Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.joen.2008.04.006
Title: Influence of Irrigation Regimens on the Adherence of Enterococcus faecalis to Root Canal Dentin
Authors: Kishen, A. 
Sum, C.-P.
Mathew, S.
Lim, C.-T. 
Keywords: Adhesion force
bacterial adherence
biofilm
dentin
irrigation
Issue Date: Jul-2008
Source: Kishen, A., Sum, C.-P., Mathew, S., Lim, C.-T. (2008-07). Influence of Irrigation Regimens on the Adherence of Enterococcus faecalis to Root Canal Dentin. Journal of Endodontics 34 (7) : 850-854. ScholarBank@NUS Repository. https://doi.org/10.1016/j.joen.2008.04.006
Abstract: Enterococcus faecalis is frequently associated with post-treatment endodontic infections. Because adherence of bacteria to a substrate is the earliest stage in biofilm formation, eliciting the factors that links adherence of this bacterium to dentin would help in understanding its association with treatment-failed root canals. This investigation aimed to study the effects of endodontic irrigants on the adherence of E. faecalis to dentin. The bacteria adherence assay was conducted by using fluorescence microscopy, and the adhesion force was measured by using atomic force microscopy. There were significant increases in adherence and adhesion force after irrigation of dentin with ethylenediaminetetraacetic acid (EDTA), whereas sodium hypochlorite (NaOCl) reduced it. With the use of chlorhexidine (CHX), the force of adhesion increased, but the adherence assay showed a reduction in the number of adhering bacteria. The irrigation regimen of EDTA, NaOCl, and CHX resulted in the least number of adhering E. faecalis cells. This study highlighted that chemicals that alter the physicochemical properties of dentin will influence the nature of adherence, adhesion force, and subsequent biofilm formation of E. faecalis to dentin. © 2008 American Association of Endodontists.
Source Title: Journal of Endodontics
URI: http://scholarbank.nus.edu.sg/handle/10635/60530
ISSN: 00992399
DOI: 10.1016/j.joen.2008.04.006
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