Size S1 NiTi Endodontic Rotary Files, lengths 21mm, 25mm, 31mm Overview These endodontic rotary files are made from nickel titanium memory wire and designed for cleaning and shaping root canal systems. The S1 size files are available in 21mm, 25mm, and 31mm lengths to suit different working lengths and canal anatomies. Key benefits Material and flexibility: Manufactured from NiTi memory wire to provide superelasticity and improved flexibility compared to stainless steel, helping files follow curved canals with less deformation. Heat treated and blue finish: Heat activation and a blue finish increase flexibility and cyclic fatigue resistance, making the instruments more durable under repeated use. Rotary compatibility: Designed for use with rotary endodontic handpieces and compatible with standard rotary systems for efficient rotary instrumentation. Accurate shaping: Engineered to shape complex canal anatomies while maintaining lumen integrity and predictable cutting performance. Size options: Available in three lengths (21mm, 25mm, 31mm) to match different tooth types and clinical access situations. Attributes Size: S1 Lengths: 21mm, 25mm, 31mm Material: Nickel titanium memory wire (NiTi) Treatment: Heat activated with blue finish Motion: Rotary, requires compatible rotary handpiece Practical use scenarios Narrow curved molar canals: S1 NiTi files can follow curved paths with reduced tendency for ledging or transportation, aiding in consistent shaping of curved molar canals. Anterior and premolar canals with variable working lengths: Choose the appropriate length (21mm, 25mm, or 31mm) to match canal length and access for improved control during rotary preparation. Complex canal systems during routine endodontic procedures: Use with a compatible rotary handpiece to streamline cleaning and shaping while maintaining tactile feedback. Notes on use Use only with compatible rotary endodontic handpieces and follow the handpiece manufacturer recommendations for speed and torque settings. Inspect files before each use for signs of deformation or wear and follow standard clinical protocols for instrument handling and sterilization.