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Information Journal Paper

Title

Bacterial Reduction after Gutta-Percha Removal with Single and Multiple Instrument Systems

Pages

  176-180

Abstract

 Introduction: The aim of this study was to evaluate the effectiveness of a reciprocating singleinstrument system (Reciproc-REC) compared with combined continuously rotating multipleinstrument systems [D-Race (DR) and BioRace (BR)] in reducing Enterococcus faecalis (E. f. ) after gutta-percha removal. Methods and Materials: Forty-six extracted human maxillary incisors were prepared and contaminated with E. f. strain (ATCC 29212) for 30 days. The samples were obturated and randomly divided into two experimental groups for gutta-percha removal (n=23): a REC group (R50) and a DR/BR group (DR1, DR2 and BR6). A standardized irrigation with 0. 9% saline solution was performed. Root canal samples were taken with paper points before (S1) and after (S2) the removal of gutta-percha to establish bacterial quantification by culture. The time required for gutta-percha removal was also recorded. Positive and negative control groups (n=6) were used to test bacterial viability and control asepsis, respectively. Data were analysed using t-Student and one-way ANOVA tests (5% margin of error). Results: The mean percentage of bacterial reduction was significantly higher in DR/BR group (84. 2%) than in REC group (72. 3%) (P<0. 05). The mean time for obturation removal was 74. 00 sec in REC group and 107. 53 sec in DR/BR group (P<0. 05). Conclusion: The combined continuously rotating multiple-instrument system was more effective in reducing bacteria after the removal of gutta-percha than the single-instrument system. None of the tested systems was able to completely eliminate root canal infection after gutta-percha removal. Thus, additional techniques should be considered.

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    • Cite

    APA: Copy

    XAVIER, FELIPE, NEVARES, GISELLE, Gominho, Luciana, Rodrigues, Renata, Cassimiro Kaline Romeiro, Marcely, & ALBUQUERQUE, DIANA. (2018). Bacterial Reduction after Gutta-Percha Removal with Single and Multiple Instrument Systems. IRANIAN ENDODONTIC JOURNAL (IEJ), 13(2), 176-180. SID. https://sid.ir/paper/303062/en

    Vancouver: Copy

    XAVIER FELIPE, NEVARES GISELLE, Gominho Luciana, Rodrigues Renata, Cassimiro Kaline Romeiro Marcely, ALBUQUERQUE DIANA. Bacterial Reduction after Gutta-Percha Removal with Single and Multiple Instrument Systems. IRANIAN ENDODONTIC JOURNAL (IEJ)[Internet]. 2018;13(2):176-180. Available from: https://sid.ir/paper/303062/en

    IEEE: Copy

    FELIPE XAVIER, GISELLE NEVARES, Luciana Gominho, Renata Rodrigues, Marcely Cassimiro Kaline Romeiro, and DIANA ALBUQUERQUE, “Bacterial Reduction after Gutta-Percha Removal with Single and Multiple Instrument Systems,” IRANIAN ENDODONTIC JOURNAL (IEJ), vol. 13, no. 2, pp. 176–180, 2018, [Online]. Available: https://sid.ir/paper/303062/en

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