通过对颞下颌关节扫描图像的测量，探讨正常人群颞下颌关节相关的解剖关系，以及颞下颌关节的关节盘和髁状突位置关系，并作定量分析。
To discuss and analyze quantitatively the relative anatomy of the TMJ and the position relation between the articular disc and the condyle by measuring the MRI image of the TMJ.
目的探讨带血管蒂的颞肌筋膜瓣在改良乳突根治术中的手术疗效。
Objective To evaluate the efficacy of the pedicle the temporalis myofacial flap in modified mastoidectomy.
结论：下颌骨缺损重建对颞下颌关节结构和功能具有一定的影响，保留髁状突时所受影响要明显小于未保留髁状突组。
Conclusions: mandibular reconstruction affected the function of temporomandibular joint, which is less in patients of the condyle retained than in those of the condyle not retained.
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