 0.1-2.0 Synergistic Amine Reducing Agent 0.05-2.0 Visible Light Photosensitizer 0.01-2.0 ______________________________________ with said paste prior to photopolymerization being capable of wetting and chemically bonding to tooth structure, and after photopolymerization being capable of bonding to composite restorative materials used to complete the filling of a dental cavity.
Claim 10
Dependent Claim 92 words
A visible light activated cavity liner in the form of a paste which comprises in weight percent: ______________________________________ Ethylenically Unsturated Resin 15-60 Radiopaquing Agent 10-50 Basic Fluoro-Alumino Silicate Glass Powder 5-30 Synthetic Hydroxyapatite 5-30 Hydrophilic Ethylenically Unsaturated Diluent 2-20 Pigment Blends 0.2-10.0 Polymerizable Adhesion Promoter 0.1-2.0 Synergistic Amine Reducing Agent 0.05-2.0 Visible Light Photosensitizer 0.01-2.0 ______________________________________ with said paste prior to photopolymerization being capable of wetting and chemically bonding to tooth structure, and after photopolymerization being capable of bonding to composite restorative materials used to complete the filling of a dental cavity.

References Cited (Backward Citations)

US4224072A Cited
US4437836A Cited
US4674980A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-05-24 1991-11-23 1992-05-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-05-24 1995-11-23 1996-05-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-05-24 1999-11-23 2000-05-24 $7700.00 Window Closed / Lapsed

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