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The effect of temperature and contact time of sodium hypochlorite on human roots infected with Enterococcus faecalis and Candida albicans

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Abstract

The aim of this study was to evaluate the effectiveness of 2.5 % NaOCl at different temperature and time intervals on Enterococcus faecalis and Candida albicans-infected human roots. A total of 112 root cylinders prepared from extracted single-rooted humans were infected by E. faecalis (Group A, n = 56) or C. albicans (Group B, n = 56); 3 root cylinders served as negative controls. Both groups were further divided into 6 subgroups according to three contact times (30 s, 1 min, 5 min) with NaOCl at two different temperatures (25 or 37 °C). Microorganism growth was controlled at the 24th and 48th hours. Statistical analysis was performed using the Chi-square test. While NaOCl at 25 °C for 5 min was the most effective irrigation regimen to eliminate E. faecalis (p < 0.001), NaOCl at 37 °C for 5 min exhibited significantly superior antifungal properties (p < 0.05). At the same contact times, difference in the temperature of NaOCl did not affect the growth of either E. faecalis or C. albicans. As a result, the irrigation time of NaOCl was more effective than the temperature to eliminate E. faecalis, while pre-heating of NaOCl to 37 °C increased its effectiveness on C. albicans at 5 min contact time.

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Acknowledgments

The authors are grateful to Prof. Dr. Atilla H. ELHAN for analyzing the data.

Conflict of interest

The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. Department of Endodontics, Faculty of Dentistry, Baskent University, Ankara, Turkey

    Kamran Gulsahi

  2. Department of Pediatric Dentistry, Faculty of Dentistry, Baskent University, Bahcelievler, 06490, Ankara, Turkey

    R. Ebru Tirali & S. Burcak Cehreli

  3. Department of Medical Microbiology, Faculty of Medicine, Ankara University, Ankara, Turkey

    Zeynep Ceren Karahan & Emel Uzunoglu

  4. Department of Histology and Embryology, Faculty of Medicine, Ankara University, Ankara, Turkey

    Bizden Sabuncuoglu

Authors
  1. Kamran Gulsahi
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  2. R. Ebru Tirali
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  3. S. Burcak Cehreli
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  4. Zeynep Ceren Karahan
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  5. Emel Uzunoglu
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Correspondence to R. Ebru Tirali.

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Gulsahi, K., Tirali, R.E., Cehreli, S.B. et al. The effect of temperature and contact time of sodium hypochlorite on human roots infected with Enterococcus faecalis and Candida albicans . Odontology 102, 36–41 (2014). https://doi.org/10.1007/s10266-012-0086-x

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  • DOI: https://doi.org/10.1007/s10266-012-0086-x

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