Evaluation of the pattern of the skeletal deviation by the simulation of bone remodeling.

从骨性偏牙合患者的CT图像中获取颅骨和咀嚼肌。使用CT图像构建颅骨的有限元模型，然后根据肌肉的方向和横截面积设置载荷条件。结果，该模型显示了偏斜颅骨中的不平衡应力分布。然后，为了阐明对称面部咀嚼力不平衡的影响，使用原始偏斜头骨创建了双侧对称面部。对称模型也表现出应力分布的不平衡，而且在某些区域，不平衡程度比原模型更明显。本研究结果显示，咀嚼时上下颚应力分布的不对称性，可能是造成骨性偏牙合的一个重要因素。

The skull and masticatory muscles were taken from the CT images of patients with skeletal deviated occlusion. The finite element models of the skull were constructed using CT images, and then the loading conditions were set depending on the direction and cross sectional area of the muscles. As a result, the model showed imbalanced stress distribution in the deviated skull. Then, to elucidate the effects of the imbalanced masticatory force in the symmetrical face, a bilateral symmetrical face was created using the original deviated skull. The symmetrical model also showed imbalanced stress distribution, furthermore, in some regions, the level of imbalance was more obvious than in the original model. The results of this study suggest that asymmetric stress distribution in both the maxilla and mandible during mastication appears to be one of the exacerbating factors with regard to skeletal deviated occlusion.