. Elementary and dental radiography . ced through the bicuspidand out at the opening over the molar. The tooth and both fistulousopenings were injected with bismuth paste and a radiograph made. () I was then able to see that, as I had suspected, the seat of thetrouble was at the apex of the bicuspid. The molar did not need treat-ment. The phenolsulphonic acid could not be forced through the bicus-pid and out at the molar fistulous opening, because it traveled the path ofleast resistance out the nearer opening. The fistulous tract could not be Tim rsiis 01 11 III RADfocR/irii i\ dextist
. Elementary and dental radiography . ced through the bicuspidand out at the opening over the molar. The tooth and both fistulousopenings were injected with bismuth paste and a radiograph made. () I was then able to see that, as I had suspected, the seat of thetrouble was at the apex of the bicuspid. The molar did not need treat-ment. The phenolsulphonic acid could not be forced through the bicus-pid and out at the molar fistulous opening, because it traveled the path ofleast resistance out the nearer opening. The fistulous tract could not be Tim rsiis 01 11 III RADfocR/irii i\ dextistry 201 seen without injection with bismutli paste, because there was so littlebone destruction. Throughout most of its course the fistula traveled be-tween bone and periosteum. A large abscess arising at the apex of the sec-Tffl. 213. o<^l bicuspid, and discharging above the artificial first bicuspid. Bismuth paste injected into the fistuloustract. Perhaps the cuspid is involved also. It should be tested for vital-ity of its Fig. 216 Fig. 2\1 Fig. 218 Fig. 216. The apex of the lateral was cut off, then lost. The radiograph shows its location, so aiding materially in its removal. (Radiograph by Ream, of Chicago.)Fig. 217. A chronic abscess at the apex of an upper central incisor. The tooth carries a post-porcelain crown and the canal is filled almost to the apex. (Radiograph by Lewis, of Chicago.)Fig. 218. The same as Fig. 217 four days after the am]nitation of the apex of the central andcurettement of the pus sinus. (Radiograph by Lewis, of Chicago.) 30. Co Observe tbc field of Operation Before and Jlfter flpicoectomy (Root Jlmputation). When a tooth fails to respond to less radicalTigs. 214 and 21s. treatment, and it is deemed necessary to amputate aportion of the apex of the root, the question nat-urally arises, how much of the root shall be cut ofif? A good radiographwill answer this question. Fig. 214 shows that but little of the rootneed be amputated. Observe tha
Size: 2522px × 991px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1800, bookdecade1810, bookidelementarydenta00rape
