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颞颌关节是体内唯一左右联动的关节,其主要构成部分是下颌骨的髁状突,它不仅是关节运动的组成部分,也是下颌骨的发育中心,常易遭受很多疾病的罹患,如:肿瘤、外伤、畸形等。由于髁状突处于临近骨结构的包围中,目前所采用的X线平片或体层,因有周围骨结构的重叠,很难清楚显示该部分复杂病变的细节。即使CT的横、冠状面扫描,虽可避免相邻结构的重叠,但对髁状突区各种因素造成的病变,缺乏立体角度显现,
Temporomandibular joint is the only left and right joint in the body. Its main component is mandibular condyle. It is not only part of joint movement, but also the development center of the mandible. It often suffers from many diseases such as tumor , Trauma, deformity and so on. Since the condyles are located in the vicinity of the adjacent bone structure, the details of the complicated lesions in this area are hard to clearly show due to the overlap of the surrounding bone structures. Even if the CT horizontal and coronal scan, although the overlap of adjacent structures can be avoided, but the condyle caused by various factors lesions, the lack of three-dimensional point of view,