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Permanent link (DOI): https://doi.org/10.7939/R3610W540

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Measurement of orthodontic bracket tie wing elastic and plastic deformation by arch wire torque expression utilizing an optical image correlation technique Open Access

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Author or creator
Lacoursiere, Ryan A.
Nobes, David S.
Homeniuk, Darren L.N.
Carey, Jason P.
Badawi, Hisham H.
Major, Paul W.
Additional contributors
Subject/Keyword
Orthodontic brackets
Treatment biomechanics
Torque
Type of item
Journal Article (Published)
Language
English
Place
Time
Description
Orthodontic lingual root movement (torque) is an important aspect of treatment biomechanics and is typically achieved by torsion of a rectangular wire within the orthodontic bracket slot which introduces a force couple. The magnitude of the force moment achieved by wire torsion may be influenced by deformation of the orthodontic bracket. A device utilizing an optical image correlation technique has been developed to accurately quantify bracket slot dimensional changes during application of wire torsion. Simultaneous torque moment magnitude, degrees of wire twist, and bracket slot dimension data can be gathered. Bracket tie wing elastic deformation when loaded was demonstrated and plastic deformation was also observed with a single rotation of the wire.
Date created
2010
DOI
doi:10.7939/R3610W540
License information
Attribution-NonCommerical-NoDerivs 3.0 Unported
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Citation for previous publication
Lacoursiere, R., Nobes, D., Homeniuk, D., Carey, J., Badawi, H., and Major, P. (2010). Measurement of orthodontic bracket tie wing elastic and plastic deformation by arch wire torque expression utilizing an optical image correlation technique. Journal of Dental Biomechanics, 1(1), 397037.
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File author: Ryan A. Lacoursiere {et al.}
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