. Elementary and dental radiography / by Howard Riley Raper . Fig. 353. Plastic reproduction of Fig. 34 Fig. 354. Fig. 353 enlarged. radiography would have been trick radiography. I describe the methodsimply as a matter of interest. It is of no practical value whatever. The following are the steps in making a plasticCcchniC Of radiograph. The negative is made as usual. For plastic convenience in referring to it we shall call the nega- Radiograpby. tive the first picture. From the first picture another picture, the second picture, is made on a photographicplate, the technic for doing this b
. Elementary and dental radiography / by Howard Riley Raper . Fig. 353. Plastic reproduction of Fig. 34 Fig. 354. Fig. 353 enlarged. radiography would have been trick radiography. I describe the methodsimply as a matter of interest. It is of no practical value whatever. The following are the steps in making a plasticCcchniC Of radiograph. The negative is made as usual. For plastic convenience in referring to it we shall call the nega- Radiograpby. tive the first picture. From the first picture another picture, the second picture, is made on a photographicplate, the technic for doing this being the same as for making con-tact lantern slides. The first and second pictures are now placed to-gether, non-sensitive sides in apposition, held up to the light and movedabout until the parts of the two pictures overlie one another exactly. Theyare now held immovable while an assistant sticks them together with 318 DENTAL RADIOGRAPHY paper binding strips. Next, place them in a printing frame and make aphotographic print on paper (see Figs. 335. 352, 353 and 354). Whilethe exposure is being made the
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