Dental X-ray diagnostic device

摘要

A dental X-ray diagnostic device for producing panoramic layer exposures of a subject particularly panoramic layer exposures of a jaw characterized by an X-ray source mounted on an arm of a carriage, a cassette which receives X-ray film and is rotatably mounted on the arm so that when the arm of the carriage is rotated both the source and cassette rotate around the subject with the cassette also being rotated relatively on the arm and a slit diaphragm having a changeable effective width for varying the thickness of the layer in which sharp images can be obtained.