Perforation of the intra-articular disc diagnosed by arthro-tomography of the temporomandibular joint.

Arthrography was first used almost 40 years ago for evaluation of the non-osseous parts of the TMJ. It did not find wide application and only during the last decade have certain authors re-introduced its use as a diagnostic approach in TMJ pathology. Among the other pathological conditions which can be diagnosed, is a perforation of the intra-articular disc. Four such cases are presented and the value of this method is shown.