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Incidence of instrument separation using LightSpeed rotary instruments
Kenneth I Knowles1, Nathan B Hammond, Stephen G Biggs
1Department of Endodontics, Creighton University Medical Center, 2500 California Plaza, Omaha, NE 68178, USA. KIKEndo@creighton.edu
Journal of Endodontics
|January 18, 2006
Summary
The LightSpeed nickel-titanium rotary system showed a low rate of 1.30% for nonretrievable instrument separation in a clinical setting. This incidence is lower than previously reported for similar endodontic instruments.
Area of Science:
- Endodontics
- Dental Materials Science
Background:
- Nickel-titanium (NiTi) rotary instruments are widely used in endodontics.
- Instrument separation is a known complication associated with NiTi rotary systems.
- The LightSpeed system is one such NiTi rotary instrument system.
Purpose of the Study:
- To evaluate the incidence of nonretrievable instrument separation.
- To assess the performance of the LightSpeed system in a clinical setting.
Main Methods:
- A retrospective clinical study was conducted over a 24-month period.
- 3543 root canals were treated using the LightSpeed system.
- The incidence of separated and nonretrievable instruments was recorded.
Main Results:
- A total of 46 LightSpeed instruments separated and were nonretrievable.
- The overall separation rate was 1.30%.
- This rate is lower compared to previously published studies on similar systems.
Conclusions:
- The LightSpeed system demonstrated a clinically acceptable rate of instrument separation.
- Further research may explore factors influencing separation rates in clinical use.