Abstract

Biomechanics of Orthodontic Tooth Movement when Using Temporary Anchorage Devices – Fixed Appliances Versus Aligners

by Anka George and Yoshida Noriaki

No matter what appliance or mechanics is used, either fixed appliance or aligner will face problems of the bowing effect or bite deepening of the anterior bite, especially in extraction cases; issues such as tipping happen instead of bodily movement. Orthodontists have been searching for treatment mechanisms that allow for predictable and controllable space closure for years. Relocating anterior teeth to their final target destinations is especially important in dealing with extraction cases. In doing efficient tooth movement and reduced treatment time, we looked for the shortest paths possible in moving teeth. Optimal therapeutic efficiency is achieved by predicting and planning orthodontic tooth movement. Our simulation system is designed to predict orthodontic tooth movement. It is a system that could determine the optimal load, resulting in the rapid and controlled movement of anterior teeth during orthodontic treatment. The presentation is about the biomechanical considerations that can be used to maximize therapeutic efficiency and minimize side effects during orthodontic treatment using fixed appliances and aligners combined with temporary anchorage devices. The method is about treatment strategies that achieve predictable and controllable tooth movement. Dr. Anka will show an effective method that can be used in daily clinical orthodontic dealing with extraction cases using the fixed appliance. The technique consists in doing a root canal treatment of the tooth or teeth provided for extraction. Presenters will discuss the rationale behind the treatment method.

Learning Objectives

After this lecture, you will be able to learn how to prevent the bowing effect and deepening of the anterior overbite during space closure when using fixed orthodontics or aligners in extraction cases.
After this lecture, you will be able to learn how to apply the optimal force to each tooth and to understand how to achieve efficient tooth movement with fixed appliances and aligners with TADs.
After this lecture, you will be able to teach the application of root canal treatment for the intended extraction and comprehend the optimal timing for extracting teeth in extraction cases.