Torsional Resistance of ProGlider, Hyflex EDM, and One G Glide Path Instruments

İnan U., Keskin C.

JOURNAL OF ENDODONTICS, vol.45, no.10, pp.1253-1257, 2019 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 45 Issue: 10
  • Publication Date: 2019
  • Doi Number: 10.1016/j.joen.2019.06.012
  • Journal Name: JOURNAL OF ENDODONTICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1253-1257
  • Keywords: Glide path, nickel titanium, torsional resistance, CYCLIC FATIGUE RESISTANCE, TITANIUM ROTARY FILES, PATHFINDING INSTRUMENTS, MECHANICAL-BEHAVIOR, BENDING PROPERTIES, PROTAPER, STRESSES, DEFECTS, SYSTEMS, MODELS
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

Introduction: The present study aimed to compare the torsional resistance of ProGlider (Dentsply Sirona, Ballaigues, Switzerland), Hyflex EDM (Coltene-Whaledent, Altstatten, Switzerland), and One G (Micro-Mega, Besancon, France) glide path instruments. Methods: Fifteen ProGlider (16.02 similar to 08), 15 Hyflex EDM (10.05), and 15 One G (14.03) instruments were collected and tested for torsional strength using a custom-designed testing device. Data were analyzed using 1-way analysis of variance and Tukey post hoc tests with 5% significance level. The tested specimens were examined under a scanning electron microscope. Results: There was no significant difference between Hyflex EDM and ProGlider regarding their torsional resistance values (P > .05). One G showed the lowest torsional resistance (P < .05). Hyflex EDM exhibited the highest angle of rotation values among the instruments (P < .05). Conclusions: Hyflex EDM and ProGlider instruments had significantly higher torsional fatigue resistance than One G instruments, whereas Hyflex EDM showed the highest angle of rotation values. The differences in the torsional resistances might be associated with their different design features and manufacturing processes.