CA2536878A1 - Automated method for producing improved orthodontic aligners - Google Patents

Automated method for producing improved orthodontic aligners Download PDF

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Publication number
CA2536878A1
CA2536878A1 CA002536878A CA2536878A CA2536878A1 CA 2536878 A1 CA2536878 A1 CA 2536878A1 CA 002536878 A CA002536878 A CA 002536878A CA 2536878 A CA2536878 A CA 2536878A CA 2536878 A1 CA2536878 A1 CA 2536878A1
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Prior art keywords
aligner
cad model
patient
forming
orthodontic
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CA002536878A
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French (fr)
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CA2536878C (en
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Jack Keith Hilliard
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/002—Orthodontic computer assisted systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing

Abstract

A method for producing orthodontic aligners (20) uses a CAD system to modify a digital model of the patient~s oral anatomy (10) to incorporate features that accommodate attachment of aligner auxiliaries (30) to the completed aligner(s) (20).

Claims (23)

1. A method for producing orthodontic aligners to accommodate aligner auxiliaries, said method comprising:
creating a CAD model of at least a portion of a patient's dental anatomy;
manipulating the CAD model to design an aligner having at least one feature to accommodate attachment of an aligner auxiliary to the aligner for exerting a therapeutic force on a desired portion of a patient's dental anatomy;
forming an orthodontic aligner from the CAD model incorporating the features to accommodate aligner auxiliaries; and attaching aligner auxiliaries to the features of the orthodontic aligner.
2. The method of claim 1 wherein the step of creating the CAD model further comprises the steps of:
creating a physical model of at least a portion of a patient's dental anatomy; and scanning the physical model to create the CAD model.
3. The method of claim 1 wherein the step of creating the CAD model further comprises scanning at least a portion of the patient's dental anatomy.
4. The method of claim 1 wherein the step of manipulating the CAD model further comprises manipulating the CAD model to design a plurality of aligners for sequential use during a patient's orthodontic treatment.
5. ~The method of claim 1 wherein the step of manipulating the CAD model further comprises forming a divot marker to indicate placement of an aligner auxiliary on the aligner.
6. ~The method of claim 5 wherein the step of forming an orthodontic aligner further comprises forming a opening in the aligner at the location of the divot marker to receive an aligner auxiliary.
7. ~The method of claim 1 wherein the step of manipulating the CAD model further comprises forming an outset land to attach an aligner auxiliary to the aligner.
8. ~The method of claim 1 wherein the step of forming the orthodontic aligner further comprises:
forming a physical pattern from the CAD model representing at least a portion of the patient's dental anatomy as modified by the step of manipulating the CAD model; and forming an orthodontic aligner over the physical pattern.
9. ~The method of claim 1 wherein the step of manipulating the CAD model comprises modifying selected portions of the patient's dental anatomy in the CAD model to achieve desired positions during orthodontic treatment, and incorporating features to accommodate aligner auxiliaries.
10. ~A method for producing orthodontic aligners to accommodate aligner auxiliaries, said method comprising:
creating a CAD model of at least a portion of a patient's dental anatomy;

manipulating the CAD model to create a plurality of modified representations of a patient's dental anatomy for creating a plurality of aligners for sequential use during a patient's orthodontic treatment;
manipulating the CAD model to incorporate at least one feature to accommodate attachment of an aligner auxiliary to at least one of the aligners for exerting a therapeutic force on a desired portion of a patient's dental anatomy;
forming a series of orthodontic aligners from the CAD model incorporating the features to accommodate aligner auxiliaries; and attaching aligner auxiliaries to the features of the orthodontic aligners.
11. ~The method of claim 10 wherein the step of creating the CAD model further comprises the steps of:
creating a physical model of at least a portion of a patient's dental anatomy; and scanning the physical model to create the CAD model.
12. ~The method of claim 10 wherein the step of creating the CAD model further comprises scanning at least a portion of the patient's dental anatomy.
13. ~The method of claim 10 wherein the step of manipulating the CAD model further comprises forming a divot marker to indicate placement of an aligner auxiliary on the aligner.
14. ~The method of claim 13 wherein the step of forming an orthodontic aligner further comprises forming a opening in the aligner at the location of the divot marker to receive an aligner auxiliary.
15. The method of claim 10 wherein the step of manipulating the CAD model further comprises forming an outset land to attach an aligner auxiliary to the aligner.
16. The method of claim 10 wherein the step of forming the orthodontic aligner further comprises:
forming physical patterns from the modified CAD model for each of the aligners; and forming the aligners over the physical patterns.
17. A method for producing orthodontic aligners to accommodate aligner auxiliaries, said method comprising:
creating a CAD model of at least a portion of a patient's dental anatomy;
manipulating the CAD model to create a modified representation of a patient's dental anatomy to design an orthodontic aligner having at least one feature to accommodate attachment of an aligner auxiliary to the aligner for exerting a therapeutic force on a desired portion of a patient's dental anatomy;
forming a physical pattern of the modified representation of a~
patient's dental anatomy from the modified CAD model;
forming an aligner over the physical pattern incorporating the features to accommodate aligner auxiliaries; and attaching aligner auxiliaries to the features of the orthodontic aligner.
18. ~The method of claim 17 wherein the step of creating the CAD model further comprises the steps of:
creating a physical model of at least a portion of a patient's dental anatomy; and scanning the physical model to create the CAD model.
19. ~The method of claim 17 wherein the step of creating the CAD model further comprises scanning at least a portion of the patient's dental anatomy.
20. ~The method of claim 17 wherein the step of manipulating the CAD model further comprises manipulating the CAD
model to design a plurality of aligners for sequential use during a patient's orthodontic treatment.
21. ~The method of claim 17 wherein the step of manipulating the CAD model further comprises forming a divot marker to indicate placement of an aligner auxiliary on the aligner.
22. ~The method of claim 21 wherein the step of forming an orthodontic aligner further comprises forming a opening in the aligner at the location of the divot marker to receive an aligner auxiliary.
23. ~The method of claim 17 wherein the step of manipulating the CAD model further comprises forming an outset land to attach an aligner auxiliary to the aligner.
CA2536878A 2003-08-29 2004-08-26 Automated method for producing improved orthodontic aligners Active CA2536878C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US49878103P 2003-08-29 2003-08-29
US60/498,781 2003-08-29
US10/926,462 US7077646B2 (en) 2003-08-29 2004-08-25 Automated method for producing improved orthodontic aligners
US10/926,462 2004-08-25
PCT/US2004/027603 WO2005023129A2 (en) 2003-08-29 2004-08-26 Automated method for producing improved orthodontic aligners

Publications (2)

Publication Number Publication Date
CA2536878A1 true CA2536878A1 (en) 2005-03-17
CA2536878C CA2536878C (en) 2011-07-12

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Family Applications (1)

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CA2536878A Active CA2536878C (en) 2003-08-29 2004-08-26 Automated method for producing improved orthodontic aligners

Country Status (7)

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US (1) US7077646B2 (en)
EP (1) EP1682029B1 (en)
JP (1) JP5123526B2 (en)
AU (1) AU2004270173B2 (en)
CA (1) CA2536878C (en)
ES (1) ES2405261T3 (en)
WO (1) WO2005023129A2 (en)

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