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

<p>Specific data on the relation between force and tooth movement is essential not only to facilitate non-traumiatic orthodontic treatment but also to establish a sound basis for appliance design. Whilst the broad approaches to orthodontic tooth movement appear to be the application of tipping and/or bodily movement, no scientific comparison between these two types of movement has yet been made. This article describes experiments which repeat investigations of Storey and Smith into the relation between the force applied 238 and the rate of tipping movement and their extension to include bodily movement. Twenty adolescent male patients requiring distal movement of upper cuspid teeth as a part of orthodontic treatment were each fitted with calibrated cuspid retraction springs. The appliances were designed to induce bodily movement on one side of the mouth concurrently with tipping movement on the other, Initial force applications were identical, and the experiments lasted for up to eleven weeks following one activation of the retraction springs. The results of these experiments were compared with those of other workers, and an explanation of the causes of the past controversy regarding various theories of tooth movement is offered.</p>
</abstract>

Specific data on the relation between force and tooth movement is essential not only to facilitate non-traumiatic orthodontic treatment but also to establish a sound basis for appliance design. Whilst the broad approaches to orthodontic tooth movement appear to be the application of tipping and/or bodily movement, no scientific comparison between these two types of movement has yet been made. This article describes experiments which repeat investigations of Storey and Smith into the relation between the force applied 238 and the rate of tipping movement and their extension to include bodily movement. Twenty adolescent male patients requiring distal movement of upper cuspid teeth as a part of orthodontic treatment were each fitted with calibrated cuspid retraction springs. The appliances were designed to induce bodily movement on one side of the mouth concurrently with tipping movement on the other, Initial force applications were identical, and the experiments lasted for up to eleven weeks following one activation of the retraction springs. The results of these experiments were compared with those of other workers, and an explanation of the causes of the past controversy regarding various theories of tooth movement is offered.

The Force Requirements for Tooth Movement Part I: Tipping and Bodily Movement

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 I: Tipping and Bodily Movement"}

Specific data on the relation between force and tooth movement is essential not only to facilitate non-traumiatic orthodontic treatment but also to establish a...

The Force Requirements for Tooth Movement Part I: Tipping and Bodily Movement

Published Online: Jan 17, 2024

Page range: 238 - 248

Received: Mar 01, 1994

DOI: https://doi.org/10.2478/aoj-1995-0004

© 1995 Brian W. Lee, published by Sciendo

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