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J Dent Res Dent Clin Dent Prospects. 2021;15(4): 273-278.
doi: 10.34172/joddd.2021.045
PMID: 35070182
PMCID: PMC8760381
Scopus ID: 85125633552
  Abstract View: 642
  PDF Download: 398
  Full Text View: 219

Basic Research

Original Article

Effectiveness of different rotary file systems in removing the root canal filling material: A micro-computed tomography study

Esin Özlek 1* ORCID logo, Hüseyin Gündüz 1 ORCID logo

1 Department of Endodontics, Faculty of Dentistry, Van Yuzuncu Yıl University, Van, Turkey
*Corresponding Author: *Corresponding author: Esin Özlek, Email: , Email: e.ozlek@yyu.edu.tr

Abstract

Background. This study aimed to examine the retreatment efficiency of four NiTi rotary file systems with micro-computed tomography (micro-CT).

Methods. Forty premolar teeth were shaped up to F2 using the ProTaper Universal rotary file system and obturated with MTA Fillapex. The root canals were scanned with micro-CT to evaluate the volume of root canal filling before retreatment. The samples were randomly divided into four groups according to the file system used to remove root canal filling material (n=10): ProTaper Universal Retreatment, ProTaper NEXT, EdgeFile XR, and EdgeFile® X3 NiTi system. All the samples were scanned with a micro-CT device for the second time to evaluate the amount of residual filling material in the root canals. The percentages of filling material removed from root canals were calculated. Additionally, the time spent on the removal of the root canal filling material was recorded. The data were analyzed using the Shapiro-Wilk and Kruskal-Wallis tests.

Results. There were no significant differences between the groups in the percentage of root canal filling material removal. However, a statistically significant difference was found between the groups in the time required to reach the apex and remove the entire filling material. The time required to remove the root canal filling material was higher in the EdgeFile® X3 group.

Conclusion. NiTi files manufactured for root canal preparation can be used effectively and safely to remove root canal filling materials. EdgeFile XR produced for retreatment can be used as an alternative to ProTaper Universal Retreatment files.




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Abstract View: 643

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Submitted: 03 Apr 2020
Accepted: 07 Aug 2020
ePublished: 05 Dec 2021
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