US4810195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conditioning liquids for tooth or bone matter
Assignee: Kulzer GmbH
•
Filing: 1988-04-15
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Granted: 1989-03-07
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Expires: 2008-04-15
Abstract
Abstract A solution for conditioning tooth or bone matter for filling, containing an acid and an amphoteric amino compound, the solution having a pH from 0.1 to 3.5.
Inventors
- 👤 Erik Asmussen
- 👤 Erik C. Munksgaard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:09
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/40
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
57 words
A solution for conditioning tooth or bone matter comprising an aqueous solution of an acid with a pK A value of less than +5 and of an amphoteric amino compound with a pK A value from 3.9 to 12.5 and a pK B value from 10.5 to 13.5, the solution having a pH from 0.1 to 3.5.
Claim 2
Dependent Claim
57 words
A solution for conditioning tooth or bone matter comprising an aqueous solution of an acid with a pK A value of less than +5 and of an amphoteric amino compound with a pK A value from 3.9 to 12.5 and a pK B value from 10.5 to 13.5, the solution having a pH from 0.1 to 3.5.
Claim 3
Dependent Claim
18 words
A solution according to claim 1, wherein the acid has a pK A value from -9 to +5.
Claim 4
Dependent Claim
29 words
A solution according to claim 1, wherein the amphoteric amino compound has a pK A value from 9.0 to 10.6 and a pK B value from 11.5 to 12.5.
Claim 5
Dependent Claim
13 words
A solution according to claim 1 having a pH from 1.5 to 2.5.
Claim 6
Dependent Claim
47 words
In the filling of a tooth with a plastic filling material wherein the dentin of the tooth to be filled is pretreated with a liquid, and the treated tooth is then filled, the improvement which comprises employing as the pretreatment liquid a solution according to claim 1.
Claim 7
Dependent Claim
17 words
The process according to claim 5, wherein between the pretreatment and the filling the tooth is coated.
References Cited (Backward Citations)
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Cited
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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) | 1992-03-06 | 1992-09-05 | 1993-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-06 | 1996-09-05 | 1997-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-06 | 2000-09-05 | 2001-03-07 | $7700.00 | Window Closed / Lapsed |