# NIC® MH

> CM-Wire Constant Taper

- **Manufacturer:** NIC Dental (Shenzhen Superline Technology)
- **Motion:** Continuous Rotation
- **Alloy:** MaxTech High Flex CM-Wire NiTi
- **Key feature:** Fourteen constant-taper configurations (17-45 in .04 and .06) in MaxTech High Flex controlled-memory wire, with a 17/.04 pathway file and 25/.04 primary shaper

## Specifications

### MH4 (.04)

| File | Tip (mm) | Taper | Length | Cross-section | Motion | Speed (rpm) | Torque | Role |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 17/.04 | 0.17 | 4% | 21mm, 25mm, 31mm | Parabolic | Continuous Rotation | 300-500 | 3.0 Ncm | shaping |
| 20/.04 | 0.20 | 4% | 21mm, 25mm, 31mm | Parabolic | Continuous Rotation | 300-500 | 3.0 Ncm | shaping |
| 25/.04 | 0.25 | 4% | 21mm, 25mm, 31mm | Parabolic | Continuous Rotation | 300-500 | 3.0 Ncm | shaping |
| 30/.04 | 0.30 | 4% | 21mm, 25mm, 31mm | Parabolic | Continuous Rotation | 300-500 | 3.0 Ncm | shaping |
| 35/.04 | 0.35 | 4% | 21mm, 25mm, 31mm | Parabolic | Continuous Rotation | 300-500 | 3.0 Ncm | shaping |
| 40/.04 | 0.40 | 4% | 21mm, 25mm, 31mm | Parabolic | Continuous Rotation | 300-500 | 3.0 Ncm | shaping |
| 45/.04 | 0.45 | 4% | 21mm, 25mm, 31mm | Parabolic | Continuous Rotation | 300-500 | 3.0 Ncm | shaping (optional) |

### MH6 (.06)

| File | Tip (mm) | Taper | Length | Cross-section | Motion | Speed (rpm) | Torque | Role |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 17/.06 | 0.17 | 6% | 21mm, 25mm, 31mm | Parabolic | Continuous Rotation | 300-500 | 3.0 Ncm | shaping |
| 20/.06 | 0.20 | 6% | 21mm, 25mm, 31mm | Parabolic | Continuous Rotation | 300-500 | 3.0 Ncm | shaping |
| 25/.06 | 0.25 | 6% | 21mm, 25mm, 31mm | Parabolic | Continuous Rotation | 300-500 | 3.0 Ncm | shaping |
| 30/.06 | 0.30 | 6% | 21mm, 25mm, 31mm | Parabolic | Continuous Rotation | 300-500 | 3.0 Ncm | shaping |
| 35/.06 | 0.35 | 6% | 21mm, 25mm, 31mm | Parabolic | Continuous Rotation | 300-500 | 3.0 Ncm | shaping |
| 40/.06 | 0.40 | 6% | 21mm, 25mm, 31mm | Parabolic | Continuous Rotation | 300-500 | 3.0 Ncm | shaping |
| 45/.06 | 0.45 | 6% | 21mm, 25mm, 31mm | Parabolic | Continuous Rotation | 300-500 | 3.0 Ncm | shaping (optional) |

## Protocol

### Glide Path

1. **Scout with SS Hand Files** — Per the IFU, never introduce an MH file into an unscouted canal: explore with stainless steel hand files and a root-canal lubricant, confirming working length with at least a 010 K-file.
   - Pre-curve hand files for curved or difficult anatomy when required (IFU)
2. **Enlarge the Glide Path to ISO 015** — Enlarge until a smooth, reproducible 015 K-file reaches working length, irrigating and recapitulating frequently, per the IFU.
   - ⚠ Do not begin rotary shaping until the glide path is secure (IFU)

### Shaping

1. **Establish the Rotary Pathway — 17/.04** — Introduce the 17/.04 into the established glide path and advance passively in one or more controlled passes to working length, using gentle pecking movements and minimal apical pressure, per the IFU. _(File: 17/.04 · 300-500 RPM · 3.0 Ncm)_
   - Withdraw and clean the flutes frequently; irrigate and recapitulate between passes (IFU)
2. **Primary Shaping — 25/.04** — Advance the 25/.04 passively toward working length; if it meets resistance, withdraw, irrigate, recapitulate, and use the 20/.04 to establish the pathway before returning to the 25/.04, per the IFU. _(File: 25/.04 · 300-500 RPM · 3.0 Ncm)_
   - ⚠ Do not increase apical pressure to force the file to working length (IFU)

### Finishing

1. **Sequential Enlargement When Indicated** — When the 25/.04 reaches length with minimal resistance, or a larger apical preparation is clinically indicated, enlarge sequentially with 30, 35, 40 and 45 — increasing tip size one step at a time, per the IFU.
   - Select .04 taper when flexibility and conservative shaping are priorities; use .06 selectively for greater coronal enlargement (IFU)
   - Do not skip sizes; irrigate and recapitulate between every rotary file (IFU)
2. **Verify and Obturate** — Verify the final preparation and working length with the corresponding hand file, confirm the master cone fits with appropriate apical control, complete final irrigation and drying, and obturate with dimensionally compatible points, per the IFU.
   - Confirm tug-back and radiographic fit before final sealer placement (IFU)

## Clinical Tips

- Motor settings 300-500 RPM / 3.0 Ncm per the manufacturer's consolidated fact sheet (2026-08-12), which supersedes the catalog's earlier 350-400 RPM / 3-3.5 Ncm; the IFU draft itself defers to the product label
- The IFU warns against copying speed or torque settings published for other manufacturers' file systems
- Workflow per the IFU: 17/.04 establishes the rotary pathway, 25/.04 is the primary shaper, and 30-45 are used sequentially only when a larger apical preparation is clinically indicated
- Alloy: the manufacturer's consolidated fact sheet (2026-08-12) names the tier MaxTech High Flex (Controlled Memory Wire) — a newer proprietary heat treatment outside the published 3.0/6.0/9.0 numbering that NIC had earlier positioned closest to its 9.0 CM-class
- CM-wire-class behavior per the IFU: high flexibility, reduced shape memory, and the ability to follow canal curvature without actively straightening the anatomy; the file may show a slight natural curve out of the package
- The size range runs to 45 in both tapers per the IFU and the fact sheet (the 2025 catalog listed 17-40); the two 45 configurations have no product render yet
- Cross-section: parabolic per the manufacturer's consolidated fact sheet (2026-08-12), which restores the catalog's term and supersedes the IFU draft's triangular description; non-cutting guiding tip, 0.8-1.0 mm maximum flute diameter, 11 mm handle
- NIC's own cross-reference table maps the MH File to EdgeEndo X7 — a manufacturer-claimed correspondence, not independently verified
- Constant tapers (.04/.06) are positioned by the manufacturer for straightforward obturation planning with matching points
- Supplied 6 instruments per pack (IFU)
- Specifications on this page come from the manufacturer's consolidated fact sheet (2026-08-12, the controlling source), IFU draft (2026), and 2025 catalog; no independent peer-reviewed performance data exists for this system (PubMed, 2026-08-11)

## Warnings

- Single-use only per the manufacturer's IFU — reuse may increase the risk of cross-contamination, loss of cutting efficiency, or file separation
- Supplied non-sterile in this version: sterilize before first clinical use (steam autoclave 134 °C, 18 min holding time per the IFU) and discard after the procedure
- Use only in continuous clockwise rotation with a torque-controlled motor — the IFU directs against reciprocating motion
- Follow the speed and torque on the current NIC label for your files; the IFU warns against carrying over settings from other manufacturers' systems
- Do not use a file from a damaged package, or any instrument showing deformation, unwinding, corrosion, fracture, or wear (IFU)
- Avoid apical pressure: withdraw, irrigate, recapitulate, and use a smaller file rather than forcing advancement (IFU)
- Contains nickel-titanium — the IFU contraindicates use in patients with known allergic sensitivity to the material
- The IFU contraindicates mechanical use in canals with severe, sudden apical curvatures, complex canal divisions, calcified anatomy, or anatomy where safe passive file progression cannot be achieved

## Contraindications

- Known allergic sensitivity to nickel-titanium alloy or any component of the device (IFU)
- Canals with severe, sudden apical curvatures, complex canal divisions, calcified anatomy, or anatomy where safe passive file progression cannot be achieved (IFU)

## Best for

- flexible constant-taper shaping in curved canals
- 17/.04 pathway plus 25/.04 primary workflow
- reduced shape memory that follows canal anatomy

## Technical profile

- **Category:** multi-file-rotary
- **Heat treatment:** CM-Wire — MaxTech High Flex (Controlled Memory Wire) — the tier name on the manufacturer's consolidated fact sheet (2026-08-12) for this newer proprietary heat treatment outside the published 3.0/6.0/9.0 numbering: high flexibility, reduced shape memory, follows canal curvature without actively straightening it. NIC had earlier positioned it closest to its 9.0 CM-class. No independent metallurgical characterization is cited.
- **Reuse:** Single-use
- **Motor:** any-rotary
- **Glide path requirement:** manual-only — SS hand files to a reproducible ISO 015 at working length per the IFU; the 17/.04 then establishes the rotary pathway
- **Canal suitability:** Curvature: mild, moderate; Canal size: narrow, normal, wide; Calcified canals: no; Retreatment: no; Conservative access: no
- **Content revision:** 2026-08-13

## FAQ

**What alloy is NIC MH made from?**

NIC® MH is manufactured from MaxTech High Flex CM-Wire NiTi.

**How many files are in the NIC MH sequence?**

The NIC® MH system includes 14 files: 17/.04, 20/.04, 25/.04, 30/.04, 35/.04, 40/.04, 45/.04, 17/.06, 20/.06, 25/.06, 30/.06, 35/.06, 40/.06, 45/.06.

**What motion type does NIC MH use?**

NIC® MH uses continuous rotation motion.

**What cases is NIC MH best for?**

NIC® MH is best suited for: flexible constant-taper shaping in curved canals, 17/.04 pathway plus 25/.04 primary workflow, reduced shape memory that follows canal anatomy.

**What speed and torque settings are recommended for NIC MH?**

Recommended settings: 300-500 RPM and 3.0 Ncm across the file sequence (refer to official DFU for full per-file parameters).

## Related

- [HTML page](https://endo-guide.app/system/nic-mh)
- [Manufacturer hub: NIC Dental Systems](https://endo-guide.app/manufacturer/nic)
- [Compare systems](https://endo-guide.app/compare)
- Other languages: [Türkçe](https://endo-guide.app/tr/system/nic-mh.md) · [Español](https://endo-guide.app/es/sistema/nic-mh.md)
- [llms.txt](https://endo-guide.app/llms.txt) · [EndoGuide (Markdown)](https://endo-guide.app/index.md)

---

_Educational reference for dental professionals. Always confirm settings against the official manufacturer instructions for use before clinical procedures._