Black-pigmented bacteria in coronal and apical segments of infected root canals

Journal of Endodontics
W J DoughertyJ C Baumgartner

Abstract

Black-pigmented bacteria (BPB) have been associated with infections of endodontic origin. The purpose of this study was to culture and identify BPB from the apical and coronal segments of infected root canals to understand better their ecological relationships. Teeth with a periapical radiolucency were extracted and immediately placed in reduced transport fluid for transport to an anaerobic chamber. Of 18 sampled roots, 12 were positive for the growth of BPB. Eight of the 12 roots with BPB had a carious exposure of the pulp chamber. Seven roots had Prevotella nigrescens in both the apical and the coronal segments. Six of these seven teeth had carious exposures of the pulp chamber. Of the 12 roots infected with BPB, six roots had two different species of BPB, with P. nigrescens always being one of the species. P. nigrescens was the most often isolated BPB from both the coronal and apical segments of infected root canals.

References

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Citations

Jan 22, 2011·International Journal of Dentistry·Masahiro YonedaTakao Hirofuji
Jan 1, 2009·Journal of Oral Microbiology·José F Siqueira, Isabela N Rôças
Oct 18, 2011·Journal of Endodontics·José F SiqueiraIsabela N Rôças
May 12, 2009·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·José F SiqueiraMarlei G Silva
Dec 17, 2008·Journal of Endodontics·Takashi ItohTaro Hayakawa
Oct 26, 1999·Journal of Endodontics·J C BaumgartnerT Xia
Apr 18, 2012·Journal of Applied Microbiology·H YumotoT Matsuo
Feb 6, 2015·Virulence·Matthias Zehnder, Georgios N Belibasakis
Aug 24, 2002·International Endodontic Journal·J T Marais, W P Williams
May 19, 2001·Australian Endodontic Journal : the Journal of the Australian Society of Endodontology Inc·J Siqueira JúniorJ C Oliveira
Oct 26, 1999·International Endodontic Journal·G Bogen, J Slots
Sep 15, 2001·Journal of Endodontics·J F SiqueiraK R Santos
Aug 27, 2004·Journal of Endodontics·José F SiqueiraKátia R N Santos
Apr 6, 2021·Frontiers in Cellular and Infection Microbiology·María José BordagarayMarcela Hernández
Oct 30, 2021·International Endodontic Journal·José F Siqueira, Isabela N Rôças

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