Chinese Journal of Mechanical Engineering >

2017 , Vol. 30 >Issue 6: 1406 - 1415

DOI: https://doi.org/10.1007/s10033-017-0142-0

ORIGINAL ARTICLE

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

  • Jin-Gang Jiang ,
  • Ying-Shuai Han ,
  • Yong-De Zhang ,
  • Yan-Jv Liu ,
  • Zhao Wang ,
  • Yi Liu
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  • 1 Robotics and Its Engineering Research Center, Harbin University of Science and Technology, Harbin 150080, China;
    2 Computing Center, Qiqihar University, Qiqihar 161000, China;
    3 Department of Orthodontics, Peking University Hospital of Stomatology, Beijing 100081, China

收稿日期: 2016-05-21

  修回日期: 2017-04-20

  网络出版日期: 2019-07-16

基金资助

Supported by National Natural Science Foundation of China (Grant Nos. 51205093, 61403222), China Postdoctoral Science Foundation (Grant No. 2016M591538), Heilongjiang Postdoctoral Science Foundation (Grant No. LBH-Z16091), and Science Funds for the Young Innovative Talents of Harbin University of Science and Technology (Grant No. 201509)

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

  • Jin-Gang Jiang ,
  • Ying-Shuai Han ,
  • Yong-De Zhang ,
  • Yan-Jv Liu ,
  • Zhao Wang ,
  • Yi Liu
Expand
  • 1 Robotics and Its Engineering Research Center, Harbin University of Science and Technology, Harbin 150080, China;
    2 Computing Center, Qiqihar University, Qiqihar 161000, China;
    3 Department of Orthodontics, Peking University Hospital of Stomatology, Beijing 100081, China

Received date: 2016-05-21

  Revised date: 2017-04-20

  Online published: 2019-07-16

Supported by

Supported by National Natural Science Foundation of China (Grant Nos. 51205093, 61403222), China Postdoctoral Science Foundation (Grant No. 2016M591538), Heilongjiang Postdoctoral Science Foundation (Grant No. LBH-Z16091), and Science Funds for the Young Innovative Talents of Harbin University of Science and Technology (Grant No. 201509)

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摘要

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.

关键词： Robotic bending; Rectangular orthodontic archwire; Springback mechanism; Stress-strain-neutral layer

本文引用格式

Jin-Gang Jiang , Ying-Shuai Han , Yong-De Zhang , Yan-Jv Liu , Zhao Wang , Yi Liu . Springback Mechanism Analysis and Experiments on Robotic Bending of Rectangular Orthodontic Archwire[J]. Chinese Journal of Mechanical Engineering, 2017 , 30(6) : 1406 -1415 . DOI: 10.1007/s10033-017-0142-0

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.

Key words： Robotic bending; Rectangular orthodontic archwire; Springback mechanism; Stress-strain-neutral layer

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