Self etch all purpose dental cement composition and method of use thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61K-006/083
A61C-005/00
출원번호
US-0048479
(2011-03-15)
등록번호
US-8664294
(2014-03-04)
발명자
/ 주소
Jia, Weitao
Jin, Shuhua
출원인 / 주소
Pentron Clinical Technologies, LLC
대리인 / 주소
Wood, Herron & Evans, LLP
인용정보
피인용 횟수 :
0인용 특허 :
46
초록▼
A self etching, dental cement composition is provided having the advantage of not requiring a separate etching and bonding step. The cement composition comprises a polymerizable (meth)acrylate trimellitic acid/anhydride, a phosphoric acid (meth)acrylate, a hydroxyalkyl(meth)acrylate, copolymerizable
A self etching, dental cement composition is provided having the advantage of not requiring a separate etching and bonding step. The cement composition comprises a polymerizable (meth)acrylate trimellitic acid/anhydride, a phosphoric acid (meth)acrylate, a hydroxyalkyl(meth)acrylate, copolymerizable multi-functional (meth)acrylate monomers, a diluent, fillers, and a curing system. These cement compositions are prepared as a two-paste system that is combined prior to use.
대표청구항▼
1. A self-etching and bonding dental resin cement composition, comprising: a two-paste system that is combined prior to use, wherein a first catalyst paste comprises a first polymerizable resin composition, a first filler, and a peroxide free radical polymerization initiator, and wherein a second ba
1. A self-etching and bonding dental resin cement composition, comprising: a two-paste system that is combined prior to use, wherein a first catalyst paste comprises a first polymerizable resin composition, a first filler, and a peroxide free radical polymerization initiator, and wherein a second base paste comprises a second polymerizable resin, a second filler, a free radical polymerization accelerator, and optionally a photoinitiator,wherein the first polymerizable resin composition comprises, based on 100 weight percent: about 5 to about 50 weight percent of a polymerizable (meth)acrylate trimellitic acid/anhydride selected from 4-(meth)acryloyloxymethyltrimellitic acid; 4-(meth)acryloyloxymethyltrimellitic anhydride; 4-(meth)acryloyloxyethyltrimellitic acid; 4-(meth)acryloyloxyethyltrimellitic anhydride; 4-(meth)acryloyloxypropyltrimellitic acid; 4-(meth)acryloyloxypropyltrimellitic anhydride; or a combination thereof;about 5 to about 20 weight percent of a phosphoric acid (meth)acrylate;about 5 to about 25 weight percent of a hydroxyalkyl(meth)acrylate; andthe balance being one or more first copolymerizable multi-functional (meth)acrylates, andwherein the second polymerizable resin composition comprises, based on 100 weight percent: about 50 to about 95 weight percent of one or more second copolymerizable multi-functional (meth)acrylates; andabout 5 to about 50 weight percent diluent. 2. The composition of claim 1, wherein the first polymerizable resin composition comprises about 20 to about 40 weight percent of the polymerizable (meth)acrylate trimellitic acid/anhydride. 3. The composition of claim 2, wherein the polymerizable (meth)acrylate trimellitic acid/anhydride is 4-methacryloyloxyethyltrimellitic anhydride. 4. The composition of claim 1, wherein the first polymerizable resin composition comprises about 10 to about 15 weight percent of the phosphoric acid (meth)acrylate. 5. The composition of claim 4, wherein the phosphoric acid (meth)acrylate is glyceryl dimethacrylate phosphate. 6. The composition of claim 1, wherein the first polymerizable resin composition comprises about 10 to about 20 weight percent of the hydroxyalkyl(meth)acrylate. 7. The composition of claim 1, wherein the hydroxyalkyl(meth)acrylate is 2-hydroxyethyl methacrylate. 8. The composition of claim 1, wherein the one or more first and second copolymerizable multi-functional (meth)acrylates are independently selected from a urethane (meth)acrylate, a urethane di(meth)acrylate; a polyurethane(meth)acrylate; a diurethane dimethacrylate; a polycarbonate di(meth)acrylate; an ethoxylated bisphenol A di(meth)acrylate; an ethoxylated trimethylolpropane tri(meth)acrylate; a diglycidyl (meth)acrylate adduct of Bisphenol A; or a combination thereof. 9. The composition of claim 1, wherein the one or more first copolymerizable multi-functional (meth)acrylates comprise tri(ethylene glycol) dimethacrylate and/or urethane dimethacrylate. 10. The composition of claim 1, wherein the one or more second copolymerizable multi-functional (meth)acrylates comprise urethane dimethacrylate, and the diluent comprises tri(ethylene glycol)dimethacrylate. 11. The composition of claim 1, wherein the first catalyst paste further comprises a stabilizer; and wherein the second base paste further comprises the photoinitiator and an ultraviolet absorber. 12. The composition of claim 1, wherein the peroxide free radical polymerization initiator is benzoyl peroxide. 13. The composition of claim 12, wherein the second base paste comprises the photoinitiator, and the free radical polymerization accelerator comprises a plurality of free radical polymerization accelerators including at least two aromatic tertiary amines and at least one aromatic sulfinic acid salt. 14. The composition of claim 1, wherein the self-etching and bonding dental resin cement composition is substantially free of added water. 15. A self-etching and bonding dental resin cement composition, comprising: a dual-cure two-paste system that is combined prior to use, wherein a first catalyst paste comprises a first polymerizable resin composition, a first filler, and a benzoyl peroxide free radical polymerization initiator, and wherein a second base paste comprises a second polymerizable resin, a second filler, a free radical polymerization accelerator, and a photoinitiator,wherein the first polymerizable resin composition comprises, based on 100 weight percent: about 5 to about 50 weight percent of a polymerizable (meth)acrylate trimellitic acid/anhydride selected from 4-(meth)acryloyloxymethyltrimellitic acid; 4-(meth)acryloyloxymethyltrimellitic anhydride; 4-(meth)acryloyloxyethyltrimellitic acid; 4-(meth)acryloyloxyethyltrimellitic anhydride; 4-(meth)acryloyloxypropyltrimellitic acid; 4-(meth)acryloyloxypropyltrimellitic anhydride; or a combination thereof;about 5 to about 20 weight percent of glyceryldimethacrylate phosphate;about 5 to about 25 weight percent of a hydroxyalkyl(meth)acrylate selected from 2-hydroxyethyl(meth)acrylate, 2-hydroxypropyl(meth)acrylate, or 4-hydroxybutyl(meth)acrylate; andthe balance being one or more first copolymerizable multi-functional (meth)acrylates selected from tri(ethylene glycol) dimethacrylate and/or urethane dimethacrylate, andwherein the second polymerizable resin composition comprises, based on 100 weight percent: about 50 to about 95 weight percent of one or more second copolymerizable multi-functional (meth)acrylates; andabout 5 to about 50 weight percent diluent. 16. The composition of claim 15, wherein the one or more second copolymerizable multi-functional (meth)acrylates comprise urethane dimethacrylate, and the diluent comprises tri(ethylene glycol) dimethacrylate. 17. The composition of claim 15, wherein the first catalyst paste further comprises a stabilizer; and wherein the second base paste further comprises an ultraviolet absorber. 18. The composition of claim 15, wherein the self-etching and bonding dental resin cement composition is substantially free of added water. 19. A method of restoring a tooth, comprising: mixing the first catalyst paste and the second base paste of claim 1 to form a self-etching and bonding dental resin cement composition;applying the self-etching and bonding dental resin cement composition to a tooth surface or a surface of a dental restoration being bonded without the use of any additional etching or bonding step prior to the applying;applying a dental restorative material; andcuring the cement composition. 20. A method of restoring a tooth, comprising: mixing the first catalyst paste and the second base paste of claim 15 to form a self-etching and bonding dental resin cement composition;applying the self-etching and bonding dental resin cement composition to a tooth surface or a surface of a dental restoration being bonded without the use of any additional etching or bonding step prior to the applying;applying a dental restorative material; andcuring the cement composition with actinic light.
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