Volume 49, Issue S1 pp. 33-40
ORIGINAL RESEARCH

Apically extruded debris of different file systems used with various kinematic movements during retreatment: An in vitro study

Tuğba Koşar DDS, MSc

Corresponding Author

Tuğba Koşar DDS, MSc

Department of Endodontics, Faculty of Dentistry, Karadeniz Technical University, Trabzon, Turkey

This study was presented as a poster at the 20th Scientific Congress of the Asian Pacific Endodontic Confederation and the14th International Congress of Turkish Endodontic Society (24–27 April 2019, Istanbul, Turkey).

Correspondence

Tuğba Koşar, Department of Endodontics, Faculty of Dentistry, Karadeniz Technical University, 61080, Ortahisar, Trabzon, Turkey.

Email: [email protected]

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Davut Çelik DDS, PhD

Davut Çelik DDS, PhD

Department of Endodontics, Faculty of Dentistry, Karadeniz Technical University, Trabzon, Turkey

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Tamer Taşdemir DDS, PhD

Tamer Taşdemir DDS, PhD

Department of Endodontics, Faculty of Dentistry, Karadeniz Technical University, Trabzon, Turkey

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First published: 20 September 2022

Abstract

This study aimed to examine the amount of apically extruded debris and time during retreatment with five current file systems, which exhibit various kinematic movements. One hundred upper central incisors were shaped with manual files and filled using the thermoplastic injection method. The root canal fillings in each group (n = 20) were removed using the Genius (GN), ProTaper Next (PTN), Reciproc (RCP) Blue, Tango-Endo (TE) and Twisted File Adaptive (TFA) file systems. The apically extruded debris was collected in preweighed Eppendorf tubes. Time to reach working length and total time were also recorded. The PTN, RCP Blue and TFA instruments caused significantly less apically extruded debris and shorter total retreatment time than the GN and TE file systems (p < 0.05). The time to reach the working length was the shortest in the PTN group compared to the other groups (p < 0.05). All file systems extruded debris while removing the root canal filling.

CONFLICT OF INTEREST

The authors deny any conflicts of interest related to this study.

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