. Dental and oral radiography : a textbook for students and practitioners of dentistry . Fig. 43-A.—Tube stand with platerest and head support. (Fisen and Ivy.). Fig. 43-B.—Position of head and angle for left side of jaws. (Fisen and Ivy). DENTAL AND ORAL RADIOGRAPHY TECHNIC 95 The technic is simple when once mastered, but must beadhered to accurately if the results are to be dependedupon for diagnosis. In using the extra-oral method, largeplates or films are used and the areas desired are broughtin as close contact as possible with the plate, by pressingor resting the side or portion of the f
. Dental and oral radiography : a textbook for students and practitioners of dentistry . Fig. 43-A.—Tube stand with platerest and head support. (Fisen and Ivy.). Fig. 43-B.—Position of head and angle for left side of jaws. (Fisen and Ivy). DENTAL AND ORAL RADIOGRAPHY TECHNIC 95 The technic is simple when once mastered, but must beadhered to accurately if the results are to be dependedupon for diagnosis. In using the extra-oral method, largeplates or films are used and the areas desired are broughtin as close contact as possible with the plate, by pressingor resting the side or portion of the face uponwhichthe structures desired are located, against the plate. First of all, the patient must be placed in a position sothat the head can he held perfectly still. The dental chairwith a few adjustments offers an excellent means foraccomplishing this and may be used in any one of severalways. For instance, one of the chair arms can be lowereddown against the side of the chair or removed, and thepatient placed sideways in the chair. The chair back isthen adjusted so that the patient lies against it in an easyposition, and the headrest wings are adjus
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