. Dental and oral radiography; a textbook for students and practitioners of dentistry . ay. With the more powerful types of apparatus, extra-oralradiograms require but short exposures, but if an oper-ator does not possess high power apparatus, he shouldnot hesitate to use this method, as a patient properlyseated and supported, as shown in Fig. 49, can easily re-main quiet for five or ten seconds, or perhaps even longer,should it be necessary. In making a complete radiographic examination of theteeth, the maxilla and mandible, the author suggests thefollowing procedure. Extra-oral radiograms sh
. Dental and oral radiography; a textbook for students and practitioners of dentistry . ay. With the more powerful types of apparatus, extra-oralradiograms require but short exposures, but if an oper-ator does not possess high power apparatus, he shouldnot hesitate to use this method, as a patient properlyseated and supported, as shown in Fig. 49, can easily re-main quiet for five or ten seconds, or perhaps even longer,should it be necessary. In making a complete radiographic examination of theteeth, the maxilla and mandible, the author suggests thefollowing procedure. Extra-oral radiograms should be DENTAL AND ORAL RADIOGRAPHY TECIIISriC 105 made of each side, using the technic ilhistrated in , 51, and 55. This would mean two plates for eachside. Then by the use of intra-oral films, the region ly-ing between the cuspids both above and below, should beradiographed. These plates and films should then bedeveloped and examined. If the procedure has been car-ried out with due regard for all the elements involved,the result should constitute a general radiographic sur-. Fig. 57.—In following the technic illustrated in Fig. 56 the patients head should besupported by a bandage of gauze to insure perfect immobility. vey of the teeth, the maxilla and the mandible. Shouldany of the plates or films exposed fail to result in goodradiograms, additional exposures should be made, asnothing but good radiograms should be depended uponfor diagnosis. It is sometimes advisable after making a complete radi-ographic examination by the method just advocated, tocheck up the findings of extra-oral radiograms by theuse of the intra-oral films. For instance, suppose a large 106 DEISTTAL AND ORAL RADIOGRAPHY plate shows what appears to be an abscess upon the rootof an upper bicuspid or molar tooth. An intra-oral radio-gram of this particular area will often settle any doubts,as a higher degree of detail can often be obtained by con-centrating upon the small area in question. The autho
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