Sealing efficacy of mineral trioxide aggregate with and without nanosilver for root end filling: an in vitro bacterial leakage study

• Mahsa Eskandarinezhad ^[1] ; Naiemeh Shahveghar-Asl ^[2] ; Reza Sharghi ^[2] ; Sajjad Shirazi ^[3] ; Sahar Shakouie ^[1] ; Amin-Salem Milani ^[1] ; Esrafil Balaei ^[1]
  1. [1] Tabriz University of Medical Sciences

     Tabriz University of Medical Sciences

     Irán

     
  2. [2] Qazvin University of Medical Sciences

     Qazvin University of Medical Sciences

     Irán

     
  3. [3] Research Fellow and Lecturer, Dental and Periodontal Research Center, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran; Assistant Professor, Department of Community Dentistry, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran

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• Localización: Journal of Clinical and Experimental Dentistry, ISSN-e 1989-5488, Vol. 9, Nº. 1 (Febrero), 2017, págs. 27-33
• Idioma: inglés
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• Resumen

  • Various materials have been added to mineral trioxide aggregate to enhance its properties. This study was aimed to compare the sealing efficacy of MTA with and without nanosilver using bacterial leakage approach.

    Seventy canine teeth were prepared and obturated. Then, after apical resection, the root-end cavities were prepared by ultrasonic retrotips. Teeth were randomly divided into 4 groups containing two experimental groups (n=30) and two negative and positive controls (n=5). In group 1 and 2, root-end cavities were respectively filled with MTA and MTA with nanosilver (by 1% weight). Leakage assessment was carried out by bacterial leakage apparatus with Enterococcus faecalis species. Leakage comparison between experimental groups was done using Mann-Whitney test by Spss 16 software at significancy level of 0.05.

    The median bacterial leakages for MTA and MTA with nanosilver were 19 and 2, respectively. The mean bacterial leakages for MTA and MTA with nanosilver were 30.06±28.67 and 9.66±14.25, respectively. Mann-Whitney test indicated that there was a significant difference in bacterial leakage day between two experimental groups (P=0.002).

    Based on the findings of this in-vitro bacterial leakage study, adding nanosilver to MTA decreased its sealing ability.