国际口腔医学杂志

国际口腔医学杂志 ›› 2022, Vol. 49 ›› Issue (2): 173-181.doi: 10.7518/gjkq.2022032

• 综述 • 上一篇    下一篇

弯曲前牙的影像评价及治疗的研究进展

叶泽林1(),刘璐2,龙虎2,游梦1()   

  1. 1.口腔疾病研究国家重点实验室 国家口腔疾病临床医学研究中心 四川大学华西口腔医院医学影像科 成都 610041
    2.口腔疾病研究国家重点实验室 国家口腔疾病临床医学研究中心 四川大学华西口腔医院正畸科 成都 610041
  • 收稿日期:2021-07-10 修回日期:2021-11-20 出版日期:2022-03-01 发布日期:2022-03-15
  • 通讯作者: 游梦
  • 作者简介:叶泽林,硕士,Email： yeahzelin@qq.com
  • 基金资助:
    四川省科技厅2020年度社会发展领域重点研发项目(2020YFS0045)

Research progress on imaging evaluation and treatment of anterior dilacerated teeth

Ye Zelin1(),Liu Lu2,Long Hu2,You Meng1()   

  1. 1. State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Oral Imaging, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
    2. State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
  • Received:2021-07-10 Revised:2021-11-20 Online:2022-03-01 Published:2022-03-15
  • Contact: Meng You
  • Supported by:
    Key Research and Development Projects in the Field of Social Development of the Sichuan Provincial Department of Science and Technology in 2020(2020YFS0045)

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摘要：

前牙弯曲牙是恒前牙发育过程时,乳牙受外伤的常见后遗症之一。特征为牙冠与牙根的线性关系改变,通常以影像学资料确诊。随着临床检查手段,特别是口腔锥形束CT的使用增加,病例检出随之增加,该疾病日益受到临床医生的重视,因此治疗理念、手段和方式上也有了新发展。不同程度的弯曲前牙,在治疗上也有着不同的处理方式,因人而异,因此需要准确评估。本文回顾了近年来前牙弯曲牙的病因、流行病学、治疗方式等的研究进展,并总结了影像学评价及诊断方法,期望对相关临床工作提供参考。

关键词: 弯曲牙, 前牙, 锥形束CT, 诊断, 外科治疗, 牵引治疗

Abstract:

Anterior dilaceration is one of the common sequelae after the dental trauma of primary teeth while the permanent anterior teeth are still growing. It is characterized by displacement of a tooth root from its normal alignment and diagnosed via radiographic data. With the improvement of examination methods, such as cone beam computed tomography, the disease has been detected more frequently and received increasing clinical attention. New thoughts and treatment methods have been reported. The treatment method depends on the degree of dilaceration, which varies among different individuals and requires accurate assessment. This article reviews the etiology, epidemiology, features, imaging evaluation, diagnostic methods, and treatment methods of anterior dilaceration to provide clinical reference.

Key words: dilaceration, anterior teeth, cone beam computed tomography, diagnosis, surgery, orthodontic traction

中图分类号: 

  • R816.98

图 1

锥形束CT（CBCT）显示未干预的弯曲牙的自然发展史 A：初诊发现未萌牙;B：2年后随访,牙齿进一步旋转,出现牙根弯曲。"

图 2

上颌恒中切牙在根尖片中的21牙“牛眼”征象"

图 3

全景片中可见11牙“牛眼”征象伴倒置阻生及21牙阻生"

图 4

对未治疗弯曲上颌切牙进行弯曲度评估及分类的方法 A：轻度弯曲（<60°）;B：中度弯曲（60°~100°）;C：重度弯曲（>100°）。"

图 5

利用CBCT测量牙根长度及牙冠角度的相关定点 A：弯曲牙正畸术前;B：同名牙正畸术前;C：弯曲牙正畸牵引术后,牙根形状弯曲;D：同名牙正畸术后。"

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