ONLY ONE FILES

•The Reciprocating movement induced less Cyclic Fatigue and promote an extended Life of the instrument compared to Conventional Rotation:
• Files in Reciprocation resulted in Less residual debns than canal shaping performed with instrument used in rotating motion;
• Associated with more complete cracks then the full sequence rotary system;
• Reduced torsional stress;
• Less flexural stress on the instrument;
• Decreased risk of Instrument Fracture;