矢向引导型Twin-block矫治器对安氏Ⅱ类上颌骨及磨牙的远移作用

上海口腔医学 ›› 2016, Vol. 25 ›› Issue (4): 456-460.

矢向引导型Twin-block矫治器对安氏Ⅱ类上颌骨及磨牙的远移作用

易颖煜, 赵宁, 沈刚

上海交通大学医学院附属第九人民医院·口腔医学院口腔正畸科,上海市口腔医学重点实验室,上海 200011

收稿日期:2015-11-16 出版日期:2016-08-25 发布日期:2016-09-06
通讯作者: 沈刚,E-mail：orthoshengang@gmail.com
作者简介:易颖煜（1988-）,女,硕士研究生,

Evaluation of the maxillary basal bone and molar change of skeletal Class Ⅱ malocclusion treated by sagittal-guidance Twin-block

YI Ying-yu, ZHAO Ning, SHEN Gang

Department of Orthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; Shanghai Key Laboratory of Stomatology. Shanghai 200011, China

Received:2015-11-16 Online:2016-08-25 Published:2016-09-06

摘要/Abstract

摘要： 目的探讨矢向引导型 Twin-block（SGTB）矫治器对生长发育期安氏Ⅱ类1分类患者的上颌骨及上颌磨牙的作用。方法选取34例利用SGTB矫治器进行矫形治疗的生长发育期安氏Ⅱ类1分类错畸形病例,二期正畸治疗未拔牙,采用Pancherz分析法定量研究治疗前、后上颌骨及上颌磨牙的后移量,利用SPSS20.0软件包评价其疗效。结果矫形治疗后,上颌磨牙显著后移（1.33 mm,P<0.01）,上颌骨位置显著向后（0.68 mm,P<0.01）;二期治疗结束后,上颌磨牙轻度后移（0.53 mm,P>0.05）,上颌骨位置显著后移（0.65 mm,P<0.05）。结论SGTB矫治器对安氏Ⅱ类1分类生长发育期错畸形患者能有效地发挥上颌磨牙远移及上颌骨后移作用。

关键词: Sagital-guidance Twin-block矫治器, Pancherz分析法, 安氏Ⅱ, 类1分类

Abstract: PURPOSE: To investigate the effects of sagittal-guidance Twin-block appliance on maxillary basal bone and buccal segment distalization in developing Angle Class Ⅱ division 1 malocclusion. METHODS: The measurement data of anterior-posterior direction and vertical dimension between pretherapy and post-treatment, including 34 developing Angle Class Ⅱ division 1 patients with sagittal-guidance Twin-block and non-extraction treatment, were quantitatively analyzed by X-ray cephalometry and Pancherz. SPSS 20.0 software package was used for statistical analysis. RESULTS: After orthopedic treatment, the maxilla significantly retruded (0.68 mm, P<0.01), the maxillary molars moved posteriorly (1.33 mm, P<0.01). After orthodontic treatment, the maxillary bone still turned out posteriorly (0.65 mm, P<0.05), and the molar teeth were slightly distalized (0.53 mm, P>0.05). CONCLUSIONS: The correction of developing Angle Class Ⅱ division 1 malocclusion can be achieved by sagittal-guidance Twin-block.

Key words: Sagittal-guidance Twin-block appliance, Pancherz analysis, Angle Class II division 1 malocclusion

中图分类号:

R783.5

易颖煜, 赵宁, 沈刚. 矢向引导型Twin-block矫治器对安氏Ⅱ类上颌骨及磨牙的远移作用[J]. 上海口腔医学, 2016, 25(4): 456-460.

YI Ying-yu, ZHAO Ning, SHEN Gang. Evaluation of the maxillary basal bone and molar change of skeletal Class Ⅱ malocclusion treated by sagittal-guidance Twin-block[J]. Shanghai Journal of Stomatology, 2016, 25(4): 456-460.

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