Occurrence of penicillin-resistant and beta-lactamase-producing Bacteroides species in the oral cavity
Heimdahl, A.; von Konow, L.; Nord, C.E.
Scandinavian Journal of Gastroenterology. Suppl 91: 13-30
1984
ISSN/ISBN: 0085-5928 PMID: 6610922 Document Number: 223547
Bacteroides species are known to play an important role in orofacial infections. The present investigation shows that penicillin-resistant Bacteroides species are commonly found in the oral cavity and that their occurrence is related to previous penicillin therapy. Several of the penicillin-resistant isolates were also resistant to erythromycin and/or doxycycline while all strains were sensitive to clindamycin and tinidazole. the penicillin resistance was mainly due to beta-lactamase production. A selective cultivation method for detection of penicillin-resistant Bacteroides is described.