ProTaper Next®
Dentsply Sirona
ProTaper Next®
Dentsply Sirona
Off-centered rectangular cross-section creates swaggering motion for improved debris removal
Continuous Rotation · M-Wire NiTi
- RPM
- Ncm2–4
- File
- 6
- Verified
Specifications
Tap icons for term definitions
| File | Tip | Taper | SpeedRPM | TorqueNcm | Role |
|---|---|---|---|---|---|
Diameter at the file tip (D0). Larger tips shape wider canals. | |||||
How much the file widens per mm. Higher taper = more aggressive cutting. | |||||
Rotational speed (RPM). Follow manufacturer settings to prevent file breakage. | |||||
Rotational force limit (Ncm). Prevents file fracture by auto-reversing when resistance is too high. | |||||
XAyellow | 0.19 | 3.5% | 300 | 3-4 | Orifice opener |
X1yellow | 0.17 | 4%v | 300 | 2-3 | Shaping |
X2red | 0.25 | 6%v | 300 | 2-3 | Shaping |
X3blue | 0.30 | 7%v | 300 | 2-3 | Finishing |
X4black | 0.40 | 6%v | 300 | 2-3 | Finishing |
X5yellow | 0.50 | 6%v | 300 | 2-3 | Finishing |
Matching gutta-percha & paper points
- Gutta-percha
- ProTaper Next Conform Fit Gutta-Percha PointsX1, X2, X3, X4, X5
- Paper points
- ProTaper Next Absorbent PointsX2, X3, X4, X5
Clinical Tips
- Speed: 300 RPM for all files; torque: X1-X5 2-3 Ncm, XA 3-4 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
Warnings
- Single-use only — do not reprocess or reuse (per IFU)
- Toxic or allergic reactions caused by processing residues are a risk listed in the IFU — follow the IFU strictly to minimize it (per IFU)
- Do not fully immerse in sodium hypochlorite — only working part in max 5% NaOCl concentration (per 2025 IFU)
- Do not use in root canals with abrupt apical curvature — heightened risk of separation; use pre-curved hand files instead (per IFU)
- Inspect for deformation (bent, unwound), breakage, corrosion, damaged cutting edges before each use — discard if defective
- For extremely curved canals: use a new file per canal (single canal use) to reduce breakage risk (per 2025 IFU)
- In severe curvatures the IFU also allows ProTaper Next files to be used by hand, not only with the motor (per 2025 IFU)
Obturation Techniques
Single cone, warm vertical, carrier-based & lateral compaction
Protocol
01Glide Path3
02Shaping2
03Finishing2
Related Systems
From Dentsply Sirona Systems
Manufacturer page
Dentsply Sirona SystemsOther continuous rotation systems
Motion category
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Alloy
M-WireCollections
Clinical guides
Frequently Asked Questions
What alloy is ProTaper Next made from?
What alloy is ProTaper Next made from?
Answer
ProTaper Next® is manufactured from M-Wire NiTi.
How many files are in the ProTaper Next sequence?
How many files are in the ProTaper Next sequence?
Answer
The ProTaper Next® system includes 6 files: XA, X1, X2, X3, X4, X5.
What is the ProTaper Next file sequence?
What is the ProTaper Next file sequence?
Answer
ProTaper Next® is used in this order: XA → X1 → X2 → X3 → X4 → X5.
- Per-file speed, torque and technique are in the protocol section above.
What motion type does ProTaper Next use?
What motion type does ProTaper Next use?
Answer
ProTaper Next® uses continuous rotation motion.
What cases is ProTaper Next best for?
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?
What speed and torque settings are recommended for ProTaper Next?
Answer
Recommended settings: 300 RPM and 3-4 / 2-3 Ncm across the file sequence (refer to official DFU for full per-file parameters).
Reviewed by
Uzm. Dt. Levent Yüksel
DDS · Endodontist
Endodontist — DDS, Hacettepe University; endodontics specialty training, Ankara University. 10+ years of clinical experience. Sole author and reviewer of EndoGuide content.
Cite this page
Citation formats for the manufacturer-verified specification data on this page.
AMA
Yüksel L. ProTaper Next: sequence, speed and torque settings. EndoGuide. Updated: 2026-10-03. https://endo-guide.app/system/protaper-next
BibTeX
@misc{endoguide-protaper-next,
author = {Yüksel, Levent},
title = {ProTaper Next: sequence, speed and torque settings},
howpublished = {\url{https://endo-guide.app/system/protaper-next}},
year = {2026},
note = {EndoGuide. Updated: 2026-10-03}
}Powered by:Uzm. Dt. Levent Yüksel
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