Journal article
Detection and Quantitation of E. faecalis by Real-time PCR (qPCR), Reverse Transcription-PCR (RT-PCR), and Cultivation During Endodontic Treatment
Journal of Endodontics, Vol.32(8), pp.715-721
2006
DOI: 10.1016/j.joen.2006.02.031
PMID: 16861068
Abstract
Enterococcus faecalis is frequently recovered from refractory endodontic infections and has been implicated in endodontic treatment failures. This study compared real-time quantitative PCR (qPCR) assay to cultivation for E. faecalis detection and quantitation during endodontic treatment. A reverse-transcription PCR (RT-PCR) assay was also developed to detect the bacterium clinically in the viable but nonculturable (VBNC) state. Intra-canal samples ( n = 87) were collected upon access, post-instrumentation/irrigation and postcalcium hydroxide treatment from 15 primary and 14 refractory infections involving 29 single-rooted teeth, and analyzed by the three methods. The bacterium was up to three times more prevalent in refractory than primary infections at each collection step. Overall, qPCR detected significantly more E. faecalis-positive teeth and samples than cultivation (p < 0.001). VBNC E. faecalis was detected by RT-PCR in four samples that were negative by cultivation. These findings support qPCR and RT-PCR as more sensitive methods than cultivation for detecting E. faecalis in endodontic infections.
Details
- Title: Subtitle
- Detection and Quantitation of E. faecalis by Real-time PCR (qPCR), Reverse Transcription-PCR (RT-PCR), and Cultivation During Endodontic Treatment
- Creators
- John M Williams - Department of Endodontics, School of Dentistry, The University of North Carolina, Chapel Hill, North CarolinaMartin Trope - Department of Endodontics, School of Dentistry, The University of North Carolina, Chapel Hill, North CarolinaDaniel J Caplan - Department of Dental Ecology, School of Dentistry, The University of North Carolina, Chapel Hill, North CarolinaDiane C Shugars - Department of Dental Ecology, School of Dentistry, The University of North Carolina, Chapel Hill, North Carolina
- Resource Type
- Journal article
- Publication Details
- Journal of Endodontics, Vol.32(8), pp.715-721
- Publisher
- Elsevier Inc
- DOI
- 10.1016/j.joen.2006.02.031
- PMID
- 16861068
- ISSN
- 0099-2399
- eISSN
- 1878-3554
- Language
- English
- Date published
- 2006
- Academic Unit
- Preventive and Community Dentistry
- Record Identifier
- 9983917777802771
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