. Elementary and dental radiography / by Howard Riley Raper . Fig. 111. Pose for making radiograph- of the Antra of Highmort tipped (Fig. 111) or an incline plane is used (Fig. 114) in order to throwthis shadow as far downward toward the teeth as possible. A straight-through lateral view of the antra may be made to locateforeign bodies in it. (Figs. 277 and 278.) Intra-oral radiography of the antra is not a succes?. (See Fig. on page 235 and 236.) Figure 276 was made from a pose similar to Fig. 108. One antrum. 122 DENTAL RADIOGRAPHY the one closer to the plate, is outlined with the d
. Elementary and dental radiography / by Howard Riley Raper . Fig. 111. Pose for making radiograph- of the Antra of Highmort tipped (Fig. 111) or an incline plane is used (Fig. 114) in order to throwthis shadow as far downward toward the teeth as possible. A straight-through lateral view of the antra may be made to locateforeign bodies in it. (Figs. 277 and 278.) Intra-oral radiography of the antra is not a succes?. (See Fig. on page 235 and 236.) Figure 276 was made from a pose similar to Fig. 108. One antrum. 122 DENTAL RADIOGRAPHY the one closer to the plate, is outlined with the dotted lines, the othermay be seen as the light area, to the readers left and a little above theoutlined Fig. 112. Radiograph made from the pose illustrated in Fig. 111. A, B, frontal , D, orbits. E. F, ethmoid cells. F does not show as well as E because the cells of thisside are full of pus. G, H, Antra of Highmore. I, J, nasal cavity. As an aid in readingthe radiograph observe Fig. 113. The sphenoid cells are situated back of, and a little below, theethmoid cells. Radiography of these cells is very difficult and in the handsof most operators attended with little success. (See Appendix, Chap. V. I For a consideration of the radiography of the mastoids see V. MAKING DENTAL RADIOGRAPHS >-3 Exposure \\ hen the pntient and tube are properly posed, before placing thefilm or plate in position, flash the current through the tube once or twiceso that the patient may become acquainted with the light and noise pro-
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