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Three Dimensional Deformation of Orthodontic Brackets Open Access


Other title
Digital Image Correlation
Orthodontic Brackets
Type of item
Degree grantor
University of Alberta
Author or creator
Melenka, Garrett W.
Supervisor and department
Nobes, David (Mechanical Engineering)
Carey, Jason (Mechanical Engineering)
Examining committee member and department
Toogood, Roger (Mechanical Engineering)
Major, Paul (Medicine and Dentistry)
Carey, Jason (Mechanical Engineering)
Nobes, David (Mechanical Engineering)
Department of Mechanical Engineering

Date accepted
Graduation date
Master of Science
Degree level
Braces are commonly used to correct misalignments or malocclusions in the mouth. One particular orthodontic treatment utilizes archwire rotation to control the anterior inclination of a tooth and motion is achieved through the interaction of a rectangular archwire within the rectangular bracket slot. The mechanical interaction between the wire and bracket slot can result in both elastic and plastic bracket deformation. To investigate bracket deformation due to archwire rotation the Orthodontic Torsion Simulator (OTS) was developed at the University of Alberta. A three dimensional (3D) DIC measurement method will be employed to determine the 3D deformation of the orthodontic brackets. The 3D DIC method will utilize two CCD cameras coupled with a stereo microscope and deformation of self-ligating orthodontic brackets of varying geometry will be compared using the 3D DIC method to demonstrate the 3D behavior of orthodontic brackets due to archwire rotation.
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication
Melenka G.W., Nobes, D.S., Major, P.W., Carey, J.P., Design of an Orthodontic Torque Simulator for Measurement of Orthodontic Bracket Deformation, Experimental Mechanics, EXME-D-12-01693 (2012).Melenka G.W., Nobes, D.S., Major, P.W., Carey, J.P., Three Dimensional Deformation of Orthodontic Brackets, Journal of Dental Biomechanics, JDB-12-0010 (2012).Melenka G.W, Nobes, D.S., Carey J. P., Three Dimensional Deformation of Orthodontic Brackets, (2012), Proceedings of the 2012 CSME International Congress

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