TruNatomy®
Dentsply Sirona
TruNatomy®
Slim 0.8mm MFD with off-centered parallelogram cross-section preserves peri-cervical dentin while maintaining shaping efficiency
Continuous Rotation · Heat-Treated NiTi
rpm
1.5
Ncm
File
6
Verified
Feb 2026
Specifications
Tap icons for term definitions
0.20 · 8%1.5Ncm
0.17 · 2%v1.5Ncm
0.20 · 4%v (regressive)1.5Ncm
0.26 · 4%v (regressive)1.5Ncm
0.36 · 3%v (regressive)1.5Ncm
0.46 · 2%v (regressive)1.5Ncm
| File | Tip | Taper | Speed rpm | Torque Ncm | Role |
|---|---|---|---|---|---|
| 0.20 | 8% | 500 | 1.5 | ||
| 0.17 | 2%v | 500 | 1.5 | ||
| 0.20 | 4%v (regressive) | 500 | 1.5 | ||
| 0.26 | 4%v (regressive) | 500 | 1.5 | ||
| 0.36 | 3%v (regressive) | 500 | 1.5 | ||
| 0.46 | 2%v (regressive) | 500 | 1.5 |
Matching gutta-percha & paper points
- Gutta-percha
- TruNatomy Conform Fit Gutta-Percha PointsSmall, Prime, Medium, Large
- Paper points
- TruNatomy Absorbent Paper PointsSmall, Prime, Medium, Large
Clinical Tips
All files operate at same settings: 500 RPM and 1.5 Ncm - no need to change between files (per IFU)
0.8mm MFD (vs up to 1.2mm for most variable-tapered files) preserves peri-cervical structural dentin (per product page)
9.5mm handle (shortest on market) plus pre-curving capability enables molar access with contra-angle micro heads (per product page)
Regressive taper on shaping files — all shaping files have same coronal diameter, differ only at apical third (per Scientific Manual)
Conservative Endodontic Cavity (CEC) is recommended — prepare access sufficient to reveal all root canal orifices (per 2025 IFU). Note: GuttaCore tip card recommends confirming straight-line access for obturation.
Proprietary post-machining heat treatment — files reach martensitic phase at body temperature for enhanced flexibility (per Scientific Manual)
Off-centered cross-section on shaping files reduces stress during cutting and increases debris removal space (per Scientific Manual)
Files may appear slightly curved from manufacturing — this is normal, not a defect; do not need to straighten before use (per IFU)
For shaping extremely curved canals, use file for single canal only to reduce breakage risk (per IFU)
TruNatomy Prime showed improved cyclic fatigue resistance vs ProTaper Next X2 — Dentsply brochure reports 3.5x improvement (bench data); Peters et al. 2020 (PMID 32389382) supports directional claim in vitro
Warnings
- Single use only — do not resterilize or reuse (per IFU)
- Contains nickel-titanium — allergic or toxic reactions may occur in sensitive patients (per IFU)
- Do not fully immerse in NaOCl — only working part in max 5% concentration (per 2025 IFU)
- Do not use in canals with abrupt apical curvature — use pre-curved hand files instead (per IFU)
- Inspect for distortion, unwinding, or straightening before and after use — discard if deformation noted
- Do not exceed recommended speed (500 RPM) and torque (1.5 Ncm)
- Always maintain apical patency during shaping — irrigate, recapitulate with #10 K-file between files
- Do not use brushing action with TruNatomy files (per IFU)
Obturation Techniques
Single cone, warm vertical, carrier-based & lateral compaction
Protocol
01Glide Path3
02Shaping3
03Finishing3
Related Systems
From Dentsply Sirona Systems
Manufacturer page
Dentsply Sirona SystemsOther continuous rotation systems
Motion category
Continuous RotationComparisons
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Use cases
Collections
Clinical guides
Frequently Asked Questions
01What alloy is TruNatomy made from?
01
What alloy is TruNatomy made from?
Answer
TruNatomy® is manufactured from Heat-Treated NiTi.
02How many files are in the TruNatomy sequence?
02
How many files are in the TruNatomy sequence?
Answer
The TruNatomy® system includes 6 files: Orifice Modifier, Glider, Small, Prime, Medium, Large.
03What is the TruNatomy file sequence?
03
What is the TruNatomy file sequence?
Answer
TruNatomy® is used in this order: Orifice Modifier → Glider → Small → Prime → Medium → Large.
- 01Per-file speed, torque and technique are in the protocol section above.
04What motion type does TruNatomy use?
04
What motion type does TruNatomy use?
Answer
TruNatomy® uses continuous rotation motion.
05What cases is TruNatomy best for?
05
What cases is TruNatomy best for?
Answer
TruNatomy® is best suited for: dentin preservation, conservative access, minimally invasive.
06What speed and torque settings are recommended for TruNatomy?
06
What speed and torque settings are recommended for TruNatomy?
Answer
Recommended settings: 500 RPM and 1.
- 015 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. TruNatomy: sequence, speed and torque settings. EndoGuide. Updated: 2026-04-24. https://endo-guide.app/system/trunatomy
BibTeX
@misc{endoguide-trunatomy,
author = {Yüksel, Levent},
title = {TruNatomy: sequence, speed and torque settings},
howpublished = {\url{https://endo-guide.app/system/trunatomy}},
year = {2026},
note = {EndoGuide. Updated: 2026-04-24}
}Powered by:Uzm. Dt. Levent Yüksel
@endoguideappIndependent educational resource. Product names and trademarks belong to their respective manufacturers, who neither sponsor nor endorse EndoGuide.