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Journals / 7tepe Klinik / 2021 / Cilt: 17 - Sayı: 3

Comparison of cyclic fatigue resistance of novel NiTi rotary instruments with low taper angle

Düşük taper açısına sahip güncel NiTi döner aletlerin döngüsel yorgunluk dirençlerinin kıyaslanması

Yahya Güven
Mehmet Ünal
Ahmet Demirhan Uygun
Pages
190–195
Publication Date
2022-09-03
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The group with the lowest resistance to cyclical fatigue was 2Shape files.

📌 3 Key Takeaways

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Objective & Hypothesis:Aim: The aim of this study is to compare the fracture resistance due to cyclic fatigue of K3XF, 2Shape and VDW.ROTATE NiTi rotary instruments with 25/.04 tip size and taper in artificial stainless steel canals with 60° and 90° curvature.
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Key Findings & Data:Materials and methods: In this study, a total of 90, 30 K3XF, 30 2Shape and 30 VDW.ROTATE files were used.
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Conclusion & Impact:The group with the lowest resistance to cyclical fatigue was 2Shape files.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Aim: The aim of this study is to compare the fracture resistance due to cyclic fatigue of K3XF, 2Shape and VDW.ROTATE NiTi rotary instruments with 25/.04 tip size and taper in artificial stainless steel canals with 60° and 90° curvature. Materials and methods: In this study, a total of 90, 30 K3XF, 30 2Shape and 30 VDW.ROTATE files were used. After the files were divided into two subgroups, they were subjected to cyclic fatigue resistance tests on artificial stainless steel channels with 60° and 90° angle of curvature and 3 mm radius of curvature. The time to fracture of the files were determined with the help of a digital stopwatch. The lengths of the fractured fragments were measured with a precision caliper. The data were analyzed statistically using Kruskal Wallis H-test and post hoc Tamhane T2 test (p 0.05). Conclusion: In this study, in which resistance to cyclic fatigue was examined, files with 4% taper were used. The VDW. ROTATE files had the highest fracture resistance against cyclic fatigue. The group with the lowest resistance to cyclical fatigue was 2Shape files.

Özet

Amaç: Bu çalışmanın amacı, 60° ve 90° eğimli kanallarda 25/.04 uç boyut ve taper açısına sahip K3XF, 2Shape ve VDW. ROTATE NiTi döner aletlerinin döngüsel yorgunluğa bağlı kırılma dirençlerinin karşılaştırılmasıdır. Gereç ve Yöntem: Bu çalışmada toplam 90 olmak üzere 30 adet K3XF, 30 adet 2Shape ve 30 adet VDW.ROTATE eğesi kullanıldı. Eğeler iki alt gruba ayrıldıktan sonra 60° ve 90° eğimli ve 3 mm eğim yarıçapına sahip yapay paslanmaz çelik kanallarda döngüsel yorgunluk direnç testine tabi tutuldu. Eğelerin kırılma zamanları bir dijital kronometre yardımıyla belirlendi. Kırık parçaların uzunlukları ise hassas kumpas yardımıyla ölçüldü. Veriler istatistiksel olarak Kruskal Wallis H-testi ve post hoc Tamhane T2 testi ile istatistiksel olarak incelendi (p 0.05). Sonuç: Döngüsel yorgunluğa karşı direncin incelendiği bu çalışmada %4 taper açısına sahip eğeler kullanılmıştır. VDW. ROTATE eğeleri döngüsel yorgunluğa karşı en yüksek kırılma direncine sahipti. 2Shape eğeleri döngüsel yorgunluğa karşı en düşük dirençli gruptu.

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Cite This Article

Güven, Y., Ünal, M., Uygun, A. D. (2022). Comparison of cyclic fatigue resistance of novel NiTi rotary instruments with low taper angle. 7tepe Klinik, Cilt: 17 - Sayı: 3, 190–195. https://ajindex.com/articles/426052

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