US3721005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orthodontic bracket
Assignee: Individual
•
Filing: 1971-08-31
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Granted: 1973-03-20
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Expires: 1991-08-31
Abstract
Abstract A selectively adjustable orthodontic bracket for use in both torqueing and uprighting of malpositioned teeth. The bracket permits coupling a conventional orthodontic arch wire to the tooth band positioned about a malpositioned tooth so as to permit selective rotation of the arch wire either about its axis or transversely thereto with respect to the tooth to thereby insure the transmission of desired forces between the arch wire and the tooth. The bracket is formed with a slotted arch wire engaging plate, the arch wire being engaged within the slot of said arch wire engaging plate. A universal joint is formed on the side of the arch wire engaging plate remote from the slot for securement to the tooth engaging band, the universal joint being selectively fixable in any position to which set so that the arch wire engaging plate may be rotated about an axis parallel or transverse to that of the arch wire, to permit selective provision of either torqueing or uprighting forces to the tooth.
Inventors
- 👤 H Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:54
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/12; A61C7/14
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
99 words
An orthodontic bracket comprising: a base member fixedly securable with respect to a tooth, the position of which is to be corrected; an arch wire engaging plate coupled to said base member; a pivot coupling between said arch wire engaging plate and said base member permitting selective pivoting of said plate about an axis parallel to the arch wire; and means for locking the plate against pivoting after it is set in a desired angle whereby desired lines of torqueing force may be established between the arch wire and tooth to correct buccal or lingual displacement of the tooth.
Claim 2
Dependent Claim
99 words
An orthodontic bracket comprising: a base member fixedly securable with respect to a tooth, the position of which is to be corrected; an arch wire engaging plate coupled to said base member; a pivot coupling between said arch wire engaging plate and said base member permitting selective pivoting of said plate about an axis parallel to the arch wire; and means for locking the plate against pivoting after it is set in a desired angle whereby desired lines of torqueing force may be established between the arch wire and tooth to correct buccal or lingual displacement of the tooth.
Claim 3
Dependent Claim
64 words
An orthodontic bracket as in claim 1 in which said pivot coupling comprises: means supporting said arch wire engaging plate for rotation with respect to said base member about an axis perpendicular to the arch wire and extending into the dental arch in addition to permitting rotation about an axis parallel to the arch wire, whereby both torqueing and uprighting forces may be provided.
Claim 4
Dependent Claim
55 words
An orthodontic bracket as in claim 1 in which said pivot coupling comprises a pivot support member extending perpendicularly between the plane of said arch wire engaging plate and said base member fixed to the tooth, said support member having a point providing an axis about which said arch wire engaging support may be pivoted.
Claim 5
Dependent Claim
69 words
An orthodontic bracket as in claim 3 in which said pivot support member comprises a pair of spaced ears upstanding from said base member; a pivot pin connection between said ears and said arch wire engaging plate along an axis parallel to the arch wire; and said means for locking the plate comprise a lock pin extending into a locking aperture in said ears eccentric of said pivot pin.
Claim 6
Dependent Claim
31 words
An orthodontic bracket as in claim 4 in which said ears are positioned on a gimbal ring rotatably mounted on said base member about an axis perpendicular to said base member.
Claim 7
Dependent Claim
35 words
An orthodontic bracket as in claim 5 in which said gimbal ring is provided with means for selectively fixing same in a selected position after it has been rotated with respect to said base member.
Claim 8
Dependent Claim
60 words
An orthodontic bracket as in claim 6 in which said gimbal ring is mounted on a base ring, said gimbal ring and said locking ring each having a locking aperture subject to alignment as said gimbal ring is rotated; and a locking pin insertable into said apertures to fix said gimbal ring against rotation with respect to said base ring.
Claim 9
Dependent Claim
67 words
An orthodontic bracket as in claim 1 in which said pivot coupling comprises: a socket; a member rotatably secured in said socket and pivotable about two axes at 90* with respect to each other; and said means for locking the plate against pivoting comprise means effecting fixing engagement between said socket and member rotatably received therein to lock said member in a desired orientation in said socket.
Claim 10
Dependent Claim
61 words
An orthodontic bracket as in claim 1 in which said pivot coupling comprises: a hollow split spherical socket member secured to said base member; and a ball secured to said arch wire engaging plate; and seated in said socket; and said locking means comprise a selectively adjustable screw extending between said socket member parts to bring same together against said ball.
Claim 11
Independent Claim
87 words
A method of applying torqueing forces to a buccally or lingually displaced tooth comprising the steps of: securing an arch wire in position in the mouth of a patient to extend over the tooth, the orientation of which is to be corrected; securing a base member to the tooth; securing a bracket to the arch wire; pivoting the racket to the base member about an axis parallel to the arch wire; adjusting the bracket to a desired torqueing angle; and fixing the bracket in the adjusted position.
Claim 12
Independent Claim
87 words
A method of applying torqueing forces to a buccally or lingually displaced tooth comprising the steps of: securing an arch wire in position in the mouth of a patient to extend over the tooth, the orientation of which is to be corrected; securing a base member to the tooth; securing a bracket to the arch wire; pivoting the racket to the base member about an axis parallel to the arch wire; adjusting the bracket to a desired torqueing angle; and fixing the bracket in the adjusted position.
References Cited (Backward Citations)
US2379011A
Cited
US3423833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |