. Elementary and dental radiography / by Howard Riley Raper . Fig. 47o. Forty-eight teeth, other than molars, where efforts have been made to fill canals. The canal filling material fails to reach the end of the root in forty-seven out of the forty-eight. These teeth were selected at random. CANAL SURGERY AND ORAL INFECTION 439 physical possibility of filling the canals of the teeth referred to above—except in a very few anomalous cases—and no one who has observed aconsiderable number of radiographs, will deny the fact that it has notbeen done, and no one, who has commenced to check up his roo
. Elementary and dental radiography / by Howard Riley Raper . Fig. 47o. Forty-eight teeth, other than molars, where efforts have been made to fill canals. The canal filling material fails to reach the end of the root in forty-seven out of the forty-eight. These teeth were selected at random. CANAL SURGERY AND ORAL INFECTION 439 physical possibility of filling the canals of the teeth referred to above—except in a very few anomalous cases—and no one who has observed aconsiderable number of radiographs, will deny the fact that it has notbeen done, and no one, who has commenced to check up his root canalfillings with radiographs, will deny the additional fact that the canals of. Figs. 47(5, 477 and 478. Repeated efforts to fill the canal of an upper central incisor. Notethe little canal leaving the main canal, to the mesial, at right angles, in Figs. 477 and 47V teeth never will be filled until radiographs are used to show the operatorwhen he succeeds in placing his canal filling to the end of the root andwhen he fails. ( >ne of my friends says: The great trouble in filling^InVcSSfr* canaIs arises from the fact that the canal filling material doesnt go where you put it. And so itseems, indeed, when one commences to radiograph his canal will place a canal filling in a single-rooted tooth and, before radio-graphic examination be willing to swear you have placed it to the end ofthe root, only to learn, after radiographic examination, that you have 476, 477 and 478 illustrate repeated efforts to fill the canal ofa central incisor. This was done by an operator of unquestionable 476 illustrates the result of the first effo
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