title: Comparison of Cyclic Fatigue Resistance of ProGlider and One G Glide Path Files.
abstract: BACKGROUND
  The aim of this study was to compare the cyclic fatigue resistances of nickel-titanium rotary glide path files, which are manufactured as single-file systems, under dynamic model.
  
  
  METHODS
  Twenty ProGlider (16.02) and 20 One G (14.03) nickel-titanium glide path files were included in this study. Cyclic fatigue tests were performed with specifically manufactured dynamic cyclic testing device. The device has an artificially prepared canal with 60° curvature angle and 5-mm curvature radius. The canal inner diameter is 1.5 mm, and its curvature center is located at the coronal 5 mm from the apical. The files were randomly divided into 2 groups (n = 20): group 1, ProGlider; group 2, One G. Time to fracture was recorded, and the number of cycles to failure for each instrument was obtained. Statistical analyses were performed by using independent samples t test. The statistically significant level was set at P < .05.
  
  
  RESULTS
  The cyclic fatigue resistance of ProGlider files was found to be statistically significantly higher than that of the One G files (P < .05).
  
  
  CONCLUSIONS
  Within the limitations of the present study, it was concluded that the cyclic fatigue resistance of ProGlider, which is manufactured as single-file glide path system, is higher than that of the One G file.
authors: Department of Endodontics, Ondokuz Mayıs University, Samsun, Turkey.
authors: Gülşah
authors: G
authors: Uslu
authors: Department of Endodontics, Ondokuz Mayıs University, Samsun, Turkey. Electronic address: tahaozyurek@hotmail.com.
authors: Taha
authors: T
authors: Özyürek
authors: Department of Endodontics, Ondokuz Mayıs University, Samsun, Turkey.
authors: Uğur
authors: U
authors: İnan
mesh_terms: D003722:Dental Alloys; D003762:Dental Instruments; D003799:Dental Stress Analysis / Q000295:instrumentation*; D004867:Equipment Design; D004868:Equipment Failure; D008422:Materials Testing; D009532:Nickel; D018915:Root Canal Preparation / Q000295:instrumentation*; D013314:Stress, Mechanical; D014025:Titanium; D054159:Torsion, Mechanical
chemical_list: D003722:Dental Alloys; C040654:titanium nickelide; D009532:Nickel; D014025:Titanium
keywords: Dynamic cyclic fatigue test; One-G; ProGlider; endodontics; glide path