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Nickel-titanium rotary-file canal preparation and intracanal file separation
Gerald Fishelberg1, John W Pawluk
1University of Medicine and Dentistry of New Jersey-New Jersey Dental School, Newark, NJ, USA.
Compendium of Continuing Education in Dentistry (Jamesburg, N.J. : 1995)
|January 14, 2005
Summary
Nickel-titanium (Ni-Ti) rotary files offer smooth canal preparations in endodontics. While file separation is a concern, proper technique and experience minimize risks, making Ni-Ti files valuable tools for dentists.
Area of Science:
- Endodontics
- Dental materials science
Background:
- Nickel-titanium (Ni-Ti) rotary files are widely used in endodontics for efficient canal preparation.
- Intracanal file separation remains a significant challenge for dental practitioners.
Purpose of the Study:
- To discuss the factors contributing to Ni-Ti rotary file separation.
- To emphasize the benefits of Ni-Ti files when used correctly.
Main Methods:
- Review of factors influencing rotary file performance and failure.
- Discussion of clinical considerations for Ni-Ti file usage.
Main Results:
- File separation is linked to canal curvature, anatomical variations, practitioner experience, usage frequency, and rotation speed.
- Familiarity and experience with Ni-Ti instruments are crucial for successful outcomes.
Conclusions:
- Ni-Ti rotary files are effective for creating smooth, reproducible canal preparations.
- Dentists' experience and proper technique mitigate the risks associated with Ni-Ti file separation, enabling their safe and beneficial use.