Dental composition and method
First Claim
1. A dental composition, comprising:
- a) polyalkenoic acid,b) from about 10 to about 90 percent by weight elutable glass filler,c) effectively partially neutralized acid functional polymerizable organic ester,d) water,e) polymerizable monomer and/or prepolymer, andf) polymerization catalyst system,said elutable glass filler (b) being adapted to elute cations which are reactive with said polyalkenoic acid (a), and said monomer and/or prepolymer (e) being non-reactive with cations from the elutable glass filler.
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Abstract
The invention provides dental composite compositions formed by mixing a curable liquid composition with a powder in preselected proportions. The composite compositions formed are useful as cement, liner, base, restorative, pit and fissure sealants, and/or core build-up material, etc. having improved adhesion to dentin. These composite compositions include polyalkenoic acid, filler which provides elutable cations which are reactive with the polyalkenoic acid and fluoride ion, water to provide for elution of cations reactive with polyalkenoic acid, polymerizable monomer and/or prepolymer composition, unsaturated organic acid having 1 or more polymerizable groups and a catalyst system for polymerization. Optionally the composites include inert reinforcing filler for strength, aesthetics, and radiopacity.
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Citations
48 Claims
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1. A dental composition, comprising:
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a) polyalkenoic acid, b) from about 10 to about 90 percent by weight elutable glass filler, c) effectively partially neutralized acid functional polymerizable organic ester, d) water, e) polymerizable monomer and/or prepolymer, and f) polymerization catalyst system, said elutable glass filler (b) being adapted to elute cations which are reactive with said polyalkenoic acid (a), and said monomer and/or prepolymer (e) being non-reactive with cations from the elutable glass filler. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A dental composition comprising
(a) a polymer of an α - -β
unsaturated carboxylic acid having a weight average molecular weight of 5,000 to 500,000,(b) a fluoroaluminosilicate glass powder having an average particle size of 0.02 to 50 μ
m and a specific gravity of 2.0 to 4.0 and capable of reacting with said polymer of an α
-β
unsaturated carboxylic acid having a weight average molecular weight of 5,000 to 500,000,(c) a polymerizable monomer and/or prepolymer, (d) a polymerization catalyst, (e) water, (f) ethylenically unsaturated organic acid, 20 to 40 equivalent weight percent salts of said ethylenically unsaturated organic acid, and (g) a reducing agent, said elutable glass filler (b) being adapted to elute cations which are reactive with said polyalkenoic acid (a), a substantial portion of said cations being strontium cations and said monomer and/or prepolymer (e) being non-reactive with cations from the elutable glass filler, said composition being adapted to form a substantially radiopaque polymeric product. - View Dependent Claims (30, 31, 32)
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33. A dental composition comprising:
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(a) 0.5 to 30 parts by weight of a polymer of an α
-β
unsaturated carboxylic acid having a weight average molecular weight of 5,000 to 500,000,(b) 10 to 90 parts by weight of a fluoroalumino-silicate glass powder having an average particle size of 0.02 to 50 μ
m and a specific gravity of 2.0 to 4.0 and capable of reacting with said polymer of an α
-β
unsaturated carboxylic acid having a weight average molecular weight of 5,000 to 500,000,(c) 1 to 60 parts by weight of a polymerizable monomer or prepolymer, (d) 0.5 to 30 parts by weight of water, (e) 1 to 60 parts by weight of ethylenically unsaturated organic acid and salts of said ethylenically unsaturated organic acid, said salts being 20 to 40 equivalent weight percent of said acid, (f) 0.01 to 5 parts by weight of a polymerization catalyst, and (g) 0.001 to 5 parts by weight of a reducing agent, said elutable glass filler (b) being adapted to elute cations which are reactive with said polyalkenoic acid (a), a substantial portion of said cations being strontium cations and said monomer and/or prepolymer (e) being non-reactive with cations from the elutable glass filler, said composition being adapted to form a substantially radiopaque polymeric product. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40)
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41. A two-paste dental composition comprising a first and a second paste, said first paste comprising a polyalkenoic acid, an acid functional polymerizable organic ester, and a non-reactive filler;
- said second paste, comprising a polymerizable monomer and/or prepolymer, cation elutable glass filler, and water, at least one of said first and second paste comprising a catalyst.
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42. A method of treating a tooth consisting of dental compositions, comprising mixing a powder and polymerizable liquid in preselected proportions to form at least two dental compositions selected from the group consisting of cement, liner, base, restorative, core build-up, and pit and fissure sealant, and applying them to at least one tooth whereupon they are caused to harden wherein said dental compositions comprise
a) polyalkenoic acid, b) elutable glass filler, c) an acid functional polymerizable organic ester, 20 to 40 equivalent weight percent salts of said acid functional polymerizable organic ester, d) water, e) polymerizable monomer and/or prepolymer, and f) polymerization catalyst system, said elutable glass filler (b) being adapted to elute strontium and fluoride cations which are reactive with said polyalkenoic acid (a) to form a substantially radiopaque polymeric product, and said monomer and/or prepolymer (e) being non-reactive with cations from the elutable glass filler.
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47. A dental composition comprising a powder and liquid wherein said powder comprises
(a) about 70-85 percent by weight strontium fluoroaluminosilicate glass, (b) about 0.7-0.9 percent by weight ethyl 4-dimethylaminobenzoate, and (c) about 15-30 percent by weight barium alumino borosilicate glass; -
and said liquid comprises (a) about 6-8 percent by weight polyacrylic acid, (b) about 6-8 percent by weight water, (c) about 26-32 percent by weight hydroxyethylmethacrylate, (d) about 26-32 percent by weight tetraethylene glycol dimethacrylate, (e) about 26-30 percent by weight dipentaerythritol pentacrylate phosphoric acid, dipentaerythritol pentacrylate phosphoric acid salts, said salts being 20 to 40 equivalent weight percent of said acid and (f) about 0.1-0.5 percent by weight camphorquinone, said elutable glass filler (b) being adapted to elute cations which are reactive with said polyalkenoic (a), a substantial portion of said cations being strontium and said monomer and/or prepolymer (e) being non-reactive with cations from the elutable glass filler, said composition being adapted to form a substantially radiopaque polymeric product.
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48. A polymerizable liquid dental composition, comprising:
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14.2 parts by weight polyacrylic acid; 28.5 parts by weight hydroxyethyl methacrylate; 0.1 parts by weight butylate hydroxytoluene; 28.5 parts by weight triethylene-glycol dimethacrylate; 28.5 parts by weight partially neutralized dipentaerythritol pentacrylate phosphoric acid ester and 0.2 parts by weight camphorquinone.
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Specification