骨性Ⅲ类错▉畸形患者双颌手术后软、硬组织的变化

doi:10.19438/j.cjoms.2017.06.009

摘要/Abstract

摘要： 目的探讨骨性Ⅲ类错▉畸形患者双颌手术后软、硬组织变化的相关性、软组织厚度与软硬组织变化的相关性及软组织厚度的变化,以更好地预测术后软组织侧貌。方法对26例骨性Ⅲ类错▉畸形成人患者进行锥形束CT（CBCT）扫描,用InVivo5软件将CBCT转化成头颅侧位片（cephalogram from CBCT, CCB）,导入“几何画板”并建立坐标系,进行定点测量。采用SPSS17.0软件包对所有测量值进行统计学分析。结果各软、硬组织标志点存在线性相关关系,下颌比上颌相关性强。Sn∶A=0.18∶1,UL∶Ui=0.31∶1,LL∶Li=0.80∶1,Si∶B=0.84∶1,Pg'∶Pg=0.90∶1。鼻底厚度、颏部厚度与相应软、硬组织变化无相关关系。唇部厚度与软、硬组织变化呈负相关关系。术后上唇变薄,下唇变厚。结论软、硬组织变化呈线性相关关系,下颌软、硬组织位移比率大于上颌。鼻底及颏部软组织受硬组织移动影响小,唇部变化受硬组织影响大;唇部越薄,随硬组织移动性越好。

关键词: 骨性Ⅲ类错▉, 畸形, 软硬组织相关性, 软组织厚度, 锥形束CT, 头颅侧位片

Abstract: PURPOSE: To investigate the changes of soft and hard tissue after bimaxillary surgery in osseous Class Ⅲ patients, in order to predict postoperative soft tissue profiles. METHODS: Twenty-six adults patients were selected as the experimental group, cone-beam CT (CBCT) scans were conducted. InVivo 5 software was used to transform CBCT into cephalogram from CBCT(CCB) which were imported into the software named Geometer's Sketchpad. All points were measured in the system of rectangular coordinates and were used for statistical analysis SPSS17.0 software package. RESULTS: There was a linear relationship between soft and hard tissue. The correlation in mandible was stronger than that in maxilla, Sn:A=0.18:1, UL:Ui=0.31:1, LL:Li=0.80:1,Si:B=0.84:1,Pg':Pg=0.90:1. There was no correlation between the thickness of nasal floor and the changes of the soft and hard tissue. The same was the thickness of chin. There was negative correlation in the thickness of lip with the soft and hard tissue changes. The upper lip became thinner, the lower lip became thicker. CONCLUSIONS: There was a linear correlation between the hard tissue and the soft tissue. The correlation and ratio of mandible was stronger than maxilla. Changes of hard tissue had major effects on the soft tissue of nasal floor and chin, but minor effects on lip. There was better mobility in thinner upper lip than thicker lip.

Key words: Osseous Class Ⅲ, malocclusion deformity, Hard and soft tissue correlation, Thickness of soft tissue, Cone-beam CT, Cephalogram

中图分类号:

R782.2

胡兆妮, 曲卫国, 李阳, 裘罡, 王吉, 岳柏. 骨性Ⅲ类错▉畸形患者双颌手术后软、硬组织的变化[J]. 中国口腔颌面外科杂志, 2017, 15(6): 524-528.

HU Zhao-ni, QU Wei-guo, LI Yang, QIU Gang, WANG Ji, YUE Bai. Soft and hard tissue changes after bimaxillary surgery in osseous class Ⅲ patients[J]. China J Oral Maxillofac Surg, 2017, 15(6): 524-528.

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