A recent study in the European Journal of Dentistry highlights the Super Flexi Files Blue (SFB; 20/.04) as a breakthrough in nickel-titanium (NiTi) rotary instrument design. Compared to two leading industry products (“Well-known brand 1” and “Well-known brand 2”), SFB demonstrated significantly higher resistance to cyclic fatigue, a critical factor in preventing instrument failure during root canal procedures.
Key Findings from the Research
The multi-method analysis tested SFB against competitors using cyclic fatigue, buckling, and bending tests. Key results include:
– Cyclic Fatigue Resistance: SFB showed the longest time to fracture and highest number of cycles to failure in both fixed-speed (300 rpm) and manufacturer-recommended speed tests. For example, at its recommended speed (250 rpm), SFB lasted 319.7 seconds and achieved 1,332 cycles to failure—metrics far exceeding those of “Well-known brand 1” and “Well-known brand 2.”
– Speed Impact: While increasing speed slightly reduced SFB’s performance, it remained the most resilient overall. Conversely, reducing speeds improved results for the other tested brands, underscoring the importance of rotational speed in instrument durability.
– Cost-Effectiveness: Beyond mechanical excellence, SFB is more affordable than the compared systems, making it a cost-efficient choice for dental practices without compromising on quality.
Why SFB Stands Out
SFB’s superior performance is attributed to its trapezoidal cross-section and blue wire heat treatment, which enhance flexibility and reduce stress accumulation. These design features make it particularly adept at navigating curved root canals while minimizing the risk of fracture—a common challenge in endodontic procedures.
Explore the Full Study for Detailed Insights
While this summary highlights key conclusions, the full paper provides in-depth methodology, statistical analyses, and comparative data. Whether you’re an endodontist, researcher, or dental professional, the study offers valuable insights into optimizing treatment efficiency and patient safety.
Click below to download the open-access paper:
[Multimethod Analysis of a Novel NiTi Rotary System: Cyclic Fatigue, Buckling Resistance, and Bending Tests](https://doi.org/10.1055/s-0045-1806949)
Conclusion
The Super Flexi Files Blue system represents a paradigm shift in NiTi instrument technology, combining exceptional fatigue resistance, flexibility, and cost-effectiveness. Backed by rigorous research, SFB is poised to become a staple in modern endodontic practices. Download the study to explore the data and discover how SFB can elevate your procedural outcomes.
Have questions about SFB’s clinical applications? Share them in the comments!
Citation: Rocha et al. (2025). European Journal of Dentistry. DOI: 10.1055/s-0045-1806949.
