. Elementary and dental radiography / by Howard Riley Raper . case. Fig. 140 is a radiograph of the same case one month after theextraction of the temporary molar. Notice how rapidly the bicuspid iserupting into its place. The force of eruption, which had been held inabeyance for about eleven years, became promptly active upon removalof the abating object. Case—young man, age twenty-one. A retained,Tigs. 141 and 142. temporary, upper cuspid with no observable sign ofthe succedaneous cuspid. A radiograph was made(Fig. 141), but, being a poor one, it failed to show the looked-for from
. Elementary and dental radiography / by Howard Riley Raper . case. Fig. 140 is a radiograph of the same case one month after theextraction of the temporary molar. Notice how rapidly the bicuspid iserupting into its place. The force of eruption, which had been held inabeyance for about eleven years, became promptly active upon removalof the abating object. Case—young man, age twenty-one. A retained,Tigs. 141 and 142. temporary, upper cuspid with no observable sign ofthe succedaneous cuspid. A radiograph was made(Fig. 141), but, being a poor one, it failed to show the looked-for from the reading of this radiograph I was able to state with a mod-erate degree of certainty that the cuspid was present in the jaw. If the THE USES OF THE RADIOGRAPH IN DENTISTRY 159 tooth itself cannot be seen, what is there in the picture to lead lie tobelieve that the permanent cuspid is present? The arrow points to theupper end of a dark line. The dark line represents dense bone and sucha line almost always is to he noted in radiographs of impacted Fig. 139. Fig. 140. Fig. 139. Retained temporary, lower, second molar, with the succedaneous tooth beneath it. Ageof patient, twenty-two. The dark spots in the temporary tooth and two permanent molars aremetal fillings. All of the mesial root and some of the distal root of the temporary tooth 140. The same as Fig. 139 one month after extraction of the temporary tooth. Observehow rapidly the bicuspid is erupting. When this picture was made it could be seen in the mouth.
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