Apparatus for x-ray photography of the area of the dentition and of the jaws

Abstract From the Canadian patent

Apparatus for panoramic X-ray photography of the area of the dentition and the jaws, has a bearing part linearly movable in relation to a frame part and a, support arm rotatably attached by bearings to the bearing part, the arm having at one end an X-ray film and at the opposite end a source of X-radiation. The movements of the bearing part, the support arm and the film are mutually synchronized in such a way that an image of an area of the desired shape, for example the shape of the patient's dental arch, is obtained on the film during the movement. The enlargement coefficient can be altered and the X-ray beam can be tilted to the desired angle in relation to the horizontal plane, whereby …