US4725230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orthodontic wire retainer
Assignee: K O L YK
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Filing: 1986-08-06
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Granted: 1988-02-16
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Expires: 2006-08-06
Abstract
Abstract An orthodontic wire retainer for application to the dental arch following an orthodontic treatment, which includes a first metal wire laid along the posterior surface of a dental arch, a second metal wire laid along the anterior surface of the dental arch, and a third metal wire configured to fit between a canine and a premolar or between a premolar and a molar. The first and second metal wires are brazed to the third metal wire to provide an annular bridge resiliently supporting the dental arch. The third metal wire is configured to provide additional support with the second metal wire on the anterior surface of a tooth at one end of the dental arch and to retain an adjacent tooth external of the bridge.
Inventors
- 👤 Toshio Harima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:54
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
222 words
An orthodontic wire retainer for application to a dental arch following an orthodontic treatment, comprising a first metal wire adapted to conform with the posterior surface of a dental arch, a second metal wire adapted to conform with the anterior surface of the dental arch, and a third metal wire configured to fit between a canine and a premolar or between a premolar and a molar, said third metal wire being brazed to said first and second metal wires to constitute an annular bridge providing a resilient support for a plurality of teeth along the dental arch with one end of said third metal wire brazed to said second metal wire at a point spaced from one end of said second metal wire thereby providing a portion of said second metal wire extending beyond its brazed juncture with said third metal wire, said first metal wire supporting the posterior surface of at least one tooth at one end of said dental arch and said extended portion of said second metal wire and said third metal wire extending in spaced relation along a portion of the anterior surface of said one tooth whereby said one tooth is resiliently supported by said first metal wire on its posterior surface and by said second metal wire and said third metal wire on its anterior surface.
Claim 2
Dependent Claim
222 words
An orthodontic wire retainer for application to a dental arch following an orthodontic treatment, comprising a first metal wire adapted to conform with the posterior surface of a dental arch, a second metal wire adapted to conform with the anterior surface of the dental arch, and a third metal wire configured to fit between a canine and a premolar or between a premolar and a molar, said third metal wire being brazed to said first and second metal wires to constitute an annular bridge providing a resilient support for a plurality of teeth along the dental arch with one end of said third metal wire brazed to said second metal wire at a point spaced from one end of said second metal wire thereby providing a portion of said second metal wire extending beyond its brazed juncture with said third metal wire, said first metal wire supporting the posterior surface of at least one tooth at one end of said dental arch and said extended portion of said second metal wire and said third metal wire extending in spaced relation along a portion of the anterior surface of said one tooth whereby said one tooth is resiliently supported by said first metal wire on its posterior surface and by said second metal wire and said third metal wire on its anterior surface.
Claim 3
Dependent Claim
20 words
An orthodontic wire retainer according to claim 1 wherein the metal wires constituting said annular bridge are stainless steel wires.
Claim 4
Dependent Claim
19 words
An orthodontic wire retainer according to claim 1 wherein the metal wires constituting said annular bridge are cobalt-chromium wires.
Claim 5
Dependent Claim
62 words
An orthodontic wire retainer according to claim 1 wherein the diameter of said second metal wire is less than the diameter of said first and third metal wires and the relative diameters of said first, second and third metal wires constituting said annular bridge are such than an orthodontic pressure appropriate for prevention of a relapse is applied to the dental arch.
Claim 6
Dependent Claim
60 words
An orthodontic wire retainer according to claim 1 wherein said third metal wire is configured to extend along the anterior and posterior surfaces of a tooth adjacent to said one tooth at one end of said dental arch thereby retaining at least one tooth external of said annular bridge to said one tooth at one end of said dental arch.
Claim 7
Dependent Claim
33 words
An orthodontic wire retainer according to claim 5 wherein said one tooth at one end of said dental arch is a canine and the tooth adjacent to said one tooth is a premolar.
References Cited (Backward Citations)
US1130242A
Cited
US1361661A
Cited
DE595207C
Cited
US4090299A
Cited
US4472138A
Cited
US4413978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-02-15 | 1991-08-17 | 1992-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-15 | 1995-08-17 | 1996-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-15 | 1999-08-17 | 2000-02-16 | $7700.00 | Window Closed / Lapsed |