Cyclic Fatigue Resistance of Protaper Gold, HyFlex EDM and K3XF Rotary Instruments
El-Tayeb, M., Nabeel, M. (2022). Cyclic Fatigue Resistance of Protaper Gold, HyFlex EDM and K3XF Rotary Instruments. EKB Journal Management System, 27(3), 61-67. doi: 10.21608/asdj.2023.244821.1191
Mohamed M.N. El-Tayeb; Mohamed Nabeel. "Cyclic Fatigue Resistance of Protaper Gold, HyFlex EDM and K3XF Rotary Instruments". EKB Journal Management System, 27, 3, 2022, 61-67. doi: 10.21608/asdj.2023.244821.1191
El-Tayeb, M., Nabeel, M. (2022). 'Cyclic Fatigue Resistance of Protaper Gold, HyFlex EDM and K3XF Rotary Instruments', EKB Journal Management System, 27(3), pp. 61-67. doi: 10.21608/asdj.2023.244821.1191
El-Tayeb, M., Nabeel, M. Cyclic Fatigue Resistance of Protaper Gold, HyFlex EDM and K3XF Rotary Instruments. EKB Journal Management System, 2022; 27(3): 61-67. doi: 10.21608/asdj.2023.244821.1191

Cyclic Fatigue Resistance of Protaper Gold, HyFlex EDM and K3XF Rotary Instruments

Ain Shams Dental Journal
Volume 27, Issue 3, September 2022, Page 61-67  XML PDF (1.58 MB)
Document Type: Original articles
DOI: 10.21608/asdj.2023.244821.1191
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Authors
Mohamed M.N. El-Tayeb email orcid 1; Mohamed Nabeelorcid 2
1Department of Endodontics, Faculty of Oral and Dental Medicine, Badr University in Cairo, Cairo, Egypt
2Department of Endodontic, Faculty of Dental and Oral Medicine, International University, Cairo, Egypt
Abstract
Abstract
Aim: The aim of the present study was to evaluate the resistance to cyclic fatigue of different nickel-titanium (NiTi) rotary instruments. The tested instruments were Protaper Gold (PTG), HyFlex EDM (HEDM) and K3XF.
Materials & Methods: A total of forty-five NiTi rotary instruments were divided into three experimental groups (n = 15 each). Group 1: Protaper Gold (F2 25/.08), group 2: HyFlex EDM (25/.08) file and group 3: K3XF file (25/.08). The testing device was specially designed for this experiment. The cycles to failure were calculated. The data were statistically analyzed using one-way analysis of variance (p < 0.05).
Results: The results revealed that HyFlex EDM showed statistically significant highest mean cyclic fatigue value, while K3XF showed statistically significant lower mean cyclic fatigue value. Protaper Gold system showed statistically significant lowest mean cyclic fatigue value.

Conclusions: The geometrical design features and mode of manufacturing of the tested nickel-titanium rotary systems have a direct influence on their resistance to cyclic fatigue. HyFlex EDM files demonstrated significantly higher cyclic fatigue resistance than Protaper Gold and K3XF. The electrical discharge machining (EDM) technology and the unique cross section of HyFlex EDM may be the main reason for this difference.
Keywords
Cyclic Fatigue; Protaper Gold; HyFlex EDM; K3XF
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