. Elementary and dental radiography . Fig. 109. Dental radiograph madedirectly on bromide Fig. 110. The negative for thisradiograph was made at the sametime with Fig. 109, the filmbeing enclosed in the same packetwith the bromide paper. Lantern slides mav easily be made from a good Cantcm negative. A lantern slide plate is a photographic Slides* plate 3^x4 inches, manufactured especially for the purpose. Like all other photographic plates, it should be worked in the ruby, never the orange, light. The negative is placed in the printing frame, sensitive side up, and the slide laid over i
. Elementary and dental radiography . Fig. 109. Dental radiograph madedirectly on bromide Fig. 110. The negative for thisradiograph was made at the sametime with Fig. 109, the filmbeing enclosed in the same packetwith the bromide paper. Lantern slides mav easily be made from a good Cantcm negative. A lantern slide plate is a photographic Slides* plate 3^x4 inches, manufactured especially for the purpose. Like all other photographic plates, it should be worked in the ruby, never the orange, light. The negative is placed in the printing frame, sensitive side up, and the slide laid over it, sensitive Note.—Fig. no appears to be reversed. • This is due to the fact that it is aprint from the film. In the film itself the teeth would appear in same positionsas in Fig. 109.—Eo. MAKING DEXTAL RADIOGRAPHS 119 side down. The average celluloid, dental, radiographic negative is of suchdensity that the time of exposure of the plate to a 16-C. P. electric light, ata distance of two feet, is between one and two seconds. Allow the slidesto remain in the developer a few seconds after
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