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REVIEW ARTICLE
Year : 2022  |  Volume : 12  |  Issue : 1  |  Page : 9-16

The effectiveness of reciprocating instruments in the removal of root filling materials: A systematic review


1 Department of Conservative Dentistry, College of Dentistry, Mustansiriyah University, Baghdad, Iraq
2 Department of Conservative Dentistry, Ministry of Health, Baghdad, Iraq

Correspondence Address:
Mustafa Tariq Mutar
Department of Conservative Dentistry, Ministry of Health, Baghdad
Iraq
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/sej.sej_151_21

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Introduction: Re-establishing the health of the periapical tissues is considered to be the main objective of nonsurgical root canal retreatment in cases with posttreatment disease. Removal of filling material from the canal space is the most difficult and challenging step during retreatment, regardless of the technique/instrument used. The aim of this study was to determine the effectiveness of nickel–titanium reciprocating instruments in the removal of root canal filling material in comparison with continuous rotary shaping and retreatment instruments. Materials and Methods: Four electronic databases were used (PubMed, Google Scholar, ScienceDirect, and Scopus) as information sources. Articles describing in vitro studies carried out on extracted human teeth were included in this systematic review, while narrative, systematic review, in vivo studies, animal studies, studies published in languages other than English, and studies that used methods other than micro-computed tomography to detect root filling material were excluded from this systematic review. The studies were assessed for eligibility according to inclusion criteria by two independent reviewers; the opinion of the third reviewer was requested when one of the reviewers did not accept the study to be included. Results: Forty-one studies of 560 titles and abstracts screened were selected for full-text analysis; 26 studies were excluded, and 15 studies were included in this systematic review. Eleven studies (73%) showed a nonsignificant difference between reciprocating and rotary instruments. Conclusions: The collected studies showed no effect of motion (either reciprocation or full rotary motion) on the remnant of root canal filling materials.


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