Cyclic fatigue resistances of several nickel-titanium glide path rotary and reciprocating instruments at body temperature
| Autor: | Gianluca Plotino, Taha Özyürek, Mustafa Gündoğar, Gülşah Uslu, Koray Yılmaz, Nicola M. Grande |
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| Přispěvatelé: | Ondokuz Mayıs Üniversitesi, Yilmaz, K. Corum Oral & Dent Ctr, Corum, Turkey, Uslu, G. Dent Clin, Canakkale, Turkey, Gundogar, M. Medipol Univ, Dept Endodont, Fac Dent, Istanbul, Turkey, Ozyurek, T. Ondokuz Mayis Univ, Dept Endodont, Fac Dent, Samsun, Turkey, Grande, N. M. Univ Cattolica Sacro Cuore, Dept Endodont, Rome, Italy, Plotino, G. Grande Plotino & Torsello Dent Clin, Rome, Italy, ozyurek, taha -- 0000-0003-3299-3361, Plotino, Gianluca -- 0000-0003-3003-8029, Grande, Nicola Maria -- 0000-0003-3407-9768 |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Dental Instruments Cyclic stress Materials science Rotation Post hoc Significant difference R-Pilot 030206 dentistry ProGlider cyclic fatigue Cyclic Fatigue Body Temperature 03 medical and health sciences Reciprocating motion 030104 developmental biology 0302 clinical medicine HyFlex EDM Nickel titanium Alloys Fracture (geology) Hyflex EDM Composite material General Dentistry One G |
| Popis: | Grande, Nicola Maria/0000-0003-3407-9768; Plotino, Gianluca/0000-0003-3003-8029; ozyurek, taha/0000-0003-3299-3361 WOS: 000437832900009 PubMed: 29385639 AimTo compare the cyclic fatigue resistance of the One G, ProGlider, HyFlex EDM and R-Pilot glide path NiTi files at body temperature. MethodologyTwenty One G (size 14, .03 taper), 20 ProGlider (size 16, .02 taper), 20 HyFlex EDM (size 10, .05 taper) and 20 R-Pilot (size 12.5, .04 taper) instruments were operated in rotation at 300rpm (One G, ProGlider and HyFlex) or in reciprocation (R-Pilot) at 35 degrees C in artificial canals that were manufactured by reproducing the size and taper of the instrument until fracture occurred. The time to fracture was recorded in seconds using a digital chronometer, and the length of the fractured fragments was registered. Mean data were analysed statistically using the Kruskal-Wallis test and post hoc Tukey tests via SPSS 21.0 software. The statistical significance level was set at 5%. ResultsThe cyclic fatigue resistance of the R-Pilot files was significantly greater than the other instruments, and the One G was significantly lower (P0.05). No significant difference (P>0.05) was evident in the mean length ofthe fractured fragments of the various instruments. ConclusionsThe cyclic fatigue resistance of the R-Pilot reciprocating glide path file was significantly greater than that of the rotary HyFlex EDM, ProGlider and One G glide path files. |
| Databáze: | OpenAIRE |
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