West China Journal of Stomatology ›› 2021, Vol. 39 ›› Issue (3): 362-367.doi: 10.7518/hxkq.2021.03.018

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Impacted molar upright with self-made helical spring

Xu Yanzhe(), Li Zhihua()   

  1. Dept. of Orthodontics, Affiliated Stomatology Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine, Nanchang 330006, China
  • Received:2020-03-23 Revised:2021-03-06 Online:2021-06-01 Published:2021-05-26
  • Contact: Li Zhihua E-mail:250510959@qq.com;lwlq323@163.com


With a case of mesial impaction of maxillary first and second molar, the mechanical analysis and clinical applications of a self-made helical spring for the uprighting treatment of mesial impacted molars was introduced.

Key words: helical spring, molar upright, impacted molar, mechanical analysis

CLC Number: