. Elementary and dental radiography / by Howard Riley Raper . Fig. 401. Spot at the apex of thedistal root of the anterior lowermolar; has the appearance of anabscess. Fig. 402. Same as Fig. 401, taken ata different angle. The spot showsnow as a cancelous area to the distalof the apex of the distal root of theanterior molar. mally much more cancelous in some individuals than in others, and thesame bone may be more cancelous in some regions than in others. Figure 403 shows suspicious ( ?) areas in the apical region of thecentral and lateral incisors. These areas are the nostrils, which may bemi


. Elementary and dental radiography / by Howard Riley Raper . Fig. 401. Spot at the apex of thedistal root of the anterior lowermolar; has the appearance of anabscess. Fig. 402. Same as Fig. 401, taken ata different angle. The spot showsnow as a cancelous area to the distalof the apex of the distal root of theanterior molar. mally much more cancelous in some individuals than in others, and thesame bone may be more cancelous in some regions than in others. Figure 403 shows suspicious ( ?) areas in the apical region of thecentral and lateral incisors. These areas are the nostrils, which may bemistaken for bone rarefication, due to infection. It is unlikely that thehalf-tone will show it well, but the original negative of Fig. 403 shows theoutline of the end of the nose distinctly. 9. To Mistake a Shadow Caused by the Spinal Column forNecrosis of the Mandible. 368 APPENDIX Figure 404 shows overlapping of the ramus and the spinal column insuch a manner as to give the ramus the appearance of being diseased toone not proficient in the reading of radio


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