Open Access
Article

Influence of short-term cooling on the performance of superelastic and thermally-treated rotary NiTi files tested in dynamic cyclic fatigue model

Ammar AbuMostafa1,*,†,Mohammed Alfadaghem1,†
1
Department of Restorative Dentistry, Division of Endodontics, Riyadh Elm University, 13244 Riyadh, Saudi Arabia
DOI: 10.52586/5040 Volume 26 Issue 12, pp.1464-1469
Submited: 21 August 2021 Revised: 07 November 2021
Accepted: 15 November 2021 Published: 30 December 2021
*Corresponding Author(s):  
Ammar AbuMostafa
E-mail:  
ammarabumostafa@riyadh.edu.sa
These authors contributed equally.
Copyright: © 2021 The author(s). Published by BRI. This is an open access article under the CC BY 4.0 license (https://creativecommons.org/licenses/by/4.0/).
Abstract

Aim: The purpose of the present study was to investigate the effects of various short-term cooling durations on the performance of both superelastic and thermally treated nickel titanium (NiTi) files, tested in a dynamic cyclic fatigue model. Methodology: Superelastic RaCe (FKG, La Chaux-de-Fonds, Switzerland) and thermally treated RaCe EVO (FKG, La Chaux-de-Fonds, Switzerland) files of the same size and taper (25, 0.06) (n = 45 each) were tested using a dynamic cyclic fatigue model, where the number of cycles to failure (Nf) was measured at simulated body temperature. In each group, the samples were tested as received, after 5 seconds of cooling treatment, and after 15 seconds of cooling treatment (n = 15 each). Fractured file surfaces were investigated via scanning electron microscopy. Statistical analysis was performed using a one-way ANOVA with Scheffe’s post hoc test at a significance level of 0.05. Results: Significant differences in the Nf between the tested groups were found (p << 0.05) at each testing condition, where RaCe Evo files showed overall improved cyclic fatigue resistance. Only the RaCe groups at 5 second cooling showed significantly higher Nf than the control subgroup (p << 0.05). RaCe EVO group, showed no significant difference between the 3 subgroups (p >> 0.05). Scanning Electron Microscope (SEM) images revealed typical features of cyclic fatigue behavior in both groups. Conclusions: Short-term cooling application for 5 seconds on superelastic NiTi files showed an enhanced cyclic fatigue resistance.

Key words

Cooling; Dynamic cyclic fatigue; NiTi file; RaCe; RaCe EVO

References

[1] Otsuka K, Ren X. Physical metallurgy of Ti–Ni-based shape memory alloys. Progress in Materials Science. 2005; 50: 511–678.

[2] Peters OA. Current Challenges and Concepts in the Preparation of Root Canal Systems: a Review. Journal of Endodontics. 2004; 30: 559–567.

[3] Oliveira JP, Miranda RM, Fernandes FB. Welding and Joining of NiTi Shape Memory Alloys: a Review. Progress in Materials Science. 2017; 88: 412–466.

[4] Arens FC, Hoen MM, Steiman HR, Dietz GC Jr. Evaluation of Single-use Rotary Nickel-titanium Instruments. Journal of Endodontics. 2003; 29: 664–666.

[5] Zanza A, Seracchiani M, Di Nardo D, Reda R, Gambarini G, Testarelli L. A Paradigm Shift for Torsional Stiffness of Nickel Titanium Rotary Instruments: a Finite Element Analysis. Journal of Endodontics. 2021; 47: 1149–1156.

[6] Zhou H, Peng B, Zheng YF. An overview of the mechanical properties of nickel–titanium endodontic instruments. Endodontic Topics. 2013; 29: 42–54.

[7] Gao Y, Gutmann JL, Wilkinson K, Maxwell R, Ammon D. Evaluation of the impact of raw materials on the fatigue and mechanical properties of ProFile Vortex rotary instruments. Journal of Endodontics. 2012; 38: 398–401.

[8] Gutmann JL, Gao Y. Alteration in the inherent metallic and surface properties of nickel-titanium root canal instruments to enhance performance, durability and safety: a focused review. International Endodontic Journal. 2012; 45: 113–128.

[9] Hieawy A, Haapasalo M, Zhou H, Wang ZJ, Shen Y. Phase Transformation Behavior and Resistance to Bending and Cyclic Fatigue of ProTaper Gold and ProTaper Universal Instruments. Journal of Endodontics. 2015; 41: 1134–1138.

[10] Meling TR, Odegaard J. Short-term temperature changes influence the force exerted by superelastic nickel-titanium archwires activated in orthodontic bending. American Journal of Orthodontics and Dentofacial Orthopedics. 1998; 114: 503–509.

[11] de Hemptinne F, Slaus G, Vandendael M, Jacquet W, De Moor RJ, Bottenberg P. In Vivo Intracanal Temperature Evolution during Endodontic Treatment after the Injection of Room Temperature or Preheated Sodium Hypochlorite. Journal of Endodontics. 2015; 41: 1112–1115.

[12] Plotino G, Grande NM, Mercadé Bellido M, Testarelli L, Gambarini G. Influence of Temperature on Cyclic Fatigue Resistance of ProTaper Gold and ProTaper Universal Rotary Files. Journal of Endodontics. 2017; 43: 200–202.

[13] Grande NM, Plotino G, Silla E, Pedullà E, DeDeus G, Gambarini G, et al. Environmental Temperature Drastically Affects Flexural Fatigue Resistance of Nickel-titanium Rotary Files. Journal of Endodontics. 2017; 43: 1157–1160.

[14] Yao JH, Schwartz SA, Beeson TJ. Cyclic Fatigue of Three Types of Rotary Nickel-Titanium Files in a Dynamic Model. Journal of Endodontics. 2006; 32: 55–57.

[15] Pruett JP, Clement DJ, Carnes DLJ. Cyclic fatigue testing of nickel-titanium endodontic instruments. Journal of Endodontics. 1997; 23: 77–85.

[16] Haïkel Y, Serfaty R, Bateman G, Senger B, Allemann C. Dynamic and cyclic fatigue of engine-driven rotary nickel-titanium endodontic instruments. Journal of Endodontics. 1999; 25: 434–440.

[17] Dederich DN, Zakariasen KL. The effects of cyclical axial motion on rotary endodontic instrument fatigue. Oral Surgery, Oral Medicine, and Oral Pathology. 1986; 61: 192–196.

[18] Lopes HP, Elias CN, Vieira MVB, Siqueira JFJ, Mangelli M, Lopes WSP, et al. Fatigue Life of Reciproc and Mtwo Instruments Subjected to Static and Dynamic Tests. Journal of Endodontics. 2013; 39: 693–696.

[19] Li UM, Lee BS, Shih CT, Lan WH, Lin CP. Cyclic fatigue of endodontic nickel titanium rotary instruments: static and dynamic tests. Journal of Endodontics. 2002; 28: 448–451.

[20] Jamleh A, Yahata Y, Ebihara A, Atmeh AR, Bakhsh T, Suda H. Performance of NiTi endodontic instrument under different temperatures. Odontology. 2016; 104: 324–328.

[21] Dosanjh A, Paurazas S, Askar M. The Effect of Temperature on Cyclic Fatigue of Nickel-titanium Rotary Endodontic Instruments. Journal of Endodontics. 2017; 43: 823–826.

[22] Shen Y, Zhou H, Zheng Y, Peng B, Haapasalo M. Current Challenges and Concepts of the Thermomechanical Treatment of Nickel-Titanium Instruments. Journal of Endodontics. 2013; 39: 163–172.

[23] Mahesh KK, Fernandes FB, Silva RJ. Ageing effects on phase transformations in NiTi alloys. European Symposium on Martensitic Transformations. EDP Sciences. 2009; 05014.

[24] Shen Y, Huang X, Wang Z, Wei X, Haapasalo M. Low Environmental Temperature Influences the Fatigue Resistance of Nickeltitanium Files. Journal of Endodontics. 2018; 44: 626–629.

[25] Alapati SB, Brantley WA, Iijima M, Schricker SR, Nusstein JM, Li UM, et al. Micro-XRD and temperature-modulated DSC investigation of nickel-titanium rotary endodontic instruments. Dental Materials. 2009; 25: 1221–1229.

[26] Inan U, Keskin C, Sivas Yilmaz Ö, Baş G. Cyclic fatigue of Reciproc Blue and Reciproc instruments exposed to intracanal temperature in simulated severe apical curvature. Clinical Oral Investigations. 2019; 23: 2077–2082.

[27] Keskin C, Inan U, Demiral M, Keleş A. Cyclic Fatigue Resistance of Reciproc Blue, Reciproc, and WaveOne Gold Reciprocating Instruments. Journal of Endodontics. 2017; 43: 1360–1363.

[28] Bhandi S, Seracchiani M, Donfrancesco O, Reda R, Mazzoni A, Nottola S, et al. Nickel-Titanium Rotary Instruments: An In Vitro Comparison (Torsional Resistance of Two Heat-treated Reciprocating Files). The Journal of Contemporary Dental Practice. 2021; 22: 361–364.

[29] Jamleh A, Alghaihab A, Alfadley A, Alfawaz H, Alqedairi A, Alfouzan K. Cyclic Fatigue and Torsional Failure of EdgeTaper Platinum Endodontic Files at Simulated Body Temperature. Journal of Endodontics. 2019; 45: 611–614.

[30] Spini TS, Valarelli FP, Cançado RH, Freitas KM, Villarinho DJ. Transition temperature range of thermally activated nickeltitanium archwires. Journal of Applied Oral Science. 2014; 22: 109–117.

[31] Burroughs JR, Bergeron BE, Roberts MD, Hagan JL, Himel VT. Shaping Ability of Three Nickel-Titanium Endodontic File Systems in Simulated S-shaped Root Canals. Journal of Endodontics. 2012; 38: 1618–1621.

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Ammar AbuMostafa, Mohammed Alfadaghem. Influence of short-term cooling on the performance of superelastic and thermally-treated rotary NiTi files tested in dynamic cyclic fatigue model. Frontiers in Bioscience-Landmark. 2021. 26(12); 1464-1469.