After a description of the normal anatomy of the temporomandibular joint, the technique of examination is reported, including: a) opacification of both lower and upper joint spaces, b) standard films with mouth open and closed, in the sagittal and coronal planes, and c) systematic video-fluoroscopy. The indications are diagnostic and sometimes therapeutic (loosening of adhesions, reduction of meniscal displacement). The authors describe the arthrographic appearance of the various abnormalities observed in a series of more than 600 arthrograms.