Change In Resistance To Cyclic Fatigue Of Nickel-Titanium Files Exposed To Sodium Hypochlorite

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Change In Resistance To Cyclic Fatigue Of Nickel-Titanium Files Exposed To Sodium Hypochlorite

Journal Title: Uluslararası Dis Hekimligi Bilimleri Dergisi - Year 2024, Vol 10, Issue 2

Abstract

Objective: This study aimed to assess the alterations in cyclic fatigue resistance of two types of nickel-titanium (NiTi) rotary files, both with and without CE certification, in their initial condition and after being subjected to 5% sodium hypochlorite (NaOCl) solutions for a duration of 5 minutes. Materials and Method: In this study, 32 new NiTi files of two types (V3-M size 25.04 and R-Shaper size 25.04), with and without a CE certificate, were used. The files were divided into groups of 16, with and without the CE certificate. These groups were further divided into two subgroups (n=8): new files and files exposed to 5% NaOCl for 5 minutes for sterilization. The cyclic fatigue resistance of the files was measured using a specially designed test device. The SPSS 22.0 Software Package (SPSS 22.0 Software Package Program, Inc., Chicago, IL, USA) was used to compare the cyclic fatigue resistance of the files. A significance level of p<0.05 was accepted. Results: When comparing the cyclic fatigue resistance of two different file groups before and after exposure, there was no significant difference between the pre-exposure and post-exposure values for the R-shaper file (p=0.74). However, for the V3-m type file, no statistically significant difference was found between the pre-exposure and post-exposure values (p<0.05). Conclusion: The cyclic fatigue resistance of NiTi rotary files with CE certification remained unaffected after exposure to 5% NaOCl, while the files without CE certification showed changes in their cyclic resistance. Therefore, we believe that the use of NiTi files with CE certification is of significant importance.

Authors and Affiliations

Emre Bodrumlu , Abdullah A. M. Obaid

Keywords

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EP ID EP743570
DOI https://doi.org/10.21306/dishekimligi.1509849
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