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Published in: Chinese Journal of Mechanical Engineering 6/2017

01-11-2017 | Original Article

Springback Mechanism Analysis and Experiments on Robotic Bending of Rectangular Orthodontic Archwire

Authors: Jin-Gang Jiang, Ying-Shuai Han, Yong-De Zhang, Yan-Jv Liu, Zhao Wang, Yi Liu

Published in: Chinese Journal of Mechanical Engineering | Issue 6/2017

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Abstract

Fixed-appliance technology is the most common and effective malocclusion orthodontic treatment method, and its key step is the bending of orthodontic archwire. The springback of archwire did not consider the movement of the stress-strain-neutral layer. To solve this problem, a springback calculation model for rectangular orthodontic archwire is proposed. A bending springback experiment is conducted using an orthodontic archwire bending springback measurement device. The springback experimental results show that the theoretical calculation results using the proposed model coincide better with the experimental testing results than when movement of the stress-strain-neutral layer was not considered. A bending experiment with rectangular orthodontic archwire is conducted using a robotic orthodontic archwire bending system. The patient expriment result show that the maximum and minimum error ratios of formed orthodontic archwire parameters are 22.46% and 10.23% without considering springback and are decreased to 11.35% and 6.13% using the proposed model. The proposed springback calculation model, which considers the movement of the stress-strain-neutral layer, greatly improves the orthodontic archwire bending precision.
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Metadata
Title
Springback Mechanism Analysis and Experiments on Robotic Bending of Rectangular Orthodontic Archwire
Authors
Jin-Gang Jiang
Ying-Shuai Han
Yong-De Zhang
Yan-Jv Liu
Zhao Wang
Yi Liu
Publication date
01-11-2017
Publisher
Chinese Mechanical Engineering Society
Published in
Chinese Journal of Mechanical Engineering / Issue 6/2017
Print ISSN: 1000-9345
Electronic ISSN: 2192-8258
DOI
https://doi.org/10.1007/s10033-017-0142-0

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