[Radiation exposure and radiation protection in radiodiagnosis of the temporomandibular joint].

There are considerable differences in the various methods of taking x-rays of the temporo-mandibular joint as far as skin exposure to radiation is concerned. Our own measurements revealed doses ranging from 0.2 to 0.8 rem. The values were especially high when using the method of PARMA. Therefore the question is raised whether, considering the provisions of the radiology regulations, there are any cases in which this way to demonstrate the temporomandibular joint is still indicated. As to the measured gonadal doses ranging between 0.02 and 0.18 mrem, no essential differences in the indications of the various methods need to be considered.