. Elementary and dental radiography / by Howard Riley Raper . J Chart D D WORKING DENTAL RADIOGRAPHS 415 Chart D DIllustrating a number of different cases where extraction is indicated No. 1. The abscess is ■,() large—i. e., there is such extensive bonedestruction—the cast- looks as though it might he syphillitic, but is of all the teeth involved was deemed the best procedure. Xo. 2. So much bone destruction that treatment of any sortcalculated to lead to the retention of the tooth would probably fail toeradicate infection. Xo. 3. The bone about the distal root of the first mola
. Elementary and dental radiography / by Howard Riley Raper . J Chart D D WORKING DENTAL RADIOGRAPHS 415 Chart D DIllustrating a number of different cases where extraction is indicated No. 1. The abscess is ■,() large—i. e., there is such extensive bonedestruction—the cast- looks as though it might he syphillitic, but is of all the teeth involved was deemed the best procedure. Xo. 2. So much bone destruction that treatment of any sortcalculated to lead to the retention of the tooth would probably fail toeradicate infection. Xo. 3. The bone about the distal root of the first molar is entirelygone; the canal fillings in the mesial root are faulty and probably couldnot be made perfect. (It is very difficult to open canals of molars tothe end when opening the tooth for the first time. When the canalshave already been partially filled by a previous operator, the chance ofopening such canals to the end is greatly lessened.; Two perforations with canal filling passing through them in thesecond molar. Extraction of both first and se
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