Search
Skip to Search Results- 5Carey, Jason P.
- 5Heo, Giseon
- 5Major, Paul W.
- 3Melenka, Garrett W.
- 2Nobes, David S.
- 2Toogood, Roger W.
- 2Friction
- 1Archwire
- 1Archwire/Bracket Interaction
- 1Bracket
- 1Bracket deformation
- 1Conventional ligation
-
Comparison of Deformation and Torque Expression of the Orthos and Orthos Ti Bracket Systems
Download2011
Major, Paul W., Melenka, Garrett W., Carey, Jason P., Nobes, David S., Heo, Giseon, Lacoursiere, Ryan 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...
-
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...
-
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...
-
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...
-
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...