US5338773A
Expired / Lapsed
US
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Dental composition and method
Assignee: Dentsply Research and Development Corp
•
Filing: 1993-04-19
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Granted: 1994-08-16
•
Expires: 2013-04-19
Abstract
Abstract The invention provides dental cement compositions and methods of using them for binding hard tooth material, metal and ceramic. The cement compositions include polymerizable acid reactive ethylenically unsaturated monomers, and a source of cations reactive therewith, to further crosslink the resulting polymer. The cements have superior adhesion to tooth without separately acid etching dentin or enamel. Compositions of are useful as dental luting cements, liners, bases and restoratives.
Inventors
- 👤 Kewang Lu
- 👤 Chin-Teh Huang
- 👤 Paul Hammesfahr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:02
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/76; C07C69/84; C07C69/92; A; A61; A61C; A61C5/00; A61C5/60; A61C5/66; A61K; A61K6/00; A61K6/20; A61K6/30; A61K6/80; A61K6/884; A61K6/887; A61K6/889
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
157 words
A dental cement composition, comprising: a cation source and a polymerizable monomer compound of the general formula ##STR10## wherein X, is O, S, ##STR11## R 1 and R 2 each independently is a polymerizable unsaturated moiety having from 2 to 13 carbon atoms, R 3 , R 4 , R 5 , and R 6 each independently is hydrogen, halogen, alkyl of from 1 to 10 carbon atoms or halogenated alkyl of from 1 to 10 carbon atoms, R 9 , R 10 , R 11 , R 12 , R 13 and R 14 each independently is hydrogen, alkyl having from 1 to 10 carbon atoms or aryl having from 6 to 10 carbon atoms. Z 1 and Z 2 each independently is a moiety including an acid group or a reactive acid derivative, a, m and n each independently is 0 or 1, b and p each independently is an integer from 1 to 10.
Claim 2
Dependent Claim
157 words
A dental cement composition, comprising: a cation source and a polymerizable monomer compound of the general formula ##STR10## wherein X, is O, S, ##STR11## R 1 and R 2 each independently is a polymerizable unsaturated moiety having from 2 to 13 carbon atoms, R 3 , R 4 , R 5 , and R 6 each independently is hydrogen, halogen, alkyl of from 1 to 10 carbon atoms or halogenated alkyl of from 1 to 10 carbon atoms, R 9 , R 10 , R 11 , R 12 , R 13 and R 14 each independently is hydrogen, alkyl having from 1 to 10 carbon atoms or aryl having from 6 to 10 carbon atoms. Z 1 and Z 2 each independently is a moiety including an acid group or a reactive acid derivative, a, m and n each independently is 0 or 1, b and p each independently is an integer from 1 to 10.
Claim 3
Dependent Claim
16 words
The composition of claim 1 wherein said cation source comprises ions of calcium, aluminum or strontium.
Claim 4
Dependent Claim
10 words
The composition of claim 1 further comprising a diluent comonomer.
Claim 5
Dependent Claim
12 words
The composition of claim 2 wherein said cation source further comprises glass-particles.
Claim 6
Dependent Claim
11 words
The composition of claim 1 wherein n and m are zero.
Claim 7
Dependent Claim
24 words
The composition of claim 5 wherein X is oxygen or ##STR12## wherein R 3 and R 4 each independently is a fluorinated methyl moiety.
Claim 8
Dependent Claim
25 words
The composition of claim 6 wherein Z 1 and Z 2 are --COOM wherein M is hydrogen, lithium, ammonium, sodium, potassium, calcium, aluminum or strontium.
Claim 9
Dependent Claim
24 words
The composition of claim 1 wherein said cation source comprises a glass filler from which reactive ions of calcium, strontium or alumina are eluted.
Claim 10
Dependent Claim
12 words
The composition of claim 1 further comprising a source of fluoride ion.
Claim 11
Independent Claim
170 words
A method of adhering a dental cement to tooth material, comprising: providing a dental cement, said cement comprising a compound of the general formula ##STR13## wherein X, is O, S, ##STR14## R 1 and R 2 each independently is a polymerizable unsaturated moiety having from 2 to 13 carbon atoms; R 3 , R 4 , R 5 , and R 6 each independently is hydrogen, halogen, alkyl of from 1 to 10 carbon atoms or halogenated alkyl of from 1 to 10 carbon atoms; R 9 , R 10 , R 11 , R 12 , R 13 and R 14 each independently is hydrogen, alkyl having from 1 to 10 carbon atoms or aryl having from 6 to 10 carbon atoms. Z 1 and Z 2 each independently is a moiety including an acid group or a reactive acid derivative; a, m and n each independently is 0 or 1; b and p each independently is an integer from 1 to 10; applying said cement to tooth material.
Claim 12
Independent Claim
170 words
A method of adhering a dental cement to tooth material, comprising: providing a dental cement, said cement comprising a compound of the general formula ##STR13## wherein X, is O, S, ##STR14## R 1 and R 2 each independently is a polymerizable unsaturated moiety having from 2 to 13 carbon atoms; R 3 , R 4 , R 5 , and R 6 each independently is hydrogen, halogen, alkyl of from 1 to 10 carbon atoms or halogenated alkyl of from 1 to 10 carbon atoms; R 9 , R 10 , R 11 , R 12 , R 13 and R 14 each independently is hydrogen, alkyl having from 1 to 10 carbon atoms or aryl having from 6 to 10 carbon atoms. Z 1 and Z 2 each independently is a moiety including an acid group or a reactive acid derivative; a, m and n each independently is 0 or 1; b and p each independently is an integer from 1 to 10; applying said cement to tooth material.
Claim 13
Dependent Claim
28 words
The method of claim 10 wherein said applying is without prior treatment of said tooth material, except cleaning to increase adhesion of said cement to said tooth material.
Claim 14
Dependent Claim
16 words
The method of claim 10 wherein said cation source comprises ions of calcium, aluminum or strontium.
Claim 15
Dependent Claim
10 words
The method of claim 10 further comprising a diluent comonomer.
Claim 16
Dependent Claim
13 words
The method of claim 12 wherein said cation source further comprises glass particles.
Claim 17
Dependent Claim
11 words
The method of claim 10 wherein n and m are zero.
Claim 18
Dependent Claim
20 words
The method of claim 15 wherein X is oxygen ##STR15## wherein R 3 and R 4 are fluorinated methyl moieties.
Claim 19
Dependent Claim
26 words
The method of claim 16 wherein Z 1 and Z 2 are --COOM wherein M is hydrogen, ammonium, an alkali metal, alkaline-earth metal, aluminum or strontium.
Claim 20
Dependent Claim
17 words
The method of claim 16 wherein M is hydrogen, lithium, ammonium, sodium, potassium, calcium, aluminum or strontium.
Claim 21
Dependent Claim
167 words
A dental composition for adhering to tooth material, comprising: a polymerized dental product formed from a dental cement, said cement comprising a compound of the general formula ##STR16## wherein X, is O, S, ##STR17## R 1 and R 2 each independently is a polymerizable unsaturated moiety having from 2 to 13 carbon atoms; R 3 , R 4 , R 5 , and R 6 each independently is hydrogen, halogen, alkyl of from 1 to 10 carbon atoms or halogenated alkyl of from 1 to 10 carbon atoms; R 9 , R 10 , R 11 , R 12 , R 13 and R 14 each independently is hydrogen, alkyl having from 1 to 10 carbon atoms or aryl having from 6 to 10 carbon atoms. Z 1 and Z 2 each independently is a moiety including an acid group or a reactive acid derivative; a, m and n each independently is 0 or 1; b and p each independently is an integer from 1 to 10.
Claim 22
Dependent Claim
167 words
A dental composition for adhering to tooth material, comprising: a polymerized dental product formed from a dental cement, said cement comprising a compound of the general formula ##STR16## wherein X, is O, S, ##STR17## R 1 and R 2 each independently is a polymerizable unsaturated moiety having from 2 to 13 carbon atoms; R 3 , R 4 , R 5 , and R 6 each independently is hydrogen, halogen, alkyl of from 1 to 10 carbon atoms or halogenated alkyl of from 1 to 10 carbon atoms; R 9 , R 10 , R 11 , R 12 , R 13 and R 14 each independently is hydrogen, alkyl having from 1 to 10 carbon atoms or aryl having from 6 to 10 carbon atoms. Z 1 and Z 2 each independently is a moiety including an acid group or a reactive acid derivative; a, m and n each independently is 0 or 1; b and p each independently is an integer from 1 to 10.
Claim 23
Dependent Claim
25 words
The dental composition of claim 19 wherein said polymerized product is a dental filling material, pit and fissure sealant, luting cement, base or orthodontic cement.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-08-15 | 1998-02-14 | 1998-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-08-15 | 2002-02-14 | 2002-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-08-15 | 2006-02-14 | 2006-08-16 | $7700.00 | Window Closed / Lapsed |