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Extraradicular endodontic infections
Author(s) -
Tronstad Leif,
Barnett Frederic,
Riso Kenneth,
Slots Jorgen
Publication year - 1987
Publication title -
dental traumatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.82
H-Index - 81
eISSN - 1600-9657
pISSN - 1600-4469
DOI - 10.1111/j.1600-9657.1987.tb00549.x
Subject(s) - actinomyces , anaerobic bacteria , endodontic therapy , microbiology and biotechnology , peptostreptococcus , bacteria , aseptic processing , anaerobic exercise , staphylococcus epidermidis , lesion , medicine , bacteroides , biology , pathology , staphylococcus aureus , dentistry , root canal , surgery , physiology , genetics
Eight asymptomatic periapical inflammatory lesions which were refractory to conventional endodontic therapy were examined for the presence of bacteria. Access to the periapical lesions was gained using an aseptic surgical technique. Sterile currettes were used to take microbiological samples from the soft tissue lesions and scrapings from the surface of the root tips. Möller's VMGA III transport medium was utilized and the bacteriological samples were processed using a continuous anaerobic technique. Bacterial growth was evident in the samples from all 8 lesions. Two lesions exclusively yielded anaerobic bacteria and 5 lesions were heavily dominated by anaerobes. Black‐pigmented Bacteroides species as well as anaerobic gram–positive rods and cocci were isolated. Staphylococcus epidermidis was recovered from 3 lesions and 2 Actinomyces species were isolated from 1 lesion. Facultative Streptococcus species were rare periapical isolates. Our study clearly showed that anaerobic bacteria are able to survive and maintain an infectious disease process in periapical tissues.