上海口腔医学

上海口腔医学 ›› 2016, Vol. 25 ›› Issue (1): 68-71.

• 论著 • 上一篇    下一篇

安氏Ⅱ类1分类和2分类错畸形患者上中切牙区牙槽骨的三维形态分析

夏文倩，顾永佳，高美琴   

  1. 南通市口腔医院 正畸科，江苏 南通 226001
  • 收稿日期:2015-10-23 修回日期:2015-11-12 出版日期:2016-02-25 发布日期:2016-03-09
  • 通讯作者: 高美琴，E-mail:ntgmq@126.com E-mail:179373411@qq.com
  • 作者简介:夏文倩（1985-），硕士，主治医师
  • 基金资助:
    南通市社会事业科技创新与示范课题 (HS2013033)

Morphological characteristics of upper alveolar bone around central incisor in Class Ⅱ division 1 and division 2 malocclusion on cone-beam CT

XIA Wen-qian, GU Yong-jia, GAO Mei-qin.   

  1. Department of Orthodontics, Stomatology Hospital of Nantong City. Nanjing 226001, Jiangsu Province, China
  • Received:2015-10-23 Revised:2015-11-12 Online:2016-02-25 Published:2016-03-09

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摘要： 目的： 应用锥形束CT(cone-beam computed tomography, CBCT)三维成像测量正常及安氏Ⅱ类1分类和2分类错畸形患者上切牙区牙槽骨形态，分析其三维结构以及与牙根的关系，评价其对正畸计划制订及治疗的影响。方法： 选取20例正常患者、20例安氏Ⅱ类1分类和20例安氏Ⅱ类2分类错畸形患者，拍摄治疗前 CBCT 影像，通过 INVIVO 5.0 图像处理软件对图像进行三维重建，测量上切牙唇腭侧的牙槽骨厚度。利用SPSS19.0软件包对数据进行配对t检验。结果： 除安氏Ⅱ类2分类腭侧根尖牙槽骨厚度与正常相比无显著差异外，其他各组数据之间均有显著差异。结论： 正畸治疗中应综合考虑牙位置与牙槽骨形态的相互关系，不可过度依赖牙移动来代偿骨性不调,避免不恰当的牙移动导致牙根吸收、牙槽骨附着降低、骨开窗、骨穿孔等不良反应。

关键词: 安氏Ⅱ类1分类, 安氏Ⅱ类2分类, 锥形束CT, 上前牙区牙槽骨厚度

Abstract: PURPOSE: During orthodontic treatment, the incisors in patients with Class Ⅱ division 1 and division 2 malocclusion showed different clinical features, which determine the different ways to move the teeth to the suitable position. This study analyzed the morphology of alveolar bone around upper central incisor with cone-beam CT (CBCT). METHODS： The sample consisted of 20 normal malocclusion and 40 patients with Class Ⅱ malocclusion （division 1 20 cases and division 2 20 cases）. CBCT images before orthodontic treatment were reconstructed by INVIVO 5.0 image processing software. Paired t test was used for statistical analysis with SPSS 19.0 software package. RESULTS: At the upper central incisors, the alveolar thickness between normal malocclusion and Class Ⅱ division 1 and division 2 malocclusion had significant difference except the palate thickness between normal malocclusion and Class Ⅱ division 2 malocclusion (P<0.05). CONCLUSIONS: Orthodontist should consider the relationship between the teeth position and alveolar bone shape comprehensively, choose the correct plan in order to avoid root desorption, alveolar bone loss, fenestration and other adverse reactions.

Key words: Class Ⅱ division 1 malocclusion, Class Ⅱ division 2 malocclusion, Cone-beam CT, Alveolar bone thickness of upper anterior teeth

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