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颏兜力作用下颞下颌关节及下颌骨受力的三维有限元分析。
Three-dimensional finite element analysis of the TMJ and the mandible under orthopedic chincup forces.
方法：通过对 12 例患者在扩弓及内收切牙时应用牙弓夹板式扩弓矫治器及高位牵引的头帽颏兜加强支抗。
Methods: 12 patients were treated with bonded RME appliance to expanse the maxillary arches and with vertical pull chincap to augment anchorage.
目的：用三维有限元法分析不同大小颏兜后上牵引力作用下髁突软骨和下颌骨的应力分布和位移，探讨颏兜的作用机制。
Objective:To analyze the mechanism of the different chincup forces through the stress distribution of the mandible and the mandibular condylar cartilage.
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