TruNatomy®
Dentsply Sirona
TruNatomy®
Dentsply Sirona
Slim 0.8mm MFD with off-centered parallelogram cross-section preserves peri-cervical dentin while maintaining shaping efficiency
Continuous Rotation · Heat-Treated NiTi
- RPM
- Ncm1.5
- File
- 6
- Verified
Specifications
Tap icons for term definitions
| File | Tip | Taper | SpeedRPM | TorqueNcm |
|---|---|---|---|---|
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. | ||||
Orifice Modifierpurple | 0.20 | 8% | 500 | 1.5 |
Gliderwhite | 0.17 | 2%v | 500 | 1.5 |
Smallyellow | 0.20 | 4%v (regressive) | 500 | 1.5 |
Primered | 0.26 | 4%v (regressive) | 500 | 1.5 |
Mediumgreen | 0.36 | 3%v (regressive) | 500 | 1.5 |
Largeblack | 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)
- 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 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
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Use cases
Collections
Clinical guides
Frequently Asked Questions
What alloy is TruNatomy made from?
What alloy is TruNatomy made from?
Answer
TruNatomy® is manufactured from Heat-Treated NiTi.
How many files are in the TruNatomy sequence?
How many files are in the TruNatomy sequence?
Answer
The TruNatomy® system includes 6 files: Orifice Modifier, Glider, Small, Prime, Medium, Large.
What is the TruNatomy file sequence?
What is the TruNatomy file sequence?
Answer
TruNatomy® is used in this order: Orifice Modifier → Glider → Small → Prime → Medium → Large.
- Per-file speed, torque and technique are in the protocol section above.
What motion type does TruNatomy use?
What motion type does TruNatomy use?
Answer
TruNatomy® uses continuous rotation motion.
What cases is TruNatomy best for?
What cases is TruNatomy best for?
Answer
TruNatomy® is best suited for: dentin preservation, conservative access, minimally invasive.
What speed and torque settings are recommended for TruNatomy?
What speed and torque settings are recommended for TruNatomy?
Answer
Recommended settings: 500 RPM and 1.5 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: 2026-10-03. 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: 2026-10-03}
}Powered by:Uzm. Dt. Levent Yüksel
@endoguideappIndependent educational resource. Product names and trademarks belong to their respective manufacturers, who neither sponsor nor endorse EndoGuide.