Clinical Tip
Compare specifications above to choose the best system for your clinical case.
Specifications
| — | K3XF | ProTaper Ultimate |
|---|---|---|
| Manufacturer | Kerr Endodontics | Dentsply Sirona |
| Alloy | R-Phase™ Heat-Treated NiTi | M-Wire / Gold / Blue Heat-Treated NiTi |
| Heat Treatment | R-Phase | Gold Heat-Treated |
| Motion | Continuous Rotation | Continuous Rotation |
| Files | 24 | 8 |
| Taper | Variable | Variable |
| Cross-section | Asymmetric Triple-Fluted | Parallelogram (variable acute angles, off-centered) |
| Speed | 350 RPM | 400 RPM |
| Torque | 3 Ncm | 4 Ncm |
| Use Type | Reusable (limited) | Single-use |
Best For
K3XF
versatile multi-taper rotary shapingclinicians familiar with K3 techniquecases requiring wide taper selection (.04-.12)
ProTaper Ultimate
5th generation ProTaper evolutionK-file free workflowcomplex anatomy with manual fallback for severe curves
Key Features
K3XF
Original K3 asymmetric triple-fluted design enhanced with R-Phase heat treatment for improved flexibility and cyclic fatigue resistance
ProTaper Ultimate
Slider-Shaper-Finishers concept with dual heat treatments: Gold for standard sequence, Blue for auxiliary finishers in large canals