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  • Research Article
    Comparative analysis of torsional and cyclic fatigue resistance of ProGlider, WaveOne Gold Glider, and TruNatomy Glider in simulated curved canal
    Pedro de Souza Dias, Augusto Shoji Kato, Carlos Eduardo da Silveira Bueno, Rodrigo Ricci Vivan, Marco Antonio Hungaro Duarte, Pedro Henrique Souza Calefi, Rina Andréa Pelegrine
    Restor Dent Endod 2023;48(1):e4.   Published online December 8, 2022
    DOI: https://doi.org/10.5395/rde.2023.48.e4
    AbstractAbstract PDFPubReaderePub
    Objectives

    This study aimed to compare the torsional and cyclic fatigue resistance of ProGlider (PG), WaveOne Gold Glider (WGG), and TruNatomy Glider (TNG).

    Materials and Methods

    A total of 15 instruments of each glide path system (n = 15) were used for each test. A custom-made device simulating an angle of 90° and a radius of 5 millimeters was used to assess cyclic fatigue resistance, with calculation of number of cycles to failure. Torsional fatigue resistance was assessed by maximum torque and angle of rotation. Fractured instruments were examined by scanning electron microscopy (SEM). Data were analyzed with Shapiro-Wilk and Kruskal-Wallis tests, and the significance level was set at 5%.

    Results

    The WGG group showed greater cyclic fatigue resistance than the PG and TNG groups (p < 0.05). In the torsional fatigue test, the TNG group showed a higher angle of rotation, followed by the PG and WGG groups (p < 0.05). The TNG group was superior to the PG group in torsional resistance (p < 0.05). SEM analysis revealed ductile morphology, typical of the 2 fracture modes: cyclic fatigue and torsional fatigue.

    Conclusions

    Reciprocating WGG instruments showed greater cyclic fatigue resistance, while TNG instruments were better in torsional fatigue resistance. The significance of these findings lies in the identification of the instruments’ clinical applicability to guide the choice of the most appropriate instrument and enable the clinician to provide a more predictable glide path preparation.

    Citations

    Citations to this article as recorded by  
    • Buckling resistance of various pathfinding endodontic instruments: An in vitro study
      Ujjwal Das, Rajesh Kumar Das, Kallol Kumar Saha, Lugu Buru Murmu, Srimanta Banerjee, Rishila Nag
      Journal of Conservative Dentistry and Endodontics.2025; 28(4): 384.     CrossRef
    • Comparative evaluation of the remaining dentin volume following instrumentation with rotary, reciprocating, and hand files during root canal treatment in primary molars: An ex vivo study
      İrem Eren, Berkant Sezer
      Journal of Dental Sciences.2024; 19(4): 2126.     CrossRef
    • Screw-in force, torque generation, and performance of glide-path files with three rotation kinetics
      Jee-Yeon Woo, Ji-Hyun Jang, Seok Woo Chang, Soram Oh
      Odontology.2024; 112(3): 761.     CrossRef
    • Evaluation of shaping ability of different glide path instruments: a micro-computed tomography study
      Merve Yeniçeri Özata, Seda Falakaloğlu, Ali Keleş, Özkan Adıgüzel, Mustafa Gündoğar
      BMC Oral Health.2023;[Epub]     CrossRef
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