重庆医学2017，Vol.46Issue(25)：3536-3538,3541,4.DOI:10.3969/j.issn.1671-8348.2017.25.027
青少年骨性Ⅱ类颧牙槽嵴骨厚度的CBCT研究
Study on cone beam computed tomography for detecting bone thickness of skeletal class Ⅱ infrazygomatic crest in teenagers
郭丽娜 1刘玲 2袁小平1
作者信息
- 1. 西南医科大学附属口腔医院正畸科,四川泸州646000
- 2. 成都医学院第一附属医院口腔科,成都610000
- 折叠
摘要
Abstract
Objective To adopt the cone beam computed tomography(CBCT) to analyze the bone thickness of infrazygomatic crest with different vertical skeletal facial types in teenagers.Methods Sixty teenagers of skeletal class were collected,including each 20 cases of high angle,average angle and low angle.The CBCT scanning data of oral maxillofacial region were collected.The bone thickness at different coronary slices in buccal side of infrazygomatic crest region at 13,15,17 mm above the maxillary occlusal plane was measured.The measured data were analyzed statistically.Results The bone thickness of infrazygomatic crest was gradually thinned from down to up,and the difference was statistically significant(P＜0.05);the bone thickness(except 3 points at 13 mm from maxillary plane) at each measured point in the high,average and low angle groups showed the change trend of low angle ＞average angle＞high angle,the difference was not statistically significant(P＞0.05).Conclusion In teenagers,the bone thickness of infrazygomatic crest in skeletal class Ⅱ is gradually thinned from cranial direction and rearward,the high angle is thinnest and the low angle is thickest.关键词
骨性Ⅱ类/不同垂直骨面型/颧牙槽嵴骨厚度/微种植支抗Key words
skeletal class Ⅱ/different vertical facial types/infrazygomatic crest bone thickness/miniscrew implant anchorage分类
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郭丽娜,刘玲,袁小平..青少年骨性Ⅱ类颧牙槽嵴骨厚度的CBCT研究[J].重庆医学,2017,46(25):3536-3538,3541,4.
