. Elementary and dental radiography / by Howard Riley Raper . Fig. 490A. Abscess upper lateral incisor;before treatment. Fig. 496B. Same case as Fig. 496A, sixmonths after treatment. Result: Figure 495A was made in February. Figure 495B was madein December, ten months later. Figure 495B shows the abscess cavityentirely filled with new bone. There is considerable canal filling throughthe end—it is gutta percha. The fistula closed after treatment. (Oper-ator, Dr. Marcus Straussberg, Newark, N. J. Items of Interest, April,1916.) Abscess upper lateral incisor, canal not at time it
. Elementary and dental radiography / by Howard Riley Raper . Fig. 490A. Abscess upper lateral incisor;before treatment. Fig. 496B. Same case as Fig. 496A, sixmonths after treatment. Result: Figure 495A was made in February. Figure 495B was madein December, ten months later. Figure 495B shows the abscess cavityentirely filled with new bone. There is considerable canal filling throughthe end—it is gutta percha. The fistula closed after treatment. (Oper-ator, Dr. Marcus Straussberg, Newark, N. J. Items of Interest, April,1916.) Abscess upper lateral incisor, canal not at time it was decided to resect root: con-sidering the nature of the treatment decided upon,excellent. Treatment: Root resection and curettement, end of canal filled withamalgam. {Filling the end of an unfilled canal with amalgam is especially T18. 496H and B. CANAL SURGERY AND ORAL INFECTION 469 advantageous when the tooth has a post crown on it. To the writer, thisprocedure seems, in most cases, very good practice. If the canal is filledjust previous to the root
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