. Elementary and dental radiography . Fig. 230 Fig. 231 Fig. 230. The arrow points to a bit of tooth root. Notice how clearly the gum tissue shows in this radiograph. (Radiograph by Ream, of Chicago.) Fig. 231. A bit of tooth root, one end resting on the edge of an ill-fitting shell crown, the other against the cuspid. The abscess caused by this piece of root extends to the apex and to the mesial of the cuspid. (Radiograph by Blum, of New York City.) 33. to Diagnose Tracturc of a Root. Within the same week two cases in which theTigs. 232 and 233. upper anterior teeth had sustained a severe blo
. Elementary and dental radiography . Fig. 230 Fig. 231 Fig. 230. The arrow points to a bit of tooth root. Notice how clearly the gum tissue shows in this radiograph. (Radiograph by Ream, of Chicago.) Fig. 231. A bit of tooth root, one end resting on the edge of an ill-fitting shell crown, the other against the cuspid. The abscess caused by this piece of root extends to the apex and to the mesial of the cuspid. (Radiograph by Blum, of New York City.) 33. to Diagnose Tracturc of a Root. Within the same week two cases in which theTigs. 232 and 233. upper anterior teeth had sustained a severe blow pre-sented at the college clinic for treatment. In one casea lateral incisor (Fig. 232), and in the other case both centrals (Fig. 233)were very loose. Radiograph Fig. 232 shows the root of the lateralfractured. Extraction is indicated. Radiograph Fig. 233 shows thatthe roots of the centrals are not fractured. Extraction is contraindicated.(As can be seen in the radiograph, both central crowns are broken off, andone lateral is knoc
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