Comparison of the Cyclic Fatigue Resistance of HyFlex EDM, One G, and ProGlider Nickel Titanium Glide Path Instruments in Single and Double Curvature Canals

Overview

Journal Restor Dent Endod

Date 2017 Nov 17

PMID 29142876

Citations 11

Authors

Koray Yilmaz

Gulsah Uslu

Taha Ozyurek

Affiliations

Soon will be listed here.

Abstract

Objectives: It was aimed to compare the cyclic fatigue resistances of ProGlider (PG), One G (OG), and HyFlex EDM (HEDM) nickel titanium glide path files in single- and double-curved artificial canals.

Materials And Methods: 40 PG (16/0.02), 40 OG (14/0.03), and 40 HEDM (10/0.05) single-file glide path files were used in the present study. Sixty files were subjected to cyclic fatigue test by using double-curved canals and 60 files by using single-curved canal ( = 20). The number of cycles to fracture (NCF) was calculated and the length of the fractured fragment (FL) was determined by a digital micro-caliper. Twelve pieces of fractured files were examined with scanning electron microscope to determine fracture types of the files ( = 2). The NCF and the FL data were analyzed using one-way analysis of variance and Tukey test using SPSS 21 software ( < 0.05).

Results: In all of the groups, NCF values were significantly lower in double-curved canals when compared to single-curved canals ( < 0.05). For both of single- and double-curved canals, NCF values of HEDM group in apical and coronal curvatures were found to be significantly higher than NCF values of PG and OG groups ( < 0.05). In both of single- and double-curved canals, NCF value of PG group was found significantly higher than OG group ( < 0.05).

Conclusions: Within the limitations of this study, HEDM glide path files were found to have the highest cyclic fatigue resistance in both of single- and double-curved canals.

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