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Evaluation of cyclic fatigue resistance of modern Nickel-Titanium rotary instruments with continuous rotation
- Source :
- Giornale Italiano di Endodonzia, Vol 31, Iss 2, Pp 78-82 (2017)
- Publication Year :
- 2017
- Publisher :
- PAGEPress Publications, 2017.
-
Abstract
- Aim The aim of present study was to compare cyclic fatigue resistance of three modern Ni–Ti instruments used with continuous rotation. Materials and methods For this study 3 groups of rotating instruments with continuous rotation (HyFlex EDM, Twisted File Adaptive, Revo S SU) have been used, each group consisted of 20 files. The various groups were subjected to cyclic fatigue testing through an artificial metal device. A statistical analysis with Kruskal–Wallis test and Mann–Whitney test was performed. Results There were statistically significant differences between the three groups. The HyFlex EDM instruments have a fracture resistance slightly higher than the Twisted file and far higher than Revo S SU. Conclusions Modern Ni–Ti alloys increase resistance of the rotating instruments to cyclic fatigue.
- Subjects :
- Cyclic stress
Cyclic fatigue
Materials science
Continuous rotation
business.industry
030206 dentistry
Structural engineering
lcsh:RK1-715
03 medical and health sciences
0302 clinical medicine
Nickel titanium
lcsh:Dentistry
Nickel-Titanium
Metal device
Statistical analysis
030212 general & internal medicine
Rotary instruments
business
General Dentistry
Subjects
Details
- ISSN :
- 11214171
- Volume :
- 31
- Database :
- OpenAIRE
- Journal :
- Giornale Italiano di Endodonzia
- Accession number :
- edsair.doi.dedup.....612a3b96fa3efc198509d9c20b3cb526
- Full Text :
- https://doi.org/10.4081/j.gien.2017.23