<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>In orthodontic treatment tooth root movement is essential, not only to ohtain mesio-distal paralleling of individual tooth roots, but also to achieve correct axial inclinations in relation to hasal bones and inter-incisal angles in the anterior segments. This article describes a pilot study in which paired teeth on opposite sides of the mouth and which required root paralleling as a part of orthodontic treatment, were subjected to known, moments of force. The forces were exerted using helical torsion springs of predetermined load-deflection characteristics. Average weekly moments of force were related to the weekly rates of angular movement of eight teeth in a group of four patients. The experiments lasted for up to seven weeks and were designed so that the movement of the paired teeth in each patient were concurrent.</p>
</abstract>

In orthodontic treatment tooth root movement is essential, not only to ohtain mesio-distal paralleling of individual tooth roots, but also to achieve correct axial inclinations in relation to hasal bones and inter-incisal angles in the anterior segments. This article describes a pilot study in which paired teeth on opposite sides of the mouth and which required root paralleling as a part of orthodontic treatment, were subjected to known, moments of force. The forces were exerted using helical torsion springs of predetermined load-deflection characteristics. Average weekly moments of force were related to the weekly rates of angular movement of eight teeth in a group of four patients. The experiments lasted for up to seven weeks and were designed so that the movement of the paired teeth in each patient were concurrent.

The Force Requirements for Tooth Movement Part II: Uprighting and Root Torque

Australasian Orthodontic Journal

This work is licensed under the Creative Commons Attribution 4.0 International License.

{"article-title":"The Force Requirements for Tooth Movement Part II: Uprighting and Root Torque"}

In orthodontic treatment tooth root movement is essential, not only to ohtain mesio-distal paralleling of individual tooth roots, but also to achieve correct...

The Force Requirements for Tooth Movement Part II: Uprighting and Root Torque

Published Online: Jan 17, 2024

Page range: 34 - 39

Received: Mar 01, 1995

Accepted: Jul 01, 1995

DOI: https://doi.org/10.2478/aoj-1995-0019

Keywords
movement, angular movement, phase of movement

© 1995 Brian W. Lee, published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

The Force Requirements for Tooth Movement Part II: Uprighting and Root Torque

Published Online: Jan 17, 2024

Page range: 34 - 39

Received: Mar 01, 1995

Accepted: Jul 01, 1995

DOI: https://doi.org/10.2478/aoj-1995-0019

Keywordsmovement, angular movement, phase of movement

© 1995 Brian W. Lee, published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
movement, angular movement, phase of movement