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Skip to Search Results- 18Major, Paul W.
- 15Carey, Jason P.
- 8Nobes, David S.
- 7Melenka, Garrett W.
- 6Toogood, Roger W.
- 5Heo, Giseon
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Replication of Landmarked Orthodontic Bracket Positions from Patient Intraoral Scans onto Laboratory Orthodontic Simulator
Download2022-06-01
Subramanian, Arya, de Wet, Robyn, Lagravere, Manuel O., Major, Paul W., Romanyk, Dan L.
Conference abstract. Part of the Proceedings of the Canadian Society for Mechanical Engineering International Congress 2022.
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2015
Heo, Giseon, Major, Paul W., Melenka, Garrett W., Carey, Jason P., Romanyk, Dan R., Toogood, Roger W., Fathimani, Maryam
Background The primary objective of this study was to develop a computer-controlled three-dimensional friction measuring system, the orthodontic friction simulator (OFS). A clinically-based in vitro experiment considering wet and dry friction for conventionally and self-ligated brackets is...
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Investigation into the effects of stainless steel ligature ties on the mechanical characteristics of conventional and self-ligated brackets subjected to torque
Download2014
Heo, Giseon, Nobes, David S., Al Fakir, Hussam, Major, Paul W., Melenka, Garrett W., Carey, Jason P.
Objective: Torque is applied to orthodontic brackets in order to alter the buccal-lingual angulation of a tooth. One factor that can affect torque is the ligation mode used to retain the archwire in the bracket slot. The objective of this study was to investigate the effects of stainless steel...
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Effect of Ligation Method on Maxillary Arch Force / Moment Systems for a Simulated Lingual Incisor Malalignment
Download2014
Romanyk, Dan L., Major, Paul W., Seru, Surbhi, Toogood, Roger W., Carey, Jason P.
Introduction: The objectives of this study were to determine whether there is a difference in the magnitude of forces and moments produced by elastic ligation when compared to passive ligation, and whether these forces and moments propagate differently along the arch for the two ligation types. A...
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Measurement Accuracy and Reliability of Tooth Length on Conventional and CBCT Reconstructed Panoramic Radiographs
Download2014
Flores-Mir, Carlos, Carey, Jason P., Rosenblatt, Mark R., Major, Paul W., Heo, Giseon
Introduction: This in vivo study assessed accuracy and reliability of tooth length measurements obtained from conventional panoramic radiographs and CBCT panoramic reconstructions to that of a digital caliper (gold standard). Methods: The sample consisted of subjects who had CBCT and conventional...
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The effect of perturbations on resistance to sliding in second order moments comparing two different bracket types
Download2014
Wong, Justin W., Carey, Jason P., Romanyk, Dan L., Heo, Giseon, Toogood, Roger W., Major, Paul W.
Orthodontic literature has shown all ligation methods to behave similarly in the clinical situation; however, the reasoning behind this still requires further investigation. A novel frictional device able to measure forces at the level of the bracket along with a custom perturbation device was...
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2013
Nobes, David S., Major, Paul W., Melenka, Garrett W., Carey, Jason P.
Braces are used by orthodontists to correct the misalignment of teeth in the mouth. Archwire rotation is a particular procedure used to correct tooth inclination. Wire rotation can result in deformation to the orthodontic brackets, and an orthodontic torque simulator has been designed to examine...
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2013
Carey, Jason P., Melenka, Garrett W., Nobes, David S., Major, Paul W.
Archwire rotation is used in orthodontic treatment to alter the labiolingual orientation of a tooth. Measurement of the 3-dimensional (3D) motion of the orthodontic brackets requires a new configuration of the orthodontic torque simulator. The orthodontic torque simulator was coupled with a...
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2013
Major, Paul W., Melenka, Garrett W., Nobes, David S., Carey, Jason P.
The design and testing of an orthodontic torque simulator that reproduces the effect of archwire rotation on orthodontic brackets is described. This unique device is capable of simultaneously measuring the deformation and loads applied to an orthodontic bracket due to archwire rotation. Archwire...
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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 deformation
Download2011
Nobes, David S., Major, Paul W., Melenka, Garrett W., Major, Thomas, Carey, Jason P.
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...