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

Huang Li; Xiuping Wu; Lan Huang; Xiaomei Xu; Na Kang; Xianglong Han; Yu Li; Ning Zhao; Lingyong Jiang; Xianju Xie; Jie Guo; Zhihua Li; Shuixue Mo; Chufeng Liu; Jiangtian Hu; Jiejun Shi; Meng Cao; Wei Hu; Yang Cao; Jinlin Song; Xuna Tang; Ding Bai

doi:10.7518/hxkq.2022.06.002

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

Hua Xi Kou Qiang Yi Xue Za Zhi. 2022 Dec 1;40(6):629-637. doi: 10.7518/hxkq.2022.06.002.

[Article in English, Chinese]

Authors

Huang Li¹, Xiuping Wu², Lan Huang³, Xiaomei Xu⁴, Na Kang⁵, Xianglong Han⁶, Yu Li⁶, Ning Zhao⁷, Lingyong Jiang⁸, Xianju Xie⁹, Jie Guo¹⁰, Zhihua Li¹¹, Shuixue Mo⁵, Chufeng Liu¹², Jiangtian Hu¹³, Jiejun Shi¹⁴, Meng Cao¹⁵, Wei Hu¹⁶, Yang Cao¹⁷, Jinlin Song³, Xuna Tang¹⁸, Ding Bai⁶

Affiliations

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.

Abstract
in English, Chinese

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.

根尖区牙根外吸收（EARR）是口腔正畸治疗中最常见的风险之一，难以预测，且不能完全避免。正畸EARR的风险因素目前尚不明确，一般可分为患者相关因素和治疗相关因素。正畸治疗中发生的EARR通常可在影像学检查时发现。轻、中度EARR通常无明显危害，可密切关注，谨慎正畸；若发生重度EARR，则建议先暂停正畸加力，观察3个月，等待牙骨质的修复。为进一步规范和提高临床医生对正畸EARR的认识，本文邀请了全国20余位口腔正畸及相关领域专家，基于文献分析与讨论，制定出此共识，为正畸临床提供参考。.

Keywords: experts’ consensus; external apical root resorption; orthodontic treatment.

MeSH terms

Consensus
Dental Cementum
Humans
Risk Factors
Root Resorption* / diagnostic imaging
Root Resorption* / etiology
Tooth Movement Techniques* / adverse effects

Grants and funding

[基金项目] 四川大学华西口腔医学院研究发展项目（LCY2019-2；RD-03-202108）；江苏省自然科学基金（SBK2021021787）；南京市卫生健康委员会专项资金重点项目（ZKX20048）

Abstract in English, Chinese

MeSH terms

Grants and funding

Abstract
in English, Chinese