Analysis of positive cultures from endodontically treated teeth: a retrospective study.
A study of 12,150 endodontically treated teeth from 11,797 patients in a private patient setup revealed an incidence of 10.2% positive cultures obtained just before obturation of the root canal. Streptococcal predominance was reflected by a presence of nearly 60% in the pure culture and nearly 98% in the mixed cultures. No significant changes in microbial predominance or bacterial sensitivities were detected over the 7-year period of study. Ampicillin, cephalothin, erythromycin, and penicillin were the most effective antibiotics against the viridans streptococci, the most prevalent organism in the infected teeth.
Stern
M H
MH
University of Texas Dental Branch, Dental Science Institute, Houston.
Dreizen
S
S
Ott
T W
TW
Levy
B M
BM
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001419:Bacteria / Q000302:isolation & purification; D002648:Child; D015169:Colony Count, Microbial; D003786:Dental Pulp Cavity / Q000382:microbiology*; D004352:Drug Resistance, Microbial; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies