Description:

for accurate apical shaping during endodontic treatments. Being a key element of the well-regarded ProTaper U rotary file series, this tool is vital in refining the apical third of the root canal, establishing ideal conditions for both irrigation and obturation.

Made from premium nickel-titanium alloy, the ProTaper U Rotary F4 provides outstanding flexibility, cutting performance, and resistance to cyclic fatigue. Its progressive taper enhances safety and control during procedures, enabling dental practitioners to navigate curved and narrow canals while preserving the original tooth anatomy. The 21MM length makes it particularly effective for shorter canals or difficult posterior teeth, delivering improved tactile feedback and precise handling in tight spaces.

The file features sharp cutting edges that facilitate efficient dentin removal, leading to accurate shaping and minimizing the chances of procedural mistakes such as ledging, transportation, or instrument fracture. An optimized flute design enhances debris removal, ensuring a clean working area throughout the shaping process and elevating the effectiveness of irrigation solutions.

When used with a compatible rotary endodontic motor at the specified torque and speed settings, the PTURF421 operates reliably and consistently. It integrates seamlessly into the ProTaper U rotary sequence, providing a systematic and stepwise approach to root canal shaping that improves procedural efficiency and patient results.

Dental professionals depend on the ProTaper U Rotary F4 21MM for its consistent shaping capability, versatility, and its ability to simplify intricate endodontic processes. Its robust, high-performance design promotes successful canal preparation, facilitating safe, efficient, and contemporary root canal treatments that enhance long-term patient care.