Clinical Tip
ProTaper Gold for predictable shaping. HyFlex EDM for extreme curves—studies show ~2x greater fatigue resistance with controlled memory wire.
Specifications
| — | HyFlex EDM | ProTaper Gold |
|---|---|---|
| Manufacturer | Coltene | Dentsply Sirona |
| Alloy | CM-Wire (EDM manufactured) | Gold Heat-Treated NiTi |
| Heat Treatment | CM-Wire | Gold Heat-Treated |
| Motion | Continuous Rotation | Continuous Rotation |
| Files | 8 | 8 |
| Taper | Variable | Variable |
| Cross-section | Triangular, Square, Variable (quadratic tip, trapezoidal middle, triangular coronal) | Convex triangular, Concave triangular |
| Speed | 300–400 RPM | 300 RPM |
| Torque | 1.8–2.5 Ncm | 1.5–5 Ncm |
| Use Type | Reusable (limited) | Reusable (limited) |
Best For
HyFlex EDM
extreme curvaturesfatigue resistance priorityreusable with regeneration
ProTaper Gold
versatile multi-file sequencecomplex anatomygraduated shaping
Key Features
HyFlex EDM
Up to 700% greater fatigue resistance with regenerative memory (manufacturer data; brochure reports up to 1,200% vs specific competitors)
ProTaper Gold
Variable taper design with progressive engagement