Elementary and dental radiography (1813) (14754154351)

Identifier: elementarydenta00rape (find matches)
Title: Elementary and dental radiography
Year: 1813 (1810s)
Authors: Raper, Howard Riley
Subjects:
Publisher: New York : Consolidated Dental Mfg. Co.
Contributing Library: Dentistry - University of Toronto
Digitizing Sponsor: University of Toronto



Text Appearing Before Image:
Fig. 329. The lead glass bowl and X-ray tube must be removed while the centering rod isbeing used. When the stand is set, the rod is removed and the protection bowl and X-ray-tube replaced. The first step is to centre the tube, to place it Sctfins so that a line (line F of Fig. 327) drawn from the tube Stand. focal point on the target will strike the plate in the center. This may be done with the greatest accuracy by the use of the centering rod (Fig. 326), but the use of the rod is not imperative unless a compression cone or cylinder (Fig. 328) is to be used, as will be described presently. After centering the tube, when using a stand like the one in Figs.326 and 330, the stand is set so that the tube may be moved one andone-quarter inch on each side of the. center to positions I and J ofFig. 327 (see illustration). STEREOSCOPIC RADIOGRAPHY 303
Text Appearing After Image:
Fig. 330. Pose for making Fig. 344. It is often expedient to have the patient remove the coat and collar for this pose. 304 DENTAL RADIOGRAPHY