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. 2023 Summer;17(3):136-141.
doi: 10.34172/joddd.2023.39271. Epub 2023 Nov 11.

In vitro apical extrusion of debris and instrumentation time following root canal instrumentation with Reciproc and Reciproc Blue instruments and a novel stainless steel rotary system (Gentlefile) versus manual instrumentation

Ahmad Nouroloyouni  1 , Shahriar Shahi  2 , Amin Salem Milani  2 , Sara Noorolouny  3 , Robab Farhang  1 , Aysan Yousefi Azar  1
Affiliations

In vitro apical extrusion of debris and instrumentation time following root canal instrumentation with Reciproc and Reciproc Blue instruments and a novel stainless steel rotary system (Gentlefile) versus manual instrumentation

Ahmad Nouroloyouni et al. J Dent Res Dent Clin Dent Prospects. 2023 Summer.

Abstract

Background: This study compared apical extrusion of debris and instrumentation time following root canal instrumentation with Reciproc, Reciproc Blue, and Gentlefile (GF) rotary instruments versus the manual step-back technique.

Methods: This in vitro study was conducted on 80 extracted mandibular premolars with mature apices and a root curvature of<10°. The teeth were randomly assigned to 4 groups (n=20), standardized regarding working length, and placed in pre-weighed vials. The root canals were instrumented with Reciproc, Reciproc Blue, and GF systems and the manual step-back technique in the four groups. The vials containing the collected debris were then dried and weighed. The instrumentation time was also recorded for each group. Data were analyzed with one-way ANOVA and post hoc Games-Howell test (α=0.05).

Results: Minimum apical debris extrusion was noted in Reciproc, followed by Reciproc Blue, GF, and manual technique (P<0.05). Pairwise comparisons showed significantly lower apical extrusion of debris in the Reciproc compared with GF (P=0.015) and manual instrumentation (P=0.011) groups. The Reciproc system also had the shortest instrumentation time, followed by Reciproc Blue, GF, and manual instrumentation (P<0.05). Pairwise comparisons showed significant differences between all the systems (P<0.05) except between Reciproc and Reciproc Blue (P>0.05) in this respect.

Conclusion: Although all systems caused apical extrusion of debris, manual instrumentation caused maximum extrusion of debris. In contrast, the Reciproc system was superior to others regarding minimal apical extrusion of debris and the shortest instrumentation time.

Keywords: Root canal preparation; Root canal therapy; Tooth apex.

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Conflict of interest statement

The authors declare that she has no known competing financial interests or personal relationships that could have influenced the work reported in this paper.

References

    1. Peters OA. Current challenges and concepts in the preparation of root canal systems: a review. J Endod. 2004;30(8):559–67. doi: 10.1097/01.don.0000129039.59003.9d. - DOI - PubMed
    1. Calberson FL, Deroose CA, Hommez GM, De Moor RJ. Shaping ability of ProTaper nickel-titanium files in simulated resin root canals. Int Endod J. 2004;37(9):613–23. doi: 10.1111/j.1365-2591.2004.00860.x. - DOI - PubMed
    1. Siqueira JF Jr. Microbial causes of endodontic flare-ups. Int Endod J. 2003;36(7):453–63. doi: 10.1046/j.1365-2591.2003.00671.x. - DOI - PubMed
    1. Salem Milani A, Froughreyhani M, Taghiloo H, Nouroloyouni A, Asghari Jafarabadi M. The effect of antibiotic use on endodontic post-operative pain and flare-up rate: a systematic review with meta-analysis. Evid Based Dent. 2022. 10.1038/s41432-021-0205-z. - DOI - PubMed
    1. Nouroloyouni A, Lotfi M, Shahi S, Rahimi S, Noorolouny S, Salem Milani A. Postoperative pain after endodontic treatment of mandibular molars with two different instrumentation techniques: a randomized clinical trial. Dent Res J (Isfahan) 2023;20:83. - PMC - PubMed

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