Comparison of mechanical resistance and standardisation between original brand and replica-like endodontic systems

Uslu O., Haznedaroglu F., Keskin C.

AUSTRALIAN ENDODONTIC JOURNAL, vol.49, no.1, pp.149-158, 2023 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 49 Issue: 1
  • Publication Date: 2023
  • Doi Number: 10.1111/aej.12639
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, EMBASE, MEDLINE
  • Page Numbers: pp.149-158
  • Keywords: endodontic, nickel-titanium, replica-like, scanning electron microscopy, standardisation, CYCLIC FATIGUE RESISTANCE, TITANIUM ROTARY INSTRUMENTS, PROTAPER UNIVERSAL, TEMPERATURE, FILES
  • Ondokuz Mayıs University Affiliated: Yes


This study compared the original (ProTaper Next and Reciproc) endodontic systems with their replica-like brands (X File and Only One File) in terms of standardisation, design, phase-transformation behaviour, composition and mechanical behaviour. X File showed greater taper values than ProTaper Next, while Only One File had the greatest tip diameter. Both replica-like files had an active tip and greater dimensions than their reports. There were also significant differences between the original and replica-like systems in terms of their phase-transformation behaviour and the precision of the measurement lines. Only One File showed significantly lower cyclic fatigue and torsional resistance than Reciproc (p < 0.05). There were no significant differences in the cyclic fatigue, torsional resistance and composition of NiTi between X File and ProTaper Next (p > 0.05). Although replica systems show mechanical properties that can be acceptable, they are not consistent in terms of standardisation and design.