Journal
AUSTRALIAN ENDODONTIC JOURNAL
Volume 37, Issue 3, Pages 128-133Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1747-4477.2010.00239.x
Keywords
bacteria; hand instrumentation; HeroShaper; K3; ProTaper; rotary instrument
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Funding
- Hacettepe University [07D01201001]
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The aim of this study was to compare the in vitro reduction of a bacterial population in a root canal by mechanical instrumentation using three rotary systems and hand instrumentation technique. The root canals contaminated with a suspension of Enterococcus faecalis were instrumented using ProTaper, K3, HeroShaper and K-file hand instrumentation technique. Later the root canals were sampled. After serial dilutions, samples were incubated in culture media for 24 h. Bacterial colonies were counted and the results were given as number of colony-forming units per millilitre. The results showed that all the canal instrumentation systems reduced the number of bacterial cells in the root canals. Statistically, ProTaper instruments were more effective in reducing the number of bacteria than the other rotary files or hand instruments.
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