[Luxation-fractures of the temporomandibular process in orthopantomogram]

The orthopantomogram (according to Paatero) offers a first orientation survey for diagnosing a fracture-dislocation of the neck of the mandibular condyle. It is easy to take, does not cause any pain, and involves relatively little exposure to radiation. Its value for diagnosing should not, however, be overestimated, since the number of errors is outstandingly high as the present investigation has shown. Only in very few cases it may be sufficient for making the diagnosis. Generally, several radiograms taken in at least two different planes of the temporomandibular joint region are required for establishing an exact diagnosis of a fracture-dislocation of the condyle.