[Investigations on internal derangement of the temporomandibular joint by direct sagittal CT scanning].

This paper reported the preliminary experience of direct sagittal CT of temporomandibular joint (TMJ) and its modalities of TMJ was made. By using a specially devised table, the bony structure and disc of TMJ can be well demonstrated. The major advantage of this technique is direct demonstration of the articular disc and a diagnosis of anteriorly displaced meniscus which is reducible or irreducible can thus be made. The application of CT in internal derangement of TMJ will open up new insight into the diagnosis and management of these patients.