NT Rainbow Files | Rotary Endodontic Files System | Nickel Titanium Root Canal Files |

NT Rainbow Files are premium heat-treated nickel-titanium (NiTi) rotary endodontic files designed to provide efficient, safe, and predictable root canal preparation. Their advanced rainbow heat-treatment technology enhances flexibility, cyclic fatigue resistance, and cutting performance, allowing clinicians to negotiate curved and complex canals while preserving the original canal anatomy. The color-coded system ensures easy identification, making instrumentation faster and more organized. NT Rainbow Files are compatible with most standard rotary endodontic motors and are ideal for modern endodontic procedures. 

Key Features

• Advanced heat-treated NiTi alloy for superior flexibility
• Rainbow surface treatment improves cyclic fatigue resistance
• Excellent cutting efficiency with smooth canal shaping
• Maintains original root canal anatomy
• Non-cutting safety tip reduces the risk of canal transportation and perforation
• Efficient debris removal for cleaner canal preparation
• Color-coded system for quick size identification
• Suitable for straight, curved, and narrow canals
• Compatible with most rotary endodontic motors
• Available in multiple sizes and lengths (21 mm, 25 mm, and 31 mm depending on the variant) 

Clinical Applications

• Root canal cleaning and shaping
• Negotiation of curved root canals
• Canal enlargement and preparation
• Primary and secondary endodontic treatment
• General rotary endodontic procedures

Specifications

• Brand: NT (NineTen)
• Product Type: NiTi Rotary Endodontic Files
• Material: Heat-treated Nickel Titanium (NiTi)
• Available Lengths: 21 mm, 25 mm, 31 mm
• Available Sizes: 20/.04, 20/.06, 25/.04, 25/.06, 30/.04, 30/.06, 35/.04, 35/.06, assorted kits (varies by pack)
• Recommended Speed: Approximately 400 RPM
• Recommended Torque: Around 2 N·cm (follow the manufacturer’s instructions and your endodontic motor settings)