Bacteria in the apical 5 mm of infected root canals

John (Craig) Baumgartner, William A. Falkler

Research output: Contribution to journalArticle

175 Citations (Scopus)

Abstract

Ten freshly extracted teeth which had carious pulpal exposures and periapical lesions contiguous with the root apex were placed inside an anaerobic chamber and the apical 5 mm of the root canals cultured. In addition to anaerobic incubation, duplicate cultures were incubated aerobically. Fifty strains of bacteria from the 10 root canals were isolated and identified. The most prominent bacteria cultured from the 10 root canals were Actinomyces, Lactobacillus, black-pigmented Bacteroides, Peptostreptococcus, nonpigmented Bacteroides, Veillonella, Enterococcus faecalis, Fusobacterium nucleatum, and Streptococcus mutants. Of the 50 bacterial isolates, 34 (68%) were strict anaerobes. This study demonstrates the presence of predominately anaerobic bacteria in the apical 5 mm of infected root canals in teeth with carious pulpal exposures and periapical lesions.

Original languageEnglish (US)
Pages (from-to)380-383
Number of pages4
JournalJournal of Endodontics
Volume17
Issue number8
DOIs
StatePublished - 1991
Externally publishedYes

Fingerprint

Dental Pulp Cavity
Bacteria
Bacteroides
Tooth
Veillonella
Fusobacterium nucleatum
Peptostreptococcus
Actinomyces
Anaerobic Bacteria
Enterococcus faecalis
Lactobacillus
Streptococcus

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Bacteria in the apical 5 mm of infected root canals. / Baumgartner, John (Craig); Falkler, William A.

In: Journal of Endodontics, Vol. 17, No. 8, 1991, p. 380-383.

Research output: Contribution to journalArticle

Baumgartner, John (Craig) ; Falkler, William A. / Bacteria in the apical 5 mm of infected root canals. In: Journal of Endodontics. 1991 ; Vol. 17, No. 8. pp. 380-383.
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