. Dental and oral radiography : a text book for students and practitioners of dentistry . hemanner shown, the rays can be made to pass inbetween the ascending ramus of the mandible andthe spine, and can pass in at approximately a per-pendicular direction to the long axis of the teethand the plate, giving correct shadow lengths uponthe plate. Fig. 44 shows a radiograph made byusing this technic. If this rule is disregarded and the rays passedthrough the structures, as shown in Fig. 45, Aand B, the shadows of the opposite side will besuperimposed upon the shadows of the structuresdesired, and a
. Dental and oral radiography : a text book for students and practitioners of dentistry . hemanner shown, the rays can be made to pass inbetween the ascending ramus of the mandible andthe spine, and can pass in at approximately a per-pendicular direction to the long axis of the teethand the plate, giving correct shadow lengths uponthe plate. Fig. 44 shows a radiograph made byusing this technic. If this rule is disregarded and the rays passedthrough the structures, as shown in Fig. 45, Aand B, the shadows of the opposite side will besuperimposed upon the shadows of the structuresdesired, and a chaotic result produced. The re-sult of such technic is shown in Fig. 46. In a similar manner as shown in Figs. 42 and43, with slight adjustments in the position of theplate, the head and the tube, the areas in the up-per and lower jaws extending from the medianline to the first premolars, and from the noseabove to the inferior margin of the mandible be-low, can be radiographed (Fig. 47, A and B).Likewise the structures at the median line includ- DENTAL AND ORAL RADIOGRAPHY TECHNIC 99. Fig. 42-A.
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectradiographydental
