口腔医学研究

口腔医学研究 ›› 2017, Vol. 33 ›› Issue (7): 754-757.DOI: 10.13701/j.cnki.kqyxyj.2017.07.016

• 临床研究论著 • 上一篇    下一篇

上颌尖牙-侧切牙唇侧易位的分步牵引治疗

顾郁嘉, 张卫兵, 张玺, 于剑南, 王林, 赵春洋*   

  1. 南京医科大学口腔医学研究所,南京医科大学附属口腔医院正畸科 江苏 南京 210029
  • 收稿日期:2016-12-27 出版日期:2017-07-20 发布日期:2017-07-27
  • 通讯作者: 赵春洋,E-mail:zhaochunyang_orth@163.com
  • 作者简介:顾郁嘉(1992~ ),男,江苏常州人,硕士在读,医师,主要从事正畸学临床及研究工作。
  • 基金资助:
    国家自然科学基金面上项目(编号:81671019)江苏省临床医学专项(编号:BL2014073)江苏省高校优势学科建设工程资助项目(编号:2014-37)

Step-by-step Traction of Labial Transposition of Maxillary Canine and Lateral Incisor.

GU Yu-Jia, ZHANG Wei-Bing, ZHANG Xi, YU Jian-Nan, WANG Lin, ZHAO Chun-Yang   

  1. Institute of Stomatology, Department of Orthodontics, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210029, China.
  • Received:2016-12-27 Online:2017-07-20 Published:2017-07-27

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摘要： 目的:探讨应用锥形束CT(cone beam computed tomography ,CBCT)定位、诊断,指导上颌尖牙-侧切牙唇侧易位的分步牵引治疗。方法:选取在南京医科大学附属口腔医院正畸科矫治的上颌尖牙-侧切牙唇侧易位的青少年患者22例,计26颗尖牙,获取其治疗前的CBCT数据,根据其易位特征分为5类,并依据分类制定矫治方案,模拟矫治步骤与施力的方向,指导临床治疗。结果:19颗Ⅰ、Ⅱ、Ⅲ和部分Ⅳ类易位尖牙牵引复位,3颗Ⅳ、Ⅴ类易位尖牙牵引替代拔除的切牙,2颗Ⅳ类尖牙维持易位,2颗Ⅴ类尖牙被拔除。结论:CBCT辅助上颌唇侧易位尖牙分类,指导治疗方案的制定,提高治疗成功率。

关键词: 尖牙, 侧切牙, 易位, 分步牵引, CBCT

Abstract: Objective: To discuss cone beam computed tomography (CBCT) guided step-by-step traction of labial transposition of maxillary canine and lateral incisor. Methods: Twenty-two teenagers (26 canines) who visited Affiliated Stomatological Hospital of Nanjing Medical University for treatment of labial transposition of maxillary canine and lateral incisor were selected. CBCT was taken before treatment. Canines were divided into 5 groups and treatment was simulated. Results: Nineteen canines belonged to class Ⅰ, Ⅱ, Ⅲ and part of Ⅳ were successfully draged. Three canines belonged to class Ⅳ or class Ⅴ replaced the extracted incisors. Two canines belonged to class Ⅳ maintained the position, and 2 canine belonged to class Ⅴ canines were extracted. Conclusion: Classifying maxillary labial transposed canine with CBCT can guide the treatment plan, therefore improve the success rate of treatment.

Key words: Canine, Lateral , Incisor, Transposition, Step by step traction, CBCT

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