US4715813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of determining materials of suitable colours for a tooth repair layer of prosthesis facet, and a sample set for applying this method
Assignee: Individual
•
Filing: 1986-07-01
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Granted: 1987-12-29
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Expires: 2006-07-01
Abstract
Abstract Method of determining materials of suitable colours for the base and top layers of a tooth repair layer or prosthesis facet with the aid of colour samples composed of a plurality of layers. Separate samples are used for the base and top layers. They are optically connected by wetting with a liquid. The liquid may also itself be used to form one of the sample layers.
Inventors
- 👤 Ernst Muhlbauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:30
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
56 words
An assembled sample for determining materials of suitable colors for the base and top layer of a tooth repair component, comprising: a base layer color sample; a top layer color sample; wherein one of the base or top layer color samples is in the form of a liquid optically connected without bonding to the other layer.
Claim 2
Dependent Claim
56 words
An assembled sample for determining materials of suitable colors for the base and top layer of a tooth repair component, comprising: a base layer color sample; a top layer color sample; wherein one of the base or top layer color samples is in the form of a liquid optically connected without bonding to the other layer.
Claim 3
Dependent Claim
17 words
The assembled sample according to claim 1, wherein the base layer color sample is an opaque liquid.
Claim 4
Dependent Claim
12 words
The assembled sample according to claim 2, wherein the liquid is colored.
Claim 5
Dependent Claim
35 words
The assembled sample according to claim 1, wherein the base layer color sample is solid, said assembled sample further including another solid layer color sample overlapping and optically connected with said top layer color sample.
Claim 6
Dependent Claim
92 words
A sample set for determining materials of suitable colors for the base and top layers of a tooth repair component with the aid of samples composed of a plurality of layers, comprising: at least one solid base layer color sample; at least one solid top layer color sample, each of said top layer color samples adapted for selective overlapping positioning of one of said base layer color samples; and a supply of liquid for application between the base and top layer color samples to optically connect the layers without bonding the layers.
Claim 7
Dependent Claim
92 words
A sample set for determining materials of suitable colors for the base and top layers of a tooth repair component with the aid of samples composed of a plurality of layers, comprising: at least one solid base layer color sample; at least one solid top layer color sample, each of said top layer color samples adapted for selective overlapping positioning of one of said base layer color samples; and a supply of liquid for application between the base and top layer color samples to optically connect the layers without bonding the layers.
Claim 8
Independent Claim
110 words
A method of determining materials of suitable colors for the base and top layers of a tooth repair component comprising: (a) selecting a base layer color sample; (b) selecting a top layer color sample; (c) overlapping the top and base layer color samples; (d) introducing a liquid between the overlapping layer color samples to optically connect the samples and form an assembled component sample; (e) comparing the color of the component sample to the color of a natural tooth; (f) determining whether the color of the component sample satisfactorily matches the color of the natural tooth and if not, (g) repeating steps (a)-(f) until a satisfactory component sample is assembled.
Claim 9
Independent Claim
110 words
A method of determining materials of suitable colors for the base and top layers of a tooth repair component comprising: (a) selecting a base layer color sample; (b) selecting a top layer color sample; (c) overlapping the top and base layer color samples; (d) introducing a liquid between the overlapping layer color samples to optically connect the samples and form an assembled component sample; (e) comparing the color of the component sample to the color of a natural tooth; (f) determining whether the color of the component sample satisfactorily matches the color of the natural tooth and if not, (g) repeating steps (a)-(f) until a satisfactory component sample is assembled.
Claim 10
Dependent Claim
35 words
The method according to claim 6, wherein the base and top layer color samples are solid and a colorless, transparent liquid is introduced between the base layer and top layer color samples, wetting them both.
Claim 11
Dependent Claim
11 words
The method according to claim 7, wherein the liquid is colored.
Claim 12
Dependent Claim
14 words
The sample set according to claim 5, wherein the liquid is transparent and colored.
Claim 13
Dependent Claim
12 words
The sample set according to claim 5, wherein the liquid is opaque.
References Cited (Backward Citations)
US1582122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-28 | 1991-06-29 | 1991-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-28 | 1995-06-29 | 1995-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-28 | 1999-06-29 | 1999-12-29 | $7700.00 | Window Closed / Lapsed |