Patent US3748741A successfully refreshed from Google Patents.
US3748741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Model for tooth color matching
Assignee: Individual
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Filing: 1972-06-08
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Granted: 1973-07-31
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Expires: 1992-06-08
Abstract
Abstract Models for tooth color matching include a body member and a handle on which the body member is pivotally mounted. The body member is adapted for placement in a patient''s mouth in front of a prepared tooth, and has a sidewall portion with a generally concave inner surface providing an obstruction-free central area to accommodate the prepared tooth; an enamel-simulating veneer material may be provided on the body member if so desired.
Inventors
- 👤 J Yerkes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:49
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
165 words
In a model for tooth color matching, the combination comprising: a body member having a thin sidewall portion adapted for placement in a patient''s mouth in front of a prepared tooth with its outer face in substantial alignmenT with the faces of existing teeth adjacent thereto and with a lower edge adjacent the patient''s gums, said sidewall portion having a generally concave inner surface providing an obstruction-free central area extending upwardly from said lower edge of said sidewall portion for the accommodation of the prepared tooth therewithin and said outer face thereof being adapted for coating with a tooth enamelsimulating veneer material, said body member also having a top wall portion adapted to seat on the top edge of the prepared tooth to mount said body member on the prepared tooth and handleengaging means on said top wall portion and spaced from said central area; and a handle member releasably coupled with said handle-engaging means and mounting said body member for pivotal movement relative thereto.
Claim 2
Dependent Claim
165 words
In a model for tooth color matching, the combination comprising: a body member having a thin sidewall portion adapted for placement in a patient''s mouth in front of a prepared tooth with its outer face in substantial alignmenT with the faces of existing teeth adjacent thereto and with a lower edge adjacent the patient''s gums, said sidewall portion having a generally concave inner surface providing an obstruction-free central area extending upwardly from said lower edge of said sidewall portion for the accommodation of the prepared tooth therewithin and said outer face thereof being adapted for coating with a tooth enamelsimulating veneer material, said body member also having a top wall portion adapted to seat on the top edge of the prepared tooth to mount said body member on the prepared tooth and handleengaging means on said top wall portion and spaced from said central area; and a handle member releasably coupled with said handle-engaging means and mounting said body member for pivotal movement relative thereto.
Claim 3
Dependent Claim
24 words
The model of claim 1 wherein said outer face of said sidewall portion is configured to simulate the corresponding face of a natural tooth.
Claim 4
Dependent Claim
53 words
The model of claim 1 wherein said handle-engaging means comprises a knob extending upwardly and inwardly from adjacent an upper portion of said sidewall portion and has a ball-shaped element on its free end, and wherein said handle member includes a socket in which said ball-shaped element of said handle-engaging means is seated.
Claim 5
Dependent Claim
49 words
The model of claim 1 wherein said body member top wall portion is thin and extends laterally from the upper edge portion of said sidewall portion to provide an occlusal surface on said body member, said occlusal surface also being adapted for coating with a tooth enamel-simulating veneer material.
Claim 6
Dependent Claim
19 words
The model of claim 4 wherein said handle-engaging means comprises a knob extending upwardly from said top wall portion.
Claim 7
Dependent Claim
22 words
The model of claim 1 wherein said model additionally includes a coating of colored tooth enamel-simulating veneer material on said outer face.
Claim 8
Dependent Claim
21 words
The model of claim 6 wherein said body member is of metallic construction and wherein said vener material is a porcelain.
Claim 9
Dependent Claim
23 words
The model of claim 6 wherein the material from which said body member is fabricated and said veneer material are both synthetic resins.
References Cited (Backward Citations)
DE1491108A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |