West China Journal of Stomatology ›› 2022, Vol. 40 ›› Issue (6): 629-637.doi: 10.7518/hxkq.2022.06.002

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External apical root resorption in orthodontic tooth movement: the risk factors and clinical suggestions from experts’ consensus

Li Huang1(), Wu Xiuping2, Huang Lan3, Xu Xiaomei4, Kang Na5, Han Xianglong6, Li Yu6, Zhao Ning7, Jiang Lingyong8, Xie Xianju9, Guo Jie10, Li Zhihua11, Mo Shuixue5, Liu Chufeng12, Hu Jiangtian13, Shi Jiejun14, Cao Meng15, Hu Wei16, Cao Yang17, Song Jinlin3, Tang Xuna18, Bai Ding6()   

  1. 1.Dept. of Orthodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210009, China
    2.Dept. of Orthodontics, Stomatological School of Shanxi Medical University, Taiyuan 030001, China
    3.Dept. of Orthodontics, Stomatological School of Chongqing Medical University, Chongqing 400016, China
    4.Dept. of Orthodontics, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China
    5.Dept. of Orthodontics, College of Stomatology, Guangxi Medical University, Nanning 530021, China
    6.State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Orthodontics, West China Hospital of Stomatology, Si-chuan University, Chengdu 610041, China
    7.Dept. of Orthodontics, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
    8.Dept. of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
    9.Dept. of Orthodontics, Beijing Stomatological Hospital, Capital Medical School, Beijing 100050, China
    10.Dept. of Orthodontics, School of Stomatology, Shandong University, Jinan 250012, China
    11.Dept. of Orthodontics, Affiliated Stomatological Hospital of Nanchang University, Nanchang 330006, China
    12.Dept. of Orthodontics, Stomatological Hospital of Southern Medical University, Guangzhou 510280, China
    13.Dept. of Orthodontics, Stomatological School of Kunming Medical University, Kunming 650504, China
    14.Dept. of Orthodontics, Stomatological Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
    15.Dept. of Orthodontics, Stomatological School of Airforce Military Medical University, Xi’an 710032, China
    16.Dept. of Orthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Disea-ses & National Engineering Research Center for Oral Biomaterials and Digital Diagnostic Equipment, Beijing 100081, China
    17.Dept. of Orthodontics, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
    18.Dept. of Specialist Clinic, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210009, China
  • Received:2022-06-27 Revised:2022-07-22 Online:2022-12-01 Published:2022-11-23
  • Contact: Bai Ding E-mail:lihuang76@nju.edu.cn;baiding@scu.edu.cn
  • Supported by:
    Reserach and Development Program of West China Hospital of Stomatology(LCY2019-2);Natural Science Foundation of Jiangsu(SBK2021021787);Key Project of Nanjing Municipal Health Commission(ZKX20048);Correspondence: Bai Ding, E-mail: baiding@scu.edu.cn

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Abstract:

External apical root resorption is among the most common risks of orthodontic treatment, and it cannot be completely avoided and predicted. Risk factors causing orthodontic root resorption can generally be divided into patient- and treatment-related factors. Root resorption that occurs during orthodontic treatment is usually detected by radiographical examination. Mild or moderate root absorption usually does no obvious harm, but close attention is required. When severe root resorption occurs, it is generally recommended to suspend the treatment for 3 months for the cementum to be restored. To unify the risk factors of orthodontic root resorption and its clinical suggestions, we summarized the theoretical knowledge and clinical experience of more than 20 authoritative experts in orthodontics and related fields in China. After discussion and summarization, this consensus was made to provide reference for orthodontic clinical practice.

Key words: external apical root resorption, orthodontic treatment, experts’ consensus

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