Method of restoring a tooth
DCFirst Claim
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1. A method of restoring a tooth, comprising:
- (a) dispensing a curable composition from an applicator having a needle with a lumen into a hollow on the tooth to achieve a desired shape, the composition comprising;
(i) curable liquid resin portion having a polymerizable binder resin; and
(ii) inorganic filler portion comprising about 30% to about 70% by weight of the inorganic filler portion of fumed silica, and wherein the weight ratio of the curable liquid resin portion to the inorganic filler portion is less than 7;
3; and
(b) curing the curable composition.
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Abstract
A method of restoring a tooth. The method comprises the steps of dispensing a curable composition from an applicator and curing the curable composition. The applicator has a needle with a lumen. The composition is injected into a hollow on the tooth to achieve a desired shape. The composition includes curable liquid resin portion and an inorganic filler portion. The curable liquid resin portion has a polymerizable binder resin.
39 Citations
24 Claims
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1. A method of restoring a tooth, comprising:
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(a) dispensing a curable composition from an applicator having a needle with a lumen into a hollow on the tooth to achieve a desired shape, the composition comprising; (i) curable liquid resin portion having a polymerizable binder resin; and (ii) inorganic filler portion comprising about 30% to about 70% by weight of the inorganic filler portion of fumed silica, and wherein the weight ratio of the curable liquid resin portion to the inorganic filler portion is less than 7;
3; and(b) curing the curable composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of restoring a tooth having a decayed portion, comprising:
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(a) removing the decayed portion and adjacent healthy portion of the tooth to form a hollow on the tooth wherein the volume of the healthy portion removed is 0.5 to 3 times the size of the decayed portion; (b) coating the surface in the hollow with a curable bond and curing the bond; (c) dispensing a curable composition from an applicator having a needle with a lumen into the hollow to achieve a desired shape, the composition comprising; (i) curable liquid resin portion having polymerizable binder resin and polymerizable diluent monomer less viscous then the polymerizable binder resin; and (ii) inorganic filler portion comprising about 30% to about 70% by weight of the inorganic filler portion of fumed silica, and wherein the weight ratio of the curable liquid resin portion to the inorganic filler portion is less than 7;
3;(d) curing the curable composition; and (e) repeating steps (c) and (d) until a cured structure of desired shape and smoothness is obtained. - View Dependent Claims (19, 20, 21)
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22. A method of restoring a tooth, comprising:
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(a) dispensing a curable composition from an applicator having a needle with a lumen in the form of one of a layer and a drop into a hollow on the tooth, the composition comprising; (i) curable liquid resin portion having polymerizable binder resin; and (ii) inorganic filler portion comprising about 30% to about 70% by weight of the inorganic filler portion of fumed silica, and wherein the weight ratio of the curable liquid resin portion to the inorganic filler portion is less than 7;
3;(b) curing the curable composition, wherein the curable composition shrinks during curing; (c) dispensing the curable composition from the needle on the cured composition to further fill the hollow and to compensate for the shrinkage to achieve a desired shape; (d) curing the curable composition; and (e) repeating steps (c) and (d) until a cured structure of desired shape is formed.
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23. A method of restoring a tooth having a decayed portion;
- comprising;
(a) removing the decayed portion and adjacent healthy portion of the tooth to form a hollow on the tooth wherein the volume of the healthy portion removed is 0.5 to 3 times the size of the decayed portion; (b) coating the surface in the hollow with a curable bond and curing the bond; (c) dispensing a curable, thixotropic composition from a syringe with a needle having a lumen into the hollow to result in a desired shape of the curable composition, the composition comprising; (i) curable liquid resin portion having polymerizable binder resin including 2,2-bis [4(2-hydroxy-3-methacryloxypropoxy)phenyl]propane and a diluent monomer selected from the group consisting of 2-hydroxyethylmethacrylate and triethylene glycol dimethacrylate, the weight ratio of polymerizable binder resin to polymerizable diluent monomer is from 3;
1 to 1;
2; and(ii) inorganic filler portion comprising about 30% to about 70% by weight of the inorganic filler fumed silica;
wherein the viscosity of the curable liquid resin portion at 25°
C. is 1000 to 6000 cps and the weight ratio of curable liquid resin portion to inorganic filler portion is 2;
5 to 3;
5;(d) curing the curable composition with visible light, wherein the curable composition shrinks during curing; (e) dispensing the curable composition from the needle on the cured composition to further fill the hollow and to compensate for the shrinkage to achieve a desired shape; (f) curing the curable composition; and (g) repeating steps (e) and (f) until a cured structure of desired shape is formed; wherein the cured structure has desired smoothness without polishing.
- comprising;
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24. A curable, thixotropic composition injectable through a hypodermic needle for filling a hollow in the restoration of a tooth, comprising:
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(a) a curable liquid resin portion having a polymerizable binder resin; and (b) an inorganic filler portion comprising about 30% to about 70% by weight of the inorganic filler of fumed silica, and wherein the weight ratio of the curable liquid resin portion to the inorganic filler portion is less than 7;
3.
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Specification