Iranian Endodontic Journal

Vol. 16 No. 1 (2021)

Comparison of Mechanical and Structural Properties of Nickel-titanium Alloy with Titanium-molybdenum Alloy and Titanium-niobium Alloy as Potential Metals for Endodontic Files

Iranian Endodontic Journal, Vol. 16 No. 1 (2021), 1 January 2021 , Page 49-55
https://doi.org/10.22037/iej.v16i1.24048

Abstract

Introduction: The objective of this study was to compare the mechanical and structural properties of the nickel-titanium (Ni-Ti) alloy already used in endodontics with titanium-molybdenum (Ti-Mo) and titanium-niobium (Ti-Nb) alloys to determine if these can be suggested in the manufacture of endodontic files. Methods and Materials: Orthodontic wires made of the different alloys were used. The previously mentioned alloys were characterized by energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD) and torsion tests. Cyclic fatigue tests were performed on a simulated canal with a curvature of 86° to 375 rpm. The fractured surfaces of the wires were observed by means of scanning electron microscopy (SEM). A Kruskal-Wallis test and U Mann Whitney test were used to determine significant differences in cyclic fatigue between groups. Results: In the mechanical tests, similar values of torsion were found for the three alloys. In XRD, the Ti-Nb showed less structural changes. In the cyclic fatigue test, Ti-Nb was found to be significantly more resistant with respect to Ni-Ti and Ti-Mo. Conclusion: Based on our in vitro study, Ti-Nb is suggested as a possible alloy for the manufacture of rotary files due to its impressive properties.

Keywords:
  • Cyclic Fatigue; Nickel-titanium; Rotary Files; Titanium-molybdenum; Titanium-niobium

How to Cite

1.
Nino-Barrera JL, Aldana-Ojeda L, Gamboa-Martinez LF, Acosta-Humanez M, Silva-Castellanos C, Cortes-Rodriguez CJ. Comparison of Mechanical and Structural Properties of Nickel-titanium Alloy with Titanium-molybdenum Alloy and Titanium-niobium Alloy as Potential Metals for Endodontic Files. Iran Endod J [Internet]. 2021 Jan. 1 [cited 2026 Jun. 12];16(1):49-55. Available from: https://journals.sbmu.ac.ir/iej/article/view/24048

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