. Elementary and dental radiography / by Howard Riley Raper . Fig. 103. Pose for radiographing the lower anterior teeth with the film 3at against the occlusalsurfaces and incisal edges. Radiograph made from this pose. (Xote rubber matting insula-tion again.) ii4 DENTAL RADIOGRAPHY properly or becomes spotted or mutilated in some way the mistake oraccident may be corrected when the other film is developed. Also, if thecase is a referred one, one negative may be kept on file, and the other. Fig. 104. Horizontal section of the upper and lower jaws cut a little beyond the free marginof the alveola
. Elementary and dental radiography / by Howard Riley Raper . Fig. 103. Pose for radiographing the lower anterior teeth with the film 3at against the occlusalsurfaces and incisal edges. Radiograph made from this pose. (Xote rubber matting insula-tion again.) ii4 DENTAL RADIOGRAPHY properly or becomes spotted or mutilated in some way the mistake oraccident may be corrected when the other film is developed. Also, if thecase is a referred one, one negative may be kept on file, and the other. Fig. 104. Horizontal section of the upper and lower jaws cut a little beyond the free marginof the alveolar process, showing the forms and positions of the roots of the various teeth.(From Cryers Internal Anatomy of the Face.) sent to the dentist or physician who referred the patient. The Eastmandental films, No. 3, 4 x 6 inches, and No. 4, 8 x 10 inches are preparedin packets containing a pair of films, for extra-oral work. A number of manufacturers supply special X-ray plates. (See chap- MAKING DENTAL RADIOGRAPHS 115 ter IV, page 66.) The Brady product is particularly worthy of consid-eration because, when it was first placed on the market it was the fastest X-ray plate thus far made, and so it enabled men with smallX-ray machines to do extra-oral dental radiographic work, who hadhitherto found this work impossible, owing to the limited power of theirmachines and the insufficient sensitivity of X-ray plates to the action ofthe X-rays. The size of the plate used for extra-oral work m
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