11
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Effectiveness of 2% peracetic acid for the disinfection of gutta-percha cones

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          The aim of this study was to evaluate the effectiveness of 2% peracetic acid for the disinfection of gutta-percha cones contaminated in vitro with Escherichia coli, Staphylococcus aureus, Streptococcus mutans, Candida albicans and Bacillus subtilus (in spore form). Two hundred and twenty-five gutta-percha cones were contaminated with standardized suspensions of each microorganism and incubated at 37°C for 24 h. The cones were divided into 10 experimental groups (n = 15), according to the microorganism tested and disinfection testing times. The disinfection procedure consisted of immersing each cone in a plastic tube containing the substance. The specimens remained in contact with the substance for 1 or 2.5 minutes. Afterwards, each cone was transferred to a 10% sodium thiosulphate solution (Na2S2O3) to neutralize the disinfectant. Microbial biofilms adhering to the cones were dispersed by agitation. Aliquots of 0.1 ml of the suspensions obtained were plated on Sabouraud dextrose agar, or brain and heart infusion agar, and incubated at 37°C for 24 h. The results were expressed in colony forming units (CFU/ml) and the data were submitted to the Wilcoxon Signed Rank Test (level of significance at 0.05). A significant reduction was observed, after 1 minute of exposure, in the test solution for C. albicans (p = 0.0190), S. aureus (p = 0.0001), S. mutans (p = 0.0001), B. subtilis (p = 0.0001), and E. coli (p = 0.0001). After 2.5 minutes of exposure, 100% of the microbial inocula were eliminated. It was concluded that the 2% peracetic acid solution was effective against the biofilms of the tested microorganisms on gutta-percha cones at 1 minute of exposure.

          Related collections

          Most cited references 20

          • Record: found
          • Abstract: not found
          • Article: not found

          Disinfection of artificially contaminated resilon cones with chlorhexidine and sodium hypochlorite at different time exposures

           A Dumani,  O Yoldas,  A Isci (2007)
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Brazilian gutta-percha points: Part I: chemical composition and X-ray diffraction analysis

              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Rapid decontamination of gutta-percha cones with sodium hypochlorite

                Bookmark

                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                bor
                Brazilian Oral Research
                Braz. oral res.
                Sociedade Brasileira de Pesquisa Odontológica - SBPqO (São Paulo )
                1807-3107
                February 2011
                : 25
                : 1
                : 23-27
                Affiliations
                [1 ] Universidade Estadual Paulista Brazil
                [2 ] Universidade Estadual Paulista Brazil
                Article
                S1806-83242011000100005
                10.1590/S1806-83242011000100005
                21359448
                Product
                Product Information: website
                Categories
                DENTISTRY, ORAL SURGERY & MEDICINE

                Dentistry

                Disinfection, Endodontics, Microbiology

                Comments

                Comment on this article