. Elementare und zahnärztliche Radiographie . hergestellt auf einer großen Platte (Abb., loi und 102) oder einem Film auf der Außenseite des Mundes (Abb. L 97, S. Mit dem Theradiograph, um den Verdacht zu bestätigen und die genaue Lage des Zahns zu zeigen, kann der Bediener den Patienten betäuben, den Mund mit einer Mundstütze öffnen und den Zahn extrahieren. Abb. 299 ist ein Fall, in dem der Mund konnte Tig. 299. Nicht geöffnet werden, weil der Entzündung durch den betroffenen unteren dritten Molar im Radio-Graph gesehen verursacht. Run Verwendungen von Wanne RADiocRArii jx Dextjstry 263 62. TN Research Ulork zum Studium der Osteologie, der Entwicklung
1760 x 1419 px | 29,8 x 24 cm | 11,7 x 9,5 inches | 150dpi
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. Elementary and dental radiography . made on a large plate (Figs, loi and 102) or a film on the outside of the mouth (Fig. 97). With theradiograph to confirm suspicions and show the exact location of the of-fending tooth, the operator may proceed to anesthetize the patient, forcethe mouth open with a mouth prop and extract the tooth. Fig. 299 is a case in which the mouth couldTig. 299. not be opened because of the inflammation caused by the impacted lower third molar seen in the radio-graph. run uses of tub RADiocRArii jx dextjstry 263 62. Tn Research Ulork to Study Osteology, the Development of the teeth, Action ofBismuth Paste, Bone Production and Destruction, Changes Occurring in the tem-poro-ltlandibular Jfrticulation Ulhen lumping the Bite, Blood Supply to Parts, Re-sorption of teeth and the Causes for Tt. etc. The value of the radiograph to the man who is looking for the just-how and why of things is clearly apparent. It obviates the necessity ofconjecture, and gives us simple, indisputable facts. Many problems now. Fig. 290. Impacted lower tliird molar, causing a false ankylosis. (Radiograph by Graham, of Detroit.) confronting the deiital scientist can be solved only by the intelligent andpersistent use of the X-rays. Jt is not ni}- intention now to tell of all the different uses to whichthe radiograph has been and may be put in the broad field of dentalscientific research. I could not if I tried. I shall mention but a few. Dr. Joseph Beck, b} the use of the stereoscopic radiographs, is mak-ing a comparative study of the pneumatic sinuses of man and the loweranimals. 264 DENTAL RADIOGRAPHY Dr. Johnson Symington and Dr. J. C. Rankin have recently publisheda book, An Atlas of Skiagrams, illustrating, in twenty radiographs, thedevelopment of the teeth and jaws from birth to the age of sixteen years. I have demonstrated the action of bismuth paste in one case. (Fig.223.) No definite conclusions should be drawn from this single case. Thefield of research work alon
