US5035612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Debonding tip for electrothermal dental bracket removal
Assignee: Ormco Corp
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Filing: 1990-05-02
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Granted: 1991-07-30
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Expires: 2010-05-02
Abstract
Abstract A debonding tip for electrothermal debonding device is disclosed. This debonding tip fits around the mesio distal sides and into the saddle slot of a dental bracket. The debonding tip causes rapid heating of the dental bracket and weakens the adhesive bond used to bond brackets to teeth. With the increased viscosity, the bracket is able to be rotated around and pulled off the tooth. <IMAGE>
Inventors
- 👤 Patrick Martin
- 👤 Richard L. McMillan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:58
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/02; A61C7/023
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
85 words
A heating element comprising a debonding tip for electrothermally debonding a dental bracket adhesively attached to a tooth, said bonding tip conforming to the surface of the dental bracket in a mating relationship with said bracket surface and further including prongs attachable around the tie wings of a dental bracket and wherein said prongs each comprise a leaf spring which fits on the mesio-distal sides of the bracket, and a rigid outer member against which said leaf spring is forced when placed on said bracket.
Claim 2
Dependent Claim
85 words
A heating element comprising a debonding tip for electrothermally debonding a dental bracket adhesively attached to a tooth, said bonding tip conforming to the surface of the dental bracket in a mating relationship with said bracket surface and further including prongs attachable around the tie wings of a dental bracket and wherein said prongs each comprise a leaf spring which fits on the mesio-distal sides of the bracket, and a rigid outer member against which said leaf spring is forced when placed on said bracket.
Claim 3
Dependent Claim
15 words
The element of claim 1 wherein said bracket and said element interlock with one another.
Claim 4
Dependent Claim
23 words
The element of claim 2 wherein said bracket contains a saddle slot and aid element contains a ridge which fits within said slot.
Claim 5
Dependent Claim
28 words
The element of claim 3 wherein said debonding tip has electrothermal heat applied to it, and the heat envelops said bracket on the surface of said said bracket.
Claim 6
Dependent Claim
10 words
The element of claim 4 wherein said tip is metallic.
Claim 7
Dependent Claim
110 words
A heating element comprising a debonding tip attachable to an electrothermal debracketing device for supplying electrothermal heat to said bracket, comprising: a pair of prongs for placement around said bracket, said prongs each containing a rigid outer member separated by a leaf spring said, leaf spring on each of said prongs configured to be spaced apart at a distance slightly less than the dimension of said bracket to exert force on said bracket when said bracket is placed between said springs by urging each of said springs against each said rigid outer member to hold said tip on said bracket; and a base conforming to the brace of said bracket.
Claim 8
Dependent Claim
110 words
A heating element comprising a debonding tip attachable to an electrothermal debracketing device for supplying electrothermal heat to said bracket, comprising: a pair of prongs for placement around said bracket, said prongs each containing a rigid outer member separated by a leaf spring said, leaf spring on each of said prongs configured to be spaced apart at a distance slightly less than the dimension of said bracket to exert force on said bracket when said bracket is placed between said springs by urging each of said springs against each said rigid outer member to hold said tip on said bracket; and a base conforming to the brace of said bracket.
Claim 9
Dependent Claim
21 words
The element of claim 6 where said base includes a ridge for insertion into a saddle slot of a dental bracket.
Claim 10
Dependent Claim
11 words
The element of claim 6 wherein said springs are leaf springs.
Claim 11
Dependent Claim
10 words
The element of claim 6 wherein said tip is metallic.
Claim 12
Independent Claim
91 words
A method for removing dental bracket adhesively attached to a tooth, comprising: clamping said bracket with a heating element comprising a debonding tip, said element conforming to the surface of said adi bracket and containing a pair of prongs, said prongs including ridge members resiliently controlling a pair of leaf springs which old said tip on said bracket; applying heat to said element such that said bracket and achieve are heated; and rotating said bracket from said tooth when said adhesive is loosened by exerting a torsional force on said element.
Claim 13
Independent Claim
91 words
A method for removing dental bracket adhesively attached to a tooth, comprising: clamping said bracket with a heating element comprising a debonding tip, said element conforming to the surface of said adi bracket and containing a pair of prongs, said prongs including ridge members resiliently controlling a pair of leaf springs which old said tip on said bracket; applying heat to said element such that said bracket and achieve are heated; and rotating said bracket from said tooth when said adhesive is loosened by exerting a torsional force on said element.
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) | 1994-07-29 | 1995-01-28 | 1995-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-29 | 1999-01-28 | 1999-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-29 | 2003-01-28 | 2003-07-30 | $7700.00 | Window Closed / Lapsed |