ProTaper Next®
Off-centered rectangular cross-section creates swaggering motion for improved debris removal
| File | Tip | Taper | Speed rpm | Torque Ncm |
|---|---|---|---|---|
| XA | 0.19 | 3.5% | 300 | 2-3 |
| 0.17 | 4%v | 300 | 2-3 | |
| 0.25 | 6%v | 300 | 2-3 | |
| 0.30 | 7%v | 300 | 2-3 | |
| 0.40 | 6%v | 300 | 2-3 | |
| 0.50 | 6%v | 300 | 2-3 |
Speed: 300 RPM for all files; torque: 2-3 Ncm (per 2025 IFU)
M-Wire NiTi provides greater flexibility and cyclic fatigue resistance vs conventional NiTi (manufacturer data)
Off-centered rectangular cross-section — only two points touch the canal wall at a time, reducing screw-in effect
Patented asymmetric rotary (AR) motion: axis of rotation differs from center of mass, creating swaggering movement
Most canals finish with X1 and X2 only — use X3-X5 only when gauging hand file is loose at WL
Brushing motion away from external root concavities recommended to facilitate flute unloading (per DFU)
Shorter handle than ProTaper Universal for improved posterior accessibility (per US brochure)
For extremely curved canals: use file for single canal only, discard after, consider hand files (per 2025 IFU)
XA accessory file (standard NiTi, 19mm) available for preflaring orifice and improving radicular access
Compatible with ProTaper Next Conform Fit GP, GuttaCore obturators, absorbent points, and size verifiers
Obturation Techniques
Single cone, warm vertical, carrier-based & lateral compaction
From Dentsply Sirona Systems
Manufacturer page
Dentsply Sirona SystemsOther continuous rotation systems
Motion category
Continuous RotationComparisons
Alloy
M-WireCollections
Clinical guides
What alloy is ProTaper Next made from?
Answer
ProTaper Next® is manufactured from M-Wire NiTi with m-wire heat treatment.
How many files are in the ProTaper Next sequence?
Answer
The ProTaper Next® system includes 6 files: XA, X1, X2, X3, X4, X5.
What motion type does ProTaper Next use?
Answer
ProTaper Next® uses continuous rotation motion.
What cases is ProTaper Next best for?
Answer
ProTaper Next® is best suited for: off-centered swaggering motion, reduced file engagement, progressive shaping.
What speed and torque settings are recommended for ProTaper Next?
Answer
Recommended settings: 300 RPM and 2-3 Ncm across the file sequence (refer to official DFU for full per-file parameters).
Reviewed by
Dr. Levent Yuksel
DDS · Endodontist
Independently authored and clinically reviewed.