Clinical Tip
Two controlled-memory .04/.06 systems with a 1 mm maximum flute diameter. ZenFlex runs at 500 RPM with torque set per taper and size (20–40), and can also run in Adaptive Motion on a Kerr motor; EdgeFile X7 spans 17–45 at 300–500 RPM with one torque setting. Choose ZenFlex for the Kerr ecosystem, X7 for the wider size range.
Specifications
| — | EdgeFile X7 | ZenFlex |
|---|---|---|
| Manufacturer | EdgeEndo | Kerr Dental |
| Alloy | Fire-Wire™ Annealed Heat-Treated NiTi | Heat-Treated NiTi (Controlled Memory) |
| Heat Treatment | Fire-Wire | CM-Wire |
| Motion | Continuous Rotation | Continuous Rotation |
| Files | 14 | 10 |
| Taper | 4%, 6% | 4%, 6% |
| Cross-section | Parabolic / variable diamond | Triangular |
| Speed | 300 RPM | 500 RPM |
| Torque | 300 Ncm | 1–3.5 Ncm |
| Use Type | Single-use | Single-use |
Best For
EdgeFile X7
crown-down rotary with enhanced fatigue resistancedual taper versatility (.04/.06)mid-cost North American market
ZenFlex
minimally invasive shapingcontrolled-memory flexibilitydual taper strategy (.04/.06)
Key Features
EdgeFile X7
Fire-Wire AHT eliminates shape memory for canal-contouring flexibility with enhanced cyclic fatigue resistance (manufacturer data)
ZenFlex
Violet oxide surface with 1mm flute diameter for minimally invasive shaping and excellent flexibility
Related Clinical Links
Manufacturer pages
Motion categories