Abstract
The success of endodontic therapy relies on complete eradication of microorganisms from the root canal system. However, there are some resistant strains such as Enterococcus faecalis which persist in the root canals, leading to endodontic failures. Various antimicrobial agents have been tested time to time for their efficiency against this pathogen. The purpose of this study was to compare the antimicrobial efficacy of calcium hydroxide releasing 'Calcium hydroxide plus points'; chlorhexidine releasing 'Activ points', chlorhexidine and calcium hydroxide releasing 'Combi points' against Enterococcus faecalis. By measuring the zone of inhibition, it was concluded that 'Calcium hydroxide plus points were not effective, while both Activ points and Combi points showed results significantly better than Calcium hydroxide plus points. The results indicate the calcium hydroxide alone may not be effective when expecting Enterococcus faecalis in particular endodontic cases and must be replaced or adjuncted by the use of chlorhexidine.
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