TY - JOUR
T1 - Bacteria isolated after unsuccessful endodontic treatment in a North American population
AU - Hancock, H. H.
AU - Sigurdsson, Asgeir
AU - Trope, Martin
AU - Moiseiwitsch, Julian
PY - 2001/5
Y1 - 2001/5
N2 - Objective. The purpose of this study was to determine the composition of the microbial flora present in teeth after the failure of root canal therapy in a North American population. These results were then compared with those of the previous Scandinavian studies. Study design. Fifty-four root-filled teeth with persistent periapical radiolucencies were selected for retreatment. After removal of the root-filling material, the canals were sampled with paper points, and by reaming of the apical dentin. Both samples were grown under aerobic and strict anaerobic conditions. Then the bacterial growth was analyzed. Results. The microbial flora was mainly of 1 to 2 strains of predominantly gram-positive organisms. Enterococcus faecalis was the most commonly recovered bacterial species. Conclusions. Bacteria were cultivated in 34 of the 54 teeth examined in the study. E faecalis was identified in 30% of the teeth with a positive culture.
AB - Objective. The purpose of this study was to determine the composition of the microbial flora present in teeth after the failure of root canal therapy in a North American population. These results were then compared with those of the previous Scandinavian studies. Study design. Fifty-four root-filled teeth with persistent periapical radiolucencies were selected for retreatment. After removal of the root-filling material, the canals were sampled with paper points, and by reaming of the apical dentin. Both samples were grown under aerobic and strict anaerobic conditions. Then the bacterial growth was analyzed. Results. The microbial flora was mainly of 1 to 2 strains of predominantly gram-positive organisms. Enterococcus faecalis was the most commonly recovered bacterial species. Conclusions. Bacteria were cultivated in 34 of the 54 teeth examined in the study. E faecalis was identified in 30% of the teeth with a positive culture.
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U2 - 10.1067/moe.2001.113587
DO - 10.1067/moe.2001.113587
M3 - Article
C2 - 11346739
AN - SCOPUS:0035349742
SN - 1079-2104
VL - 91
SP - 579
EP - 586
JO - Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics
JF - Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics
IS - 5
ER -