US4913653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axis indicator for orthodotic bracket
Assignee: Ormco Corp
•
Filing: 1989-03-20
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Granted: 1990-04-03
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Expires: 2009-03-20
Abstract
Abstract An axis indicator (100) contains a long rectangular tube (101) placed within the saddle of a dental bracket (10). The indicator contains a projection (110) which is parallel to the archwire slot (40) in the dental bracket (10) and can be aligned parallel to the occlusal plane (2) of the patient. Thus, use of the axis indicator (100) insures proper placement of the dental bracket (10) on the teeth.
Inventors
- 👤 Diane K. Bolliger
- 👤 Howard Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:22
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/12
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
90 words
An improved axis indicator for use with a dental bracket having a pair of tie wings separated by a ridge and an archwire slot comprising: a insert adapted to fit between the tie wings of said bracket in said bracket ridge, said insert containing a projection extending along one outer edge of said bracket and parallel to said archwire slot, said projection used to orient said bracket parallel to the occlusal plane of the mouth insuring that said tie wings are oriented along the crown long axis of the tooth.
Claim 2
Dependent Claim
90 words
An improved axis indicator for use with a dental bracket having a pair of tie wings separated by a ridge and an archwire slot comprising: a insert adapted to fit between the tie wings of said bracket in said bracket ridge, said insert containing a projection extending along one outer edge of said bracket and parallel to said archwire slot, said projection used to orient said bracket parallel to the occlusal plane of the mouth insuring that said tie wings are oriented along the crown long axis of the tooth.
Claim 3
Dependent Claim
30 words
The axis indicator of claim 1 wherein said insert contains rounded detents extending from said insert surface, said detents maintaining a press fit between said insert and said tie wings.
Claim 4
Dependent Claim
34 words
The axis indicator of claim 1 wherein said insert contains a slot configured to fit within said bracket archwire slot, in order to allow the placement of a dental positioning tool within said slots.
Claim 5
Dependent Claim
48 words
For use with a dental bracket having an archwire slot and a pair of tie wings separated by a ridge, an axis indicator generally conforming to said ridge between the tie wings and projecting from the tie wings along one tie wing edge parallel to said archwire slot.
Claim 6
Dependent Claim
48 words
For use with a dental bracket having an archwire slot and a pair of tie wings separated by a ridge, an axis indicator generally conforming to said ridge between the tie wings and projecting from the tie wings along one tie wing edge parallel to said archwire slot.
Claim 7
Dependent Claim
30 words
The axis indicator of claim 4 wherein said insert contains rounded detents extending from said insert surface, said detents maintaining a press fit between said insert and said tie wings.
Claim 8
Dependent Claim
34 words
The axis indicator of claim 5 wherein said insert contains a slot configured to fit within said bracket archwire slot in order to allow the placement of a dental positioning tool within said slots.
Claim 9
Dependent Claim
55 words
The axis indicator of claim 6 wherein said projection is angled with said rectangular insert at the same angle between said archwire slot and said tie wing ridge such that when placing said axis indicator along the long axis of said tooth said archwire slot will be placed along the occlusal plane of the mouth.
Claim 10
Dependent Claim
61 words
A dental bracket axis indicator comprising a generally rectangular insert having one side fitting between the tie wings of said bracket in an interference fit and a projection from said insert extending generally parallel to said bracket archwire slot, said axis indicator used to align said bracket parallel to said archwire slot and along the crown long axis of the tooth.
Claim 11
Dependent Claim
61 words
A dental bracket axis indicator comprising a generally rectangular insert having one side fitting between the tie wings of said bracket in an interference fit and a projection from said insert extending generally parallel to said bracket archwire slot, said axis indicator used to align said bracket parallel to said archwire slot and along the crown long axis of the tooth.
Claim 12
Dependent Claim
30 words
The axis indicator of claim 8 wherein said insert contains rounded detents extending from said insert surface, said detents maintaining said interference fit between said insert and said tie wings.
Claim 13
Dependent Claim
36 words
The axis indicator of claim 8 wherein said insert contains a positioning slot configured to fit within said bracket archwire slot in order to allow the placement of a dental positioning tool within said aligned slots.
References Cited (Backward Citations)
US3521355A
Cited
US4523908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-02 | 1993-10-02 | 1994-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-02 | 1997-10-02 | 1998-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-02 | 2001-10-02 | 2002-04-03 | $7700.00 | Window Closed / Lapsed |