[唇腭裂修复术后瘢痕与上颌扩弓联合前牵引对上颌骨发育综合影响的有限元分析]
[Finite element analysis of the comprehensive impact of scar and maxillary expansion combined with protraction on the development of maxilla with cleft lip and palate after repair operation].
作者信息
Huang Wei, Li Ying-Hui, Guo Kai-Li, Zhou Yong-Chuan, Li Xiang-Jun
机构信息
Dept. of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University & Hebei Key Laboratory of Stomatology, Shijiazhuang 050017, China.
Dept. of Orthodontics, School and Hospital of Stomatology, Hebei Medical University & Hebei Key Laboratory of Stomatology, Shijiazhuang 050017, China.
出版信息
Hua Xi Kou Qiang Yi Xue Za Zhi. 2020 Dec 1;38(6):642-646. doi: 10.7518/hxkq.2020.06.006.
OBJECTIVE
To study the comprehensive impact of scar and maxillary expansion combined with protraction on the development of maxilla with cleft lip and palate after repair operation.
METHODS
In the original finite element model of the maxilla with cleft palate, a finite element model of the maxilla with cleft lip and palate was established by using Boolean operation in ANSYS. Scar force after cleft lip and palate repair and maxillary expansion force combined with protraction were added simultaneously to process the stress analysis.
RESULTS
Maxillary deformation occurred in the three-dimensional direction. The comparison of displacements was as follows: X-axis>Z-axis>Y-axis.
CONCLUSIONS
Maxillary growth is significantly inhibited in the three-dimensional direction under the comprehensive impact of scar and maxillary expansion combined with protraction after repair operation, especially transverse and sagittal growth.
目的
研究瘢痕与上颌扩弓联合前牵引对唇腭裂修复术后上颌骨发育的综合影响。
方法
在原有的腭裂上颌骨有限元模型基础上，利用ANSYS软件中的布尔运算建立唇腭裂上颌骨有限元模型。同时施加唇腭裂修复术后瘢痕力和上颌扩弓联合前牵引力进行应力分析。
结果
上颌骨在三维方向上发生变形。位移比较结果如下：X轴>Z轴>Y轴。
结论
唇腭裂修复术后，在瘢痕与上颌扩弓联合前牵引的综合影响下，上颌骨在三维方向上的生长均受到显著抑制，尤其是横向和矢状向生长。
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