唇裂术后上唇压力对上颌骨发育影响的有限元分析  

A finite element study of the influence of upper lip pressure on the development of maxilla after cleft lip surgery

作　　者：黄威 郭凯利 张晓燕 冯莹 冯晓伟[1] 李向军[1] HUANG Wei;GUO Kai-li;ZHANG Xiao-yan;FENG Ying;FENG Xiao-wei;LI Xiang-jun(Department of Oral and Maxillofacial Surgery,School and Hospital of Stomatology,Hebei Medical University,Hebei Key Laboratory of Stomatology,Hebei Clinical Research Center for Oral Disease.Shjiazhuang 050017,Hebei Province,China)

机构地区：[1]河北医科大学口腔医学院·口腔医院,口腔颌面外科,河北省口腔医学重点实验室,河北省口腔疾病临床医学研究中心,河北石家庄050017

出　　处：《上海口腔医学》2021年第3期243-246,共4页Shanghai Journal of Stomatology

基　　金：河北省医学科学研究课题计划(20190097)。

摘　　要：目的:探讨唇裂术后上唇压力对上颌骨的影响及抑制机制。方法:利用ANSYS17.0软件在腭裂上颌骨有限元模型上添加上唇软组织,赋予材料属性,形成含上唇的唇腭裂上颌骨三维有限元模型,对模型分组,施加上唇压力并进行受力分析。试验组:施加唇裂术后上唇压力,对照组:施加同龄正常儿童上唇压力。结果:试验组形变值大于对照组,在三维方向上上颌骨形变以Z轴为主,X轴、Y轴次之。牙槽突前段形变最明显,由前向后形变趋势逐渐减小。结论:上颌骨在三维方向上均有生长抑制,其中以矢状向生长抑制为主,横向及垂直向生长抑制次之,由前向后抑制程度.逐渐降低。PURPOSE: To explore the mechanism of upper lip pressure on maxilla after cleft lip surgery. METHODS:ANSYS 17.0 software was used to add the upper lip soft tissue to the finite element model of maxilla with cleft palate, and the material properties was assigned to form a three-dimensional finite element model of maxilla with upper lip. The upper lip pressure was applied to the model and force analysis was performed in 2 groups. In the experimental group, upper lip pressure with cleft lip surgery was applied;in the control group, upper lip pressure in normal children of the same age was applied. RESULTS: Maxillary deformation in the experimental group was greater than that in the control group. Maxillary deformation occurred in three-dimensional direction, which was mainly in Z axis, followed by X axis and Y axis. The ante-rior segment of alveolar process was the most obvious,and from the anterior to the posterior, the change trend was gradually decreased. CONCLUSIONS: Maxillary growth is inhibited in three-dimensional direction,which is mainly sagittal growth inhibition,followed by transverse and vertical growth. The inhibition gradually decreases from anterior to posterior.

关 键 词：上唇压力 上颌骨发育 三维有限元 唇腭裂 

分 类 号：R782.2[医药卫生—口腔医学]