US5095602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making an orthodontic bracket
Assignee: Manufacturers Hanover Trust Co
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Filing: 1990-11-28
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Granted: 1992-03-17
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Expires: 2010-11-28
Abstract
Abstract An orthodontic bracket and method of making same wherein the bracket has at least one tie wing integrally formed with a base portion. In one form of the invention the bracket is provided with at least one longitudinally extending groove which extends into the base portion, the groove having at least a portion extending beyond at least a portion of the groove opening. Another aspect of the present invention is directed to a method of making an orthodontic bracket using only ultrasonic machining techniques.
Inventors
- 👤 James F. Reher
- 👤 Farrokh Farzin-Nia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:03
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/0003; A61C13/0006; A61C13/0016; A61C7/00; A61C7/12; A61C7/14; Y; Y10; Y10S; Y10S451/00; Y10S451/91; Y10T; Y10T29/00; Y10T29/49; Y10T29/49567; Y10T29/49568
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
92 words
A method of making an orthodontic bracket having a base portion having a tooth contact surface for attachment to a tooth and at least one tie wing extending from said base portion and integrally formed therewith, said at least one tie wing having an archwire slot for receiving an orthodontic archwire, comprising the steps of: providing a disc of the desired material having a thickness substantially equal to the length of said orthodontic bracket; and machining substantially the entire cross-sectional profile of said orthodontic bracket in one step using only ultrasonic machining.
Claim 2
Independent Claim
92 words
A method of making an orthodontic bracket having a base portion having a tooth contact surface for attachment to a tooth and at least one tie wing extending from said base portion and integrally formed therewith, said at least one tie wing having an archwire slot for receiving an orthodontic archwire, comprising the steps of: providing a disc of the desired material having a thickness substantially equal to the length of said orthodontic bracket; and machining substantially the entire cross-sectional profile of said orthodontic bracket in one step using only ultrasonic machining.
Claim 3
Dependent Claim
22 words
A method according to claim 1 further providing a substantially circular groove in the base of said orthodontic bracket using ultrasonic machining.
Claim 4
Dependent Claim
32 words
A method according to claim 1 wherein said bracket is subjected to a temperature in excess of 1750° Centigrade for a selected period of time so as to substantially remove surface flaws.
Claim 5
Dependent Claim
34 words
A method according to claim 1 further comprising the steps of placing a plurality of said orthodontic brackets in a fixture and machining the top surface of said plurality of brackets using ultrasonic machining.
Claim 6
Dependent Claim
30 words
A method according to claim 4 further comprising the step of: placing said plurality of brackets in a second fixture and machining the bottom surfaces of said plurality of brackets.
Claim 7
Independent Claim
124 words
A method of making an orthodontic bracket having a base portion having a tooth contact surface for attachment to a tooth and at least one tie wing extending from said base portion and integrally formed therewith, said at least one tie wing having an archwire slot for receiving an orthodontic archwire, comprising the steps of: providing a disc of the desired material having a thickness substantially equal to the length of said orthodontic bracket; machining substantially the entire cross-sectional profile of said orthodontic bracket in one step using only ultrasonic machining; machining substantially the entire top configuration of said orthodontic bracket in one step using only ultrasonic machining; and machining substantially the entire base of said bracket in one step using only ultrasonic machining.
Claim 8
Independent Claim
124 words
A method of making an orthodontic bracket having a base portion having a tooth contact surface for attachment to a tooth and at least one tie wing extending from said base portion and integrally formed therewith, said at least one tie wing having an archwire slot for receiving an orthodontic archwire, comprising the steps of: providing a disc of the desired material having a thickness substantially equal to the length of said orthodontic bracket; machining substantially the entire cross-sectional profile of said orthodontic bracket in one step using only ultrasonic machining; machining substantially the entire top configuration of said orthodontic bracket in one step using only ultrasonic machining; and machining substantially the entire base of said bracket in one step using only ultrasonic machining.
Claim 9
Dependent Claim
32 words
A method according to claim 6 wherein said bracket is subjected to a temperature in excess of 1750° Centigrade for a preselected period of time so as to substantially remove surface flaws.
Claim 10
Dependent Claim
35 words
A method according to claim 6 wherein said base portion is subjected to ultrasonic machining so as to provide a rough surface to enhance mechanical adhesion of the bracket to the surface of the tooth.
Claim 11
Independent Claim
106 words
A method of making an orthodontic bracket having a base portion for attachment to a tooth and at least one tie wing integrally formed with and extending from said base portion, said tie wing having a slot for receiving an orthodontic archwire, comprising the steps of: providing a disc of a desired material having a thickness substantially equal to the length of an orthodontic bracket; providing a first profile cut for a plurality of orthodontic brackets at the same time from said disc using only ultrasonic machining; and taking said plurality of brackets and forming the top configuration of said orthodontic bracket using only ultrasonic machining.
Claim 12
Independent Claim
106 words
A method of making an orthodontic bracket having a base portion for attachment to a tooth and at least one tie wing integrally formed with and extending from said base portion, said tie wing having a slot for receiving an orthodontic archwire, comprising the steps of: providing a disc of a desired material having a thickness substantially equal to the length of an orthodontic bracket; providing a first profile cut for a plurality of orthodontic brackets at the same time from said disc using only ultrasonic machining; and taking said plurality of brackets and forming the top configuration of said orthodontic bracket using only ultrasonic machining.
Claim 13
Independent Claim
90 words
A method of making an orthodontic bracket made of sapphire having a base portion or attachment having a tooth contact surface for attachment o a tooth and at least one tie wing extending from said base portion and integrally formed therewith having a slot for receiving an orthodontic archwire, comprising the steps of: providing a disc of the desired material having a thickness substantially equal to the length of said orthodontic bracket; and machining substantially the entire cross-sectional profile of said orthodontic bracket in one step using only ultrasonic machining.
Claim 14
Independent Claim
90 words
A method of making an orthodontic bracket made of sapphire having a base portion or attachment having a tooth contact surface for attachment o a tooth and at least one tie wing extending from said base portion and integrally formed therewith having a slot for receiving an orthodontic archwire, comprising the steps of: providing a disc of the desired material having a thickness substantially equal to the length of said orthodontic bracket; and machining substantially the entire cross-sectional profile of said orthodontic bracket in one step using only ultrasonic machining.
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) | 1995-03-17 | 1995-09-16 | 1996-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-17 | 1999-09-16 | 2000-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-17 | 2003-09-16 | 2004-03-17 | $7700.00 | Window Closed / Lapsed |