野双峰驼下颌骨的三维重建及其受力时应力分布的三维有限元分析

In this paper, we selected five wild camels mandible and did spiral CT scan, then, using software Amira3.1.1 we did the three-dimensional reconstruction of the mandible in the wild bactrian camels, and acquired 3D point cloud of the mandible in the wild bactrian camels. Geomagic software could make a three-dimensional point cloud become solid model, and the solid model could be saved as file which can be opened in the finite element analysis software. And in the finite element analysis software Ansys14.0, we applied the force of 1000N on the mandibular angle, and acquired: When force was applied on the right side of mandibular angle in 90 angle, the side of mandibular angle and condylar neck were easily fractured. The inside surface of central symphysis and the right of mental foramen of mandible may show fissures, while the other was slightly damaged. When force was applied on the left side of inferior border of mandibular angle in 90 angle, we could acquire simple result. It is revealed that, while forces were applied on the mandibular angle, Von Mises stress mainly concentrated on the weak parts of mandible, which provides theoretical basis for preliminary clinical diagnosis and treatment of mandibular fractures. More in-depth understanding of the wild bactrian camels mandible, and provided a basis for the subsequent three-dimensional reconstruction applications in the field.