NiTi rotary solution for predictable canal patency Dentistry Today Top 100 ProductsFlexible and resistant to cyclic fatigue, these files offer many advantages compared to manual stainless steel files including: Less canal transportation than with manual K-files Suitable for curved canals More flexible than K-files Faster instrumentation time than with manual K-files The original canal anatomy is better preserved: No apical foramen transportation when the working length is too long No ledges when the working length is too short