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- 3Carey, Jason P.
- 3Lacoursiere, Ryan A.
- 3Major, Paul W.
- 3Nobes, David S.
- 2Melenka, Garrett W.
- 1Al Fakir, Hussam
- 4Graduate Studies and Research, Faculty of
- 4Graduate Studies and Research, Faculty of/Theses and Dissertations
- 3Mechanical Engineering, Department of
- 3Mechanical Engineering, Department of/Journal Articles (Mechanical Engineering)
- 1WISEST Summer Research Program
- 1WISEST Summer Research Program/WISEST Research Posters
An investigation into the mechanical characteristics of select self-ligated brackets at a series of clinically relevant maximum torquing angles: Loading and unloading curves and bracket deformationDownload
Edgewise orthodontic treatment utilizes a force couple in order to achieve labial–lingual tooth angulation. Two self-ligating brackets (Damon Q and Speed) were examined across a range of clinically relevant torques in order to assess the loading and unloading curves and bracket deformation. A...
Orthodontic torque expression is the result of axial rotation of rectangular archwires within a rectangular bracket slot. This study investigates the effect of bracket material on torque expression. Torque exerted by a rotating archwire on each bracket will be measured as well as the relative...
Effect of low intensity pulsed ultrasound on orthodontically induced root resorption caused by torque: A prospective double blinded controlled clinical trialDownload
Orthodontically induced root resorption (OIIRR) is an undesirable consequence of orthodontic treatment and may lead to permanent loss of root structure. A previous clinical trial demonstrated the effect of LIPUS on tipping type of OTM and reported that LIPUS can promote cementogenesis. However,...
Measurement of orthodontic bracket tie wing elastic and plastic deformation by arch wire torque expression utilizing an optical image correlation techniqueDownload
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...
The objective of this thesis was to identify differences in torque expression between three brands of metallic self-ligating brackets with stainless steel, TMA® and CuNiTi® wire and to compare active and passive designs. 150 of each Damon-3MX (Ormco Inc, Orange, CA, USA), SPEED (Strite...
The effects of stainless steel ligature ties on the mechanical characteristics of conventional and self-ligated brackets subjected to torqueDownload
Stainless steel ligatures ties are routinely used by orthodontists to improve torque; nevertheless, there is a lack of evidence as to the role of stainless steel ligation in bracket retentive characteristics. The objective of this study is to look into the effects of stainless steel (SS) ligation...
Deformation of the orthodontic bracket upon wire engagement may result in torque dissipation within the bracket rather than transmission to the tooth and its supporting structures. The purpose of this study was: 1) quantify the amount of torque expression and 2) quantify any deformation as a...