. Interpretation of dental and maxillary roentgenograms . Fig. 22. Fig. 22-G. C—Plate of right side. ^ D and B.—Films of upper left teelh. F and G.—Films of upper right teeth. 56 INTERPRETATIOlsr OF ROENTGENOGRAMS plate rest is fixed at an angle of 15 degrees do\\Tiwardfrom the horizontal, and is placed 19 inches from thetarget. The tube holder and funnel are drawn out to thefull length of the horizontal arm of the stand, and tippedinwardly at an angle of 30 degrees from the vertical (). A 5x7 inch plate with the emulsion side up is placedon the plate rest. The patient is now seated some
. Interpretation of dental and maxillary roentgenograms . Fig. 22. Fig. 22-G. C—Plate of right side. ^ D and B.—Films of upper left teelh. F and G.—Films of upper right teeth. 56 INTERPRETATIOlsr OF ROENTGENOGRAMS plate rest is fixed at an angle of 15 degrees do\\Tiwardfrom the horizontal, and is placed 19 inches from thetarget. The tube holder and funnel are drawn out to thefull length of the horizontal arm of the stand, and tippedinwardly at an angle of 30 degrees from the vertical (). A 5x7 inch plate with the emulsion side up is placedon the plate rest. The patient is now seated somewhat tothe right or left of the stand with the head laid on the. Fig. 23.—Eisen plate rest attached to stand for taking head plates. plate in such a position that the focal ray will passthrough the mastoid process of the uppermost side of thehead (Fig. 24). This position brings the uppermost sideof the mandible in as nearly a perpendicular position aspossible to the plate, thus minimizing overlapping of thetwo sides. If canine and premolar regions are particu-larly desired, the patients nose should be pressed againstthe plate, while for molars the nose should be slightly CORRELATION OF CLIXICAL FI]SDINGS 57 raised from the plate. The head clamp is now tightened,and the exposure made. For intraoral films, the angle of the tube holder is re-versed as shown in Fig. 25, the patients head being sup-ported by an ordinary head rest attached to the back ofthe chair. As a rule, no sort of film holder other than thepatients thumb or finger is necessary, though occasion-ally the cork devised by Dr. M. L. Rhein is of film fits into a slot cut i
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectradiographydental
