Clinical Tip
Compare specifications above to choose the best system for your clinical case.
Specifications
| — | E-Flex Gold | ProTaper Ultimate |
|---|---|---|
| Manufacturer | Eighteeth | Dentsply Sirona |
| Alloy | Control Memory NiTi (gold heat-treated) | M-Wire / Gold / Blue Heat-Treated NiTi |
| Heat Treatment | Gold Heat-Treated | Gold Heat-Treated |
| Motion | Continuous Rotation | Continuous Rotation |
| Files | 9 | 8 |
| Taper | Variable | Variable |
| Cross-section | Not specified | Parallelogram (variable acute angles, off-centered) |
| Speed | 300–350 RPM | 400 RPM |
| Torque | 2.5–3 Ncm | 4 Ncm |
| Use Type | Single-use | Single-use |
Best For
E-Flex Gold
cost-effective gold heat-treated rotary systemintegrated workflow (orifice opener + glider + shaping in one family)single uniform speed/torque setting (350 RPM / 2 Ncm)
ProTaper Ultimate
5th generation ProTaper evolutionK-file free workflowcomplex anatomy with manual fallback for severe curves
Key Features
E-Flex Gold
Gold heat-treated CM wire with integrated orifice opener (17/.08) and glider (19/.02) — variable pitch design with non-cutting safety tip
ProTaper Ultimate
Slider-Shaper-Finishers concept with dual heat treatments: Gold for standard sequence, Blue for auxiliary finishers in large canals