US4643678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental application fluid for the inspection of tooth contacts and prosthetic works
Assignee: PRODENT GES fur ZAHNMED BEDARFSARTIKEL MBH
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Filing: 1985-01-30
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Granted: 1987-02-17
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Expires: 2005-01-30
Abstract
Abstract A dental application fluid for the inspection of tooth contacts and prosthetic works comprising an organic, polymeric adhesive (such as shellac), a massive component (such as titanium oxide), and a colored pigment (such as heliogen blue) all dispersed or dissolved in an alcoholic solvent.
Inventors
- 👤 Jens M. Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:38
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/60; A61K6/65; A61K6/25; C; C08; C08L; C08L33/00; C08L33/04; C08L33/06; C08L33/08
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
106 words
A directly applicable, nonviscous, fast drying dental application fluid for the inspection of tooth contacts and prosthetic works, comprising: (a) an organic, polymeric adhesive, (b) a massive component, and (c) a colored pigment distinct from component (b), said components (a), (b) and (c) being dissolved or dispersed, respectively, in an alcoholic solvent (d), wherein said dental application fluid contains 0.5 to 10 weight fractions of component (a), 0.01 to 10 weight fractions of component (c), and 30 to 70 weight fractions of component (d); and wherein 30 to 70 weight percent of the total application fluid are solids having a granularity of less than 10 microns.
Claim 2
Dependent Claim
106 words
A directly applicable, nonviscous, fast drying dental application fluid for the inspection of tooth contacts and prosthetic works, comprising: (a) an organic, polymeric adhesive, (b) a massive component, and (c) a colored pigment distinct from component (b), said components (a), (b) and (c) being dissolved or dispersed, respectively, in an alcoholic solvent (d), wherein said dental application fluid contains 0.5 to 10 weight fractions of component (a), 0.01 to 10 weight fractions of component (c), and 30 to 70 weight fractions of component (d); and wherein 30 to 70 weight percent of the total application fluid are solids having a granularity of less than 10 microns.
Claim 3
Dependent Claim
24 words
An application fluid as recited in claim 1, wherein said adhesive is selected from the group consisting of natural resins and modified natural resins.
Claim 4
Dependent Claim
25 words
An application fluid as recited in claim 1, wherein said adhesive is selected from the group consisting of shellac, colophonium resins, and modified colophonium resins.
Claim 5
Dependent Claim
30 words
An application fluid as recited in claim 1, wherein said adhesive is selected from the group consisting of alkyd resins, polyvinyl acetaldehydes, polyvinyl alcohols, polyvinyl acetates, polyacrylates and ketone resins.
Claim 6
Dependent Claim
15 words
An application fluid as recited in claim 1, wherein said massive component comprises titanium oxide.
Claim 7
Dependent Claim
17 words
An application fluid as recited in claim 1, wherein said colored pigment comprises a blue phthalocyanine pigment.
Claim 8
Dependent Claim
60 words
An application fluid as recited in claim 1, wherein said fluid comprises from about 1% to about 5% polymeric adhesive, from about 40% to about 60% massive component, from about 0.1% to about 2% colored pigment, and from about 40% to about 60% solvent, wherein said percentages are calculated by weight with respect to the total weight of the solution.
Claim 9
Dependent Claim
34 words
An application fluid as recited in claim 7, wherein said polymeric adhesive comprises shellac, wherein said massive component comprises titanium dioxide, wherein said colored pigment comprises heliogen blue, and wherein said solvent comprises ethanol.
Claim 10
Dependent Claim
13 words
An application fluid as recited in claim 3, wherein said adhesive comprises shellac.
Claim 11
Dependent Claim
59 words
A process for dental inspection, comprising the steps of: (a) applying a fluid as defined in claim 1 to the surface of a tooth, crown, bridge or inlay; (b) allowing said fluid to dry on said surface; (c) applying pressure to said fluid-coated surface to produce pressure and contact points thereon; and (d) inspecting said pressure and contact points.
Claim 12
Dependent Claim
23 words
An application fluid as recited in claim 1, wherein said massive component is selected from the group consisting of inert, pharmaceutically compatible pigments.
Claim 13
Dependent Claim
15 words
An application fluid as recited in claim 11, wherein said massive component is titanium white.
Claim 14
Dependent Claim
99 words
A directly applicable, nonviscous, fast drying dental application fluid for the inspection of tooth contacts and prosthetic works, comprising: (a) an organic polymeric adhesive, (b) a titanium dioxide component, and (c) a colored pigment, said components (a), (b), (c) being dissolved or dispersed, respectively, in a physiologically harmless alcoholic solvent comprising ethanol, wherein said dental application fluid contains 0.5 to 10 weight fractions of component (a), 0.01 to 10 weight fractions of component (c), and 30 to 70 weight fractions of said alcoholic solvent; and wherein the solids content of the application fluid is 30 to 70 weight percent.
Claim 15
Dependent Claim
99 words
A directly applicable, nonviscous, fast drying dental application fluid for the inspection of tooth contacts and prosthetic works, comprising: (a) an organic polymeric adhesive, (b) a titanium dioxide component, and (c) a colored pigment, said components (a), (b), (c) being dissolved or dispersed, respectively, in a physiologically harmless alcoholic solvent comprising ethanol, wherein said dental application fluid contains 0.5 to 10 weight fractions of component (a), 0.01 to 10 weight fractions of component (c), and 30 to 70 weight fractions of said alcoholic solvent; and wherein the solids content of the application fluid is 30 to 70 weight percent.
Claim 16
Dependent Claim
16 words
An application fluid as recited in claim 13, wherein said titanium dioxide component is titanium white.
Claim 17
Dependent Claim
59 words
A process for dental inspection, comprising the steps of: (a) applying a fluid as defined in claim 13 to the surface of a tooth, crown, bridge or inlay; (b) allowing said fluid to dry on said surface; (c) applying pressure to said fluid-coated surface to produce pressure and contact points thereon; and (d) inspecting said pressure and contact points.
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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) | 1990-02-16 | 1990-08-18 | 1991-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-16 | 1994-08-18 | 1995-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-16 | 1998-08-18 | 1999-02-17 | $7700.00 | Window Closed / Lapsed |