US5078598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental shade guide
Assignee: 3M Co
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Filing: 1990-08-10
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Granted: 1992-01-07
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Expires: 2010-08-10
Abstract
Abstract A dental shade guide has a tooth-shaped first portion and an elongated second portion which is integrally connected to the first portion. The second portion varies in thickness in stepped fashion along its length. Both portions are made of a material having substantially the same color, thereby enabling the user to compare the color of the shade guide in differing degrees of opacity with the color of tooth structure adjacent the intended restoration, in order to increase the likelihood that the finished restoration will appear as aesthetic as possible.
Inventors
- 👤 Daryl L. Neisse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:31
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/10
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
76 words
A dental shade guide having a first portion and a second portion connected to said first portion, said first portion having a generally tooth-shaped configuration, said second portion being elongated and having a thickenss which varies along its length for providing a varying translucency of said second portion with respect to a direction substantially coincident with said second portion elongation, said first portion and said second portion each made of a material having the same color.
Claim 2
Dependent Claim
76 words
A dental shade guide having a first portion and a second portion connected to said first portion, said first portion having a generally tooth-shaped configuration, said second portion being elongated and having a thickenss which varies along its length for providing a varying translucency of said second portion with respect to a direction substantially coincident with said second portion elongation, said first portion and said second portion each made of a material having the same color.
Claim 3
Dependent Claim
30 words
The shade guide of claim 1, wherein said shade guide is elongated and wherein said first portion has a central axis aligned with the longitudinal axis of said second portion.
Claim 4
Dependent Claim
22 words
The shade guide of claim 2, wherein said tooth-shaped first portion has a base which is directly connected to said second portion.
Claim 5
Dependent Claim
17 words
The shade guide of claim 1, wherein said first portion and said second portion are integrally molded.
Claim 6
Dependent Claim
20 words
The shade guide of claim 1, wherein said first portion and said second portion are made of the same material.
Claim 7
Dependent Claim
20 words
The shade guide of claim 1, wherein said first portion and said second portion each have a flat rear surface.
Claim 8
Dependent Claim
24 words
The shade guide of claim 6, wherein said rear surface of said first portion is coplanar with said rear surface of said second portion.
Claim 9
Dependent Claim
48 words
The shade guide of claim 1, wherein said second portion has a first section of a certain thickness and a second section of a thickness less than said first section, and wherein said first portion is connected to said first section and is remote from said second section.
Claim 10
Dependent Claim
73 words
A dental shade guide having a first portion and a second portion connected to said first portion, said first portion having a generally tooth-shaped configuration, said second portion being elongated and having a thickness which varies along its length, said first portion and said second portion each made of a material having substantially the same color, said thickness of said second portion varying in stepped fashion along the length of said second portion.
Claim 11
Dependent Claim
73 words
A dental shade guide having a first portion and a second portion connected to said first portion, said first portion having a generally tooth-shaped configuration, said second portion being elongated and having a thickness which varies along its length, said first portion and said second portion each made of a material having substantially the same color, said thickness of said second portion varying in stepped fashion along the length of said second portion.
Claim 12
Dependent Claim
75 words
A dental shade guide having a first portion and a second portion connected to said first portion, said first portion having a generally tooth-shaped configuration, said second portion being elongated and having a thickness which varies along its length for providing a varying translucency of said second portion with respect to a direction substantially coincident with said second portion elongation, said first portion and said second portion being integral and made of the same material.
Claim 13
Dependent Claim
75 words
A dental shade guide having a first portion and a second portion connected to said first portion, said first portion having a generally tooth-shaped configuration, said second portion being elongated and having a thickness which varies along its length for providing a varying translucency of said second portion with respect to a direction substantially coincident with said second portion elongation, said first portion and said second portion being integral and made of the same material.
Claim 14
Dependent Claim
72 words
A dental shade guide having a first portion and a second portion connected to said first portion, said first portion having a generally tooth-shaped configuration, said second portion being elongated and having a thickness which varies along its length, said first portion and said second portion being integral and made of substantially the same material, said thickness of said second portion varying in stepped fashion along the length of said second portion.
Claim 15
Dependent Claim
72 words
A dental shade guide having a first portion and a second portion connected to said first portion, said first portion having a generally tooth-shaped configuration, said second portion being elongated and having a thickness which varies along its length, said first portion and said second portion being integral and made of substantially the same material, said thickness of said second portion varying in stepped fashion along the length of said second portion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-01-06 | 1995-07-08 | 1996-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-06 | 1999-07-08 | 2000-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-06 | 2003-07-08 | 2004-01-07 | $7700.00 | Window Closed / Lapsed |