Radiological representation of internal derangement of the temporomandibular joint arthrosis by Fuji Computed Radiography were studied. We found that best results of articular soft tissue image were obtained using a tomographic movement with spiral and angle 16° and from narrowing the field to 5cm diameter of the IP's surface. Further articular soft tissue image was clearer in the spatial frequency enhanced image which emphasized edge effect than the gradient enhanced image. In the series of 103 cases (147 joints) of the temporomandibular joint arthrosis, there were found of abnormal Type A (56 joints), abnormal Type B (14 joints) and no abnormality detected (77 joints). In the correlation of FCR images of articular soft tissue and clinical symptoms, Type A was definitely associated with clicking and Type B with jaw locking.
