WO2006055242A3 - Computing occlusion in a 3-d virtual orthodontic system - Google Patents

Computing occlusion in a 3-d virtual orthodontic system Download PDF

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Publication number
WO2006055242A3
WO2006055242A3 PCT/US2005/039532 US2005039532W WO2006055242A3 WO 2006055242 A3 WO2006055242 A3 WO 2006055242A3 US 2005039532 W US2005039532 W US 2005039532W WO 2006055242 A3 WO2006055242 A3 WO 2006055242A3
Authority
WO
WIPO (PCT)
Prior art keywords
archwire
position along
computing
treatment planning
occlusion
Prior art date
Application number
PCT/US2005/039532
Other languages
French (fr)
Other versions
WO2006055242A2 (en
Inventor
Richard E Raby
Nicholas A Stark
Original Assignee
3M Innovative Properties Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Priority to EP05825657.9A priority Critical patent/EP1817704B1/en
Priority to JP2007543091A priority patent/JP4885872B2/en
Publication of WO2006055242A2 publication Critical patent/WO2006055242A2/en
Publication of WO2006055242A3 publication Critical patent/WO2006055242A3/en

Links

Classifications

    • 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
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • 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

Abstract

An orthodontic treatment planning system is described that models the effects of torque losses within an orthodontic archwire-appliance system when computing a predicted final occlusion for a dental arch. The treatment planning system models engagement of the archwire with the orthodontic appliances at each appliance position along the length of the archwire. The treatment planning system iteratively determines the twist angle of the archwire at each appliance position along the length of the archwire and incrementally adjusts the orientation and the position of each tooth based on the determined twist angles until the twist angle at each position along the archwire is within a defined tolerance of zero. When the twist angle at each position along the archwire is within a defined tolerance of zero, the archwire is relaxed and a 3D representation of the computed final occlusion of the dental arch may be displayed.
PCT/US2005/039532 2004-11-17 2005-10-31 Computing occlusion in a 3-d virtual orthodontic system WO2006055242A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP05825657.9A EP1817704B1 (en) 2004-11-17 2005-10-31 Computing final occlusion with respect to torque loss in a three-dimensional virtual orthodontic system
JP2007543091A JP4885872B2 (en) 2004-11-17 2005-10-31 Method, system, and computer readable medium for calculating final occlusion

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/990,925 US7869983B2 (en) 2004-11-17 2004-11-17 Computing final occlusion with respect to torque loss in a three-dimensional virtual orthodontic system
US10/990,925 2004-11-17

Publications (2)

Publication Number Publication Date
WO2006055242A2 WO2006055242A2 (en) 2006-05-26
WO2006055242A3 true WO2006055242A3 (en) 2006-11-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/039532 WO2006055242A2 (en) 2004-11-17 2005-10-31 Computing occlusion in a 3-d virtual orthodontic system

Country Status (4)

Country Link
US (1) US7869983B2 (en)
EP (1) EP1817704B1 (en)
JP (1) JP4885872B2 (en)
WO (1) WO2006055242A2 (en)

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Also Published As

Publication number Publication date
EP1817704B1 (en) 2018-01-10
EP1817704A2 (en) 2007-08-15
US7869983B2 (en) 2011-01-11
JP4885872B2 (en) 2012-02-29
JP2008520350A (en) 2008-06-19
WO2006055242A2 (en) 2006-05-26
US20060105286A1 (en) 2006-05-18
EP1817704A4 (en) 2014-11-19

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