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Comparative Study of the SEM Evaluation, EDX Assessment, Morphometric Analysis, and Cyclic Fatigue Resistance of Three Novel Brands of NiTi Alloy Endodontic Files

Author

Listed:
  • Vicente Faus-Matoses

    (Department of Stomatology, Faculty of Medicine and Dentistry, University of Valencia, 46010 Valencia, Spain)

  • Raúl Pérez García

    (Department of Stomatology, Faculty of Medicine and Dentistry, University of Valencia, 46010 Valencia, Spain)

  • Vicente Faus-Llácer

    (Department of Stomatology, Faculty of Medicine and Dentistry, University of Valencia, 46010 Valencia, Spain)

  • Ignacio Faus-Matoses

    (Department of Stomatology, Faculty of Medicine and Dentistry, University of Valencia, 46010 Valencia, Spain)

  • Óscar Alonso Ezpeleta

    (Department of Endodontics, School of Health Sciences, University of Zaragoza, 22006 Zaragoza, Spain)

  • Alberto Albaladejo Martínez

    (Department of Surgery, Faculty of Medicine and Dentistry, University of Salamanca, 37008 Salamanca, Spain)

  • Álvaro Zubizarreta-Macho

    (Department of Surgery, Faculty of Medicine and Dentistry, University of Salamanca, 37008 Salamanca, Spain
    Department of Endodontics, Faculty of Health Sciences, Alfonso X El Sabio University, 28691 Madrid, Spain
    Current address: Department of Implant Surgery, Faculty of Health Sciences, Alfonso X El Sabio University, Avda., Universidad, 1, 28691 Villanueva de la Cañada, Spain.)

Abstract

In this study, we compare and analyze the scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), morphometry and cyclic fatigue resistance of Endogal, PathMax, and Smarttrack novel brands of nickel–titanium (NiTi) alloy endodontic files. Material and Methods: Thirty sterile NiTi endodontic rotary files were randomly selected and assigned to one of the following study groups: A: 25.08 F2 Endogal (EDG) ( n = 10); B: 25.08 F2 Path Max Pro (PMP) ( n = 10); and C: 25.06 Smarttrack (ST) ( n = 10). Dynamic cyclic fatigue tests were conducted using a cyclic fatigue device in stainless steel artificial root canal systems with an apical diameter of 250 µm, curvature angle of 60°, radius of curvature of 3 mm, and taper of 6%. Additionally, we analyzed the NiTi endodontic rotary files using EDX, SEM, and morphometry after micro-CT scanning. The results were analyzed using Weibull statistical analysis and ANOVA testing. Results: SEM, EDX, and morphometric analyses showed differences between the three novel brands of NiTi endodontic rotary files. Moreover, statistically significant differences were observed between the number of cycles to failure and time to failure of the three novel brands of NiTi endodontic rotary files ( p < 0.001). Conclusions : Smarttrack NiTi alloy endodontic reciprocating files display greater resistance to cyclic fatigue than Endogal and Path Max Pro NiTi alloy endodontic rotary files, due to the reciprocating movement and metallurgical composition.

Suggested Citation

  • Vicente Faus-Matoses & Raúl Pérez García & Vicente Faus-Llácer & Ignacio Faus-Matoses & Óscar Alonso Ezpeleta & Alberto Albaladejo Martínez & Álvaro Zubizarreta-Macho, 2022. "Comparative Study of the SEM Evaluation, EDX Assessment, Morphometric Analysis, and Cyclic Fatigue Resistance of Three Novel Brands of NiTi Alloy Endodontic Files," IJERPH, MDPI, vol. 19(7), pages 1-13, April.
  • Handle: RePEc:gam:jijerp:v:19:y:2022:i:7:p:4414-:d:788332
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