To study the diagnostic value of three dimensional (3D) CT in the sagittal fracture of mandibular condyle(SFMC),and analyse its predilection location and clinical characteristics.

• 探索三维CT对下颌骨髁状突矢状骨折（SFMC）的临床应用价值，分析SFMC好发位置及临床特点。材料和方法：对25例（50侧）疑有髁状突骨折的患者作了螺旋CT三维重建的检查，结合横断位和冠状位二维CT图像，确定SFMC。