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CC BY-NC-ND 4.0 · Eur J Dent 2016; 10(02): 210-214
DOI: 10.4103/1305-7456.178306
Original Article
Dental Investigation Society

Impact of different file systems on the amount of apically extruded debris during endodontic retreatment

Emel Uzunoglu
1   Department of Endodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkiye
,
Sevinc Aktemur Turker
2   Department of Endodontics, Faculty of Dentistry, Bülent Ecevit University, Zonguldak, Turkiye
› Author Affiliations
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Publication History

Publication Date:
23 September 2019 (online)

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ABSTRACT

Objective: The goal of present study was to determine the effect of different nickel–titanium file systems on the amount of apically extruded debris during endodontic retreatment: D-RaCe retreatment systems, EdgeFile XR retreatment rotary files, and Reciproc R40. Materials and Methods: Thirty-six single-rooted prepared mandibular premolar teeth were filled with Gutta-percha and AH Plus sealer. The teeth were then randomly assigned into three groups (n = 12) for retreatment. The endodontic retreatment was performed as follows: D-RaCe, EdgeFile XR, Reciproc 40. Debris extruded apically during the retreatment was collected into preweighed Eppendorf tubes. An incubator was used to store tubes at 70°C for 5 days. The initial weight was subtracted from final weight of the Eppendorf tubes to calculate the weight of the dry extruded debris for each group. The data obtained were evaluated using Welch analysis of variance and Games-Howell post-hoc tests (P < 0.05). Results: All files resulted in apical extrusion of debris. Reciproc caused significantly less debris extrusion compared to D-RaCe and EdgeFile XR (P < 0.05). Conclusions: The findings revealed that during endodontic retreatment, number, and taper of files might have an influence on the amount of apically extruded debris during endodontic retreatment.

Key words:

Endodontics - nickel–titanium alloy - retreatment
 

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