Abstract: A method of making stereophotographic documentation and photogrammetric of impressions or of models of jaws, in which the impression or the model of a jaw is placed on a reference object, which in its turn is placed on a bottom plate in a photo device. The photo device includes camera mounted in a frame at a distance from the bottom plate and a light source for illuminating the impression or model on the reference object. A picture of the impression or the model of a jaw is taken by means of the camera, when the camera has position at a predetermined given reference angle distance from the vertical line. A second picture is taken of the impression or the model of a jaw after the camera has been moved to a corresponding position on the other side of the vertical line. The two pictures are placed on a tray which is intended is cooperate with a stereoscope in such a way that the two pictures can be seen three-dimensionally in the stereoscope.

Abstract: Apparatus and method for producing a digital panoramic X-ray image of an object is disclosed. The system of the invention includes an X-ray source and a digital radiation detector, which move around the object in unison in a certain time period. The radiation detector produces pixel data signals that are proportional to the incident X-rays on it. The pixel data signals are integrated over a series of varying time intervals to obtain pixel data signals which are proportional to the X-rays incident upon the radiation detector during each time interval. The integrated pixel data signals are converted into digital signals, which are then used to produce a digital X-ray image of the object.