›› 2016, Vol. 36 ›› Issue (10): 917-919.

• 临床研究 • 上一篇    下一篇

成人骨性Ⅲ类患者不同垂直骨面型下颌联合形态的CBCT研究

王岩,边慧慧,郑颖,刘奕   

  1. 中国医科大学附属口腔医院
  • 收稿日期:2016-03-01 修回日期:2016-07-13 出版日期:2016-10-28 发布日期:2016-10-25
  • 通讯作者: 刘奕 E-mail:liuyi256@126.com
  • 基金资助:
    辽宁省教育厅科学研究一般项目

A CBCT study of symphysis morphology among Class Ⅲ malocclusion patients with different facial vertical skeletal patterns

  • Received:2016-03-01 Revised:2016-07-13 Online:2016-10-28 Published:2016-10-25

摘要: 目的:比较不同的垂直骨面型的成人骨性安氏Ⅲ类患者下颌联合形态差异。方法:成人Ⅲ类患者53例作为实验组,成人I类患者20例作为对照组。在CBCT上测量下中切牙-下颌平面角(IMPA)以及下颌联合高度(LH)和下切牙根尖处牙槽骨厚度(LA、LP),比较不同垂直骨面型Ⅲ类患者的下颌联合形态的差异。结果:在骨性安氏Ⅲ错合中,下颌联合高度(LH)与下颌平面角呈正相关,下中切牙-下颌平面角(IMPA)与下颌平面角呈负相关、与下切牙根尖处颊侧牙槽骨厚度呈正相关。结论:骨性安氏Ⅲ患者长面型的趋势导致下颌联合菲薄狭长,下前牙代偿性舌倾随着长面型的趋势加重,同时伴随其颊侧牙槽骨厚度减小。

关键词: 骨性Ⅲ类, 下颌联合形态, 下中切牙-下颌平面角, CBCT

Abstract: Objective To compare symphysis morphology among Class Ⅲmalocclusion patients with different facial vertical skeletal patterns. Methods Incisor mandibular plane angle (IMPA), symphysis height (LH) and the thickness of?alveolar bone among mandibular incisor area were measured in 73 CBCTs of adult patients. Results Variations in the mandibular plane have a negative correlation with IMPA and a positive correlation with LH, and IMPA has a positive correlation with the thickness of the buccal alveolar bone. Conclusions An increased trend of long-faced in Class III malocclusion led to variable-length of symphysis height,more lingual inclination of mandibular incisor,and decreasing thickness of the Buccal alveolar bone.

Key words: skeletal Class III malocclusion, symphysis morphology, Incisor mandibular plane angle, CBCT

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