HyFlex® CM
Coltene
HyFlex® CM
Coltene
Pre-bendable like stainless steel with enhanced cyclic fatigue resistance vs conventional NiTi (manufacturer reports up to 300%, in-house bench data)
Continuous Rotation · CM-Wire (Controlled Memory NiTi)
- RPM
- Ncm2.5
- 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. | |||||
Orifice Opener 25/.08red | 0.25 | 8% | 500 | 2.5 | Shaping |
20/.04yellow | 0.20 | 4% | 500 | 2.5 | |
25/.04red | 0.25 | 4% | 500 | 2.5 | |
20/.06yellow | 0.20 | 6% | 500 | 2.5 | |
30/.04blue | 0.30 | 4% | 500 | 2.5 | |
40/.04black | 0.40 | 4% | 500 | 2.5 | Finishing |
Matching gutta-percha & paper points
- Gutta-percha
- COLTENE HyFlex CM Guttapercha Points.04 #20, .04 #25, .04 #30, .04 #35, .04 #40, .04 #45, .04 #50, .04 #60, .06 #20, .06 #25, .06 #30, .06 #35, .06 #40
- Paper points
- COLTENE HyFlex CM Paper Points.04 #15, .04 #25, .04 #30, .04 #35, .04 #45, .04 #50, .04 #60, .06 #20, .06 #25, .06 #30, .06 #35, .06 #40, .06 #45
Clinical Tips
- CM-Wire has no shape memory at room temperature — files can be pre-bent like stainless steel to follow abrupt curvatures
- Spiral lengthening under stress is a built-in safety feature that prevents wall binding and reduces fracture risk
- Shape regenerates during autoclaving — visual inspection after autoclaving serves as a discard indicator
- All files use the same motor settings: 500 RPM and up to 2.5 Ncm (current IFU; an older 2014 US IFU gave 2.4 Ncm)
- Files may arrive slightly bent due to CM properties — correct by hand before use
- A hybrid technique combining .04 and .06 tapers is the IFU-recommended approach
Warnings
- If spirals rewind in the opposite direction during use, the file is plastically deformed — discard immediately
- If spirals remain lengthened after autoclaving, the file must be discarded
- Inspect files before and after every use for visible changes in material or shape
- Do not use on patients with known nickel or titanium allergy (per 2025 IFU)
- Follow IFU reprocessing instructions — condition-based reuse, no fixed maximum cycle count
Obturation Techniques
Single cone, warm vertical, carrier-based & lateral compaction
Protocol
01Glide Path2
02Shaping4
03Finishing2
Related Systems
From Coltene Systems
Manufacturer page
Coltene SystemsOther continuous rotation systems
Motion category
Continuous RotationComparisons
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Clinical guides
Frequently Asked Questions
What alloy is HyFlex CM made from?
What alloy is HyFlex CM made from?
Answer
HyFlex® CM is manufactured from CM-Wire (Controlled Memory NiTi).
How many files are in the HyFlex CM sequence?
How many files are in the HyFlex CM sequence?
Answer
The HyFlex® CM system includes 6 files: Orifice Opener 25/.08, 20/.04, 25/.04, 20/.06, 30/.04, 40/.04.
What is the HyFlex CM file sequence?
What is the HyFlex CM file sequence?
Answer
HyFlex® CM is used in this order: Orifice Opener 25/.08 → 20/.04 → 25/.04 → 20/.06 → 30/.04 → 40/.04.
- Per-file speed, torque and technique are in the protocol section above.
What motion type does HyFlex CM use?
What motion type does HyFlex CM use?
Answer
HyFlex® CM uses continuous rotation motion.
What cases is HyFlex CM best for?
What cases is HyFlex CM best for?
Answer
HyFlex® CM is best suited for: curved canals requiring pre-bent files, anatomical shaping with multiple sizing options, reusable with autoclave regeneration.
What speed and torque settings are recommended for HyFlex CM?
What speed and torque settings are recommended for HyFlex CM?
Answer
Recommended settings: 500 RPM and 2.5 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. HyFlex CM: sequence, speed and torque settings. EndoGuide. Updated: 2026-10-03. https://endo-guide.app/system/hyflex-cm
BibTeX
@misc{endoguide-hyflex-cm,
author = {Yüksel, Levent},
title = {HyFlex CM: sequence, speed and torque settings},
howpublished = {\url{https://endo-guide.app/system/hyflex-cm}},
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.