. Elementary and dental radiography / by Howard Riley Raper . ¥ co Fig. 343. No stereoscopic effect at all is obtained with the radiographs mounted as in this figure. We now come to a more definite consideration Special teebnic °^ dental stereoscopic radiography. Stereoradio- for Dental Stereo- graphs of the lower teeth may be made on plates Radiography. using the plate changer illustrated in Fig. 327. Fig. 344 is such a stereoradiography Fig. 344 was made from the pose illustrated in Fig. Fig. 344. Though the stereoscopic effect is not very good the figure is representative of whatcan b
. Elementary and dental radiography / by Howard Riley Raper . ¥ co Fig. 343. No stereoscopic effect at all is obtained with the radiographs mounted as in this figure. We now come to a more definite consideration Special teebnic °^ dental stereoscopic radiography. Stereoradio- for Dental Stereo- graphs of the lower teeth may be made on plates Radiography. using the plate changer illustrated in Fig. 327. Fig. 344 is such a stereoradiography Fig. 344 was made from the pose illustrated in Fig. Fig. 344. Though the stereoscopic effect is not very good the figure is representative of whatcan be done by the method employed to make this stereoradiograph. STEREOSCi >IIC RADIOGRAPHY 311 When making stereoradiographs on separate plates, like Figs. 345and 346, it is necessary to use a large plate changer, like Figs. 325 and 345 and 346 were made on eight by ten inch plates, and the radio-graphs reduced, as shown in the figures, so that they might be observedwith the small hand stereoscope. To observe the original negatives it isnecessary to use a large stereoscope (Fig. 323). When making dental stereoradiographs, on filmsDental film held in the mouth during their exposure, the problem fielder. of replacing the first film, after its exposure, with a second film, which will occupy precisely the sameposition as the first, is one fraught with great difficulties. In an effortto accomplish this the writer uses a Kny-Sheerer film holder and model-ing composition. The film hol
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