Influence of the Geometrical Cross-Section Design on the Dynamic Cyclic Fatigue Resistance of NiTi Endodontic Rotary Files-An In Vitro Study

Overview

Journal J Clin Med

Specialty General Medicine

Date 2021 Oct 23

PMID 34682836

Citations 6

Authors

Vicente Faus-Llacer

Nirmine Hamoud-Kharrat

Maria Teresa Marhuenda Ramos

Ignacio Faus-Matoses

Alvaro Zubizarreta-Macho

Celia Ruiz Sanchez

Vicente Faus-Matoses

Affiliations

Soon will be listed here.

Abstract

Materials And Methods: Forty sterile endodontic rotary files were selected and distributed into the following study groups: A: 25.06 double S-shaped cross-section NiTi alloy endodontic rotary files (Mtwo) ( = 10); B: 20.04 rectangular cross-section NiTi alloy endodontic rotary files (T Pro E1) ( = 10); C: 25.04 convex triangular cross-section NiTi alloy endodontic rotary files (T Pro E2) ( = 10); and D: 25.06 triangular cross-section NiTi alloy endodontic rotary files (T Pro E4) ( = 10). A cyclic fatigue device was used to conduct the static cyclic fatigue tests with stainless steel artificial root canal systems with 200 µm and 250 µm apical diameter, 60° curvature angle, 3 mm radius of curvature, 20 mm length, and 4% and 8% taper. The results were analyzed using the ANOVA test and Weibull statistical analysis.

Results: All the pairwise comparisons presented statistically significant differences between the time to failure and number of cycles to failure for the cross-section design study groups ( < 0.001).

Conclusions: the double S-shaped cross-section of Mtwo NiTi endodontic files shows higher cyclic fatigue resistance than the rectangular cross-section of T Pro E1 NiTi endodontic files, the convex triangular cross-section of T Pro E2 NiTi endodontic files, and the triangular cross-section of T Pro E4 NiTi endodontic files.

Citing Articles

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Burklein S, Massmann P, Schafer E, Donnermeyer D Materials (Basel). 2024; 17(4).

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Effect of Stabilized Martensite on the Long-Term Performance of Superelastic NiTi Endodontic Files.

Sanchez P, Vidi B, Mena-Alvarez J, Gil J, Rico C, Aragoneses J Materials (Basel). 2023; 16(11).

PMID: 37297223 PMC: 10254520. DOI: 10.3390/ma16114089.

3D Surface Scanning-A Novel Protocol to Characterize Virtual Nickel-Titanium Endodontic Instruments.

Martins J, Pinto R, Silva E, Simoes-Carvalho M, Marques D, Martins R Materials (Basel). 2023; 16(10).

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Cyclic fatigue resistance of EdgeTaper Platinum, Protaper Gold, and TruNatomy Prime rotary files before and after autoclave sterilization.

Almohareb R, Barakat R, Algahtani F, Alkadi M PeerJ. 2023; 11:e14656.

PMID: 36700004 PMC: 9869776. DOI: 10.7717/peerj.14656.

Effect of Rotational Speed on the Resistance of NiTi Alloy Endodontic Rotary Files to Cyclic Fatigue-An In Vitro Study.

Faus-Matoses V, Faus-Llacer V, Ruiz-Sanchez C, Jaramillo-Vasconez S, Faus-Matoses I, Martin-Biedma B J Clin Med. 2022; 11(11).

PMID: 35683530 PMC: 9181116. DOI: 10.3390/jcm11113143.

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