口腔医学研究

口腔医学研究 ›› 2021, Vol. 37 ›› Issue (3): 227-231.DOI: 10.13701/j.cnki.kqyxyj.2021.03.010

• 口腔正畸学研究 • 上一篇    下一篇

安氏Ⅱ1类患者双期矫治期间垂直向变化的研究

徐若君1,2, 马琴琴2, 樊雪敏1,2, 莫水学2*   

  1. 1.广西医科大学,广西口腔颌面修复与重建研究自治区级重点实验室,广西颅颌面畸形临床医学研究中心, 颌面外科疾病诊治研究重点实验室 广西 南宁 530021;
    2.广西医科大学附属口腔医院正畸科 广西 南宁 530021
  • 收稿日期:2020-10-09 发布日期:2021-03-19
  • 通讯作者: *莫水学,E-mail:msx0226@163.com
  • 作者简介:徐若君(1992~ ),女,四川泸州人,硕士在读,研究方向:牙颌畸形的诊治。
  • 基金资助:
    国家自然科学基金(编号:81560188);广西高校中青年教师科研基础能力提升项目(合同编号:2021KY0110);南宁市青秀区科技计划项目(合同编号:2020027)

A Retrospective Study on Vertical Change during Two-phase Treatment for Class Ⅱ Division 1 Malocclusions

XU Ruojun1,2, MA Qinqin2, FAN Xuemin1,2, MO Shuixue2*   

  1. 1. Guangxi Medical University, Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Diseases, Nanning 530021, China;
    2. Department of Orthodontics, Stomatological Hospital, Guangxi Medical University, Nanning 530021, China
  • Received:2020-10-09 Published:2021-03-19

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摘要： 目的:分析安氏Ⅱ1类患者双期矫治期间垂直向的变化,初步探讨Twin-block(TB)功能矫治垂直向控制的方法。方法:回顾性研究20例采用TB功能矫治联合固定矫治进行双期治疗的安氏Ⅱ1类患者,测量并分析每阶段治疗前后的头颅侧位片。结果:Ⅰ期矫治前后SN-OP、SN-FOP、IMPA、UADH、UPDH、LADH、LPDH增大,U1-SN减小(P<0.05);Ⅱ期矫治前后FHI、U6-SN、UPDH增大,SN-MP、SN-FOP减小(P<0.05);双期矫治前后FHI增大(P<0.05),其余垂直向骨性特征无明显变化(P>0.05);治疗期间垂直向骨性特征的改变与咬合平面及牙槽高度的变化呈现一定相关性。结论:TB功能矫治后未发生垂直向的不利改变;功能矫治期间垂直向控制的关键可能是咬合平面的变化,特别是上前牙高度的变化。

关键词: 安氏Ⅱ1类错牙合畸形, Twin-block矫治器, 垂直向

Abstract: Objective: To evaluate the changes of vertical dimension in class Ⅱ1 malocclusions during two-phase treatment and explore the method of vertical control with Twin-block functional orthopedic treatments preliminarily. Methods: The treatment changes were evaluated by retrospectively analyzing the Pre- and posttreatment's lateral cephalograms of 20 adolescents with class Ⅱ1 malocclusions who were treated with Twin-block functional orthopedic treatments and fixed orthodontic treatment for two-phase treatment. Results: SN-OP, SN-FOP, IMPA, UADH, UPDH, LADH, and LPDH increased, while U1-SN decreased during phase-I treatment (P<0.05). FHI, U6-SN, and UPDH increased while SN-MP and SN-FOP decreased during phase-Ⅱ treatment (P<0.05). FHI, SN-OP, MPA, UADH, UPDH, LADH, and LPDH increased while SN-FOP, U1-SN, and U6-SN decreased after two-phase treatment (P<0.05). The changes of skeletal indexes had a certain degree of correlation with the changes of dental and occlusal indexes in vertical dimension. Conclusion: There was no evidence of adverse vertical change caused by functional orthopedic treatments with Twin-block appliance. The key to vertical control in functional orthopedic treatments may be the occlusal plane, especially UADH.

Key words: Class Ⅱ division 1 malocclusions, Twin-block appliance, vertical dimension