# One Curve vs ZenFlex

Micro-Mega (COLTENE) · Kerr Dental

[TR](https://endo-guide.app/tr/compare/one-curve-vs-zenflex)

## One Curve®

Micro-Mega (COLTENE)

Single-File Simplicity

[View protocol →](https://endo-guide.app/system/one-curve)

## ZenFlex™

Kerr Dental

Controlled Memory Precision

[View protocol →](https://endo-guide.app/system/zenflex)

Clinical Tip

One Curve shapes most canals with a single pre-bendable C.Wire 25/.06 at 300 RPM / 2.5 Ncm; ZenFlex is a controlled-memory .04/.06 matrix (20–40) at 500 RPM with a 1 mm flute diameter and torque set per file. Choose One Curve for one-file simplicity, ZenFlex when you want to choose size and taper per canal within a conservative profile.

## Specifications

| — | One Curve | ZenFlex |
| --- | --- | --- |
| Manufacturer | Micro-Mega (COLTENE) | Kerr Dental |
| Alloy | C.Wire NiTi | Heat-Treated NiTi (Controlled Memory) |
| Heat Treatment | C-Wire | CM-Wire |
| Motion | Continuous Rotation | Continuous Rotation |
| Files | 4 | 10 |
| Taper | 6%, 4% | 4%, 6% |
| Cross-section | Variable | Triangular |
| Speed | 300 RPM | 500 RPM |
| Torque | 2.5 Ncm | 1–3.5 Ncm |
| Use Type | Single-use | Single-use |

## Best For

One Curve

single-file rotary simplicitycontrolled-memory flexibilitypre-bendable for difficult access

ZenFlex

minimally invasive shapingcontrolled-memory flexibilitydual taper strategy (.04/.06)

## Key Features

One Curve

Controlled-memory single-file rotary system with variable cross-section for full canal shaping

ZenFlex

Violet oxide surface with 1mm flute diameter for minimally invasive shaping and excellent flexibility

[One Curve Full protocol](https://endo-guide.app/system/one-curve)[ZenFlex Full protocol](https://endo-guide.app/system/zenflex)

## Related Clinical Links

Manufacturer pages

[Micro-Mega (COLTENE) Systems](https://endo-guide.app/manufacturer/micro-mega)[Kerr Dental Systems](https://endo-guide.app/manufacturer/kerr)

Motion categories

[Continuous Rotation](https://endo-guide.app/category/continuous-rotation)

Related comparisons

[One Curve vs 2Shape](https://endo-guide.app/compare/one-curve-vs-two-shape)[One Curve vs One Shape](https://endo-guide.app/compare/one-curve-vs-one-shape)[One Curve vs One RECI](https://endo-guide.app/compare/one-curve-vs-one-reci)[ZenFlex vs EdgeFile X7](https://endo-guide.app/compare/edgefile-x7-vs-zenflex)[ZenFlex vs K3XF](https://endo-guide.app/compare/k3xf-vs-zenflex)[ZenFlex vs TruNatomy](https://endo-guide.app/compare/trunatomy-vs-zenflex)

Independent educational reference. Always consult official manufacturer Instructions for Use (DFU) before clinical procedures.

[Found an error? Let us know](https://ig.me/m/endoleventyuksel)

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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.

[About the author](https://endo-guide.app/about)[Editorial policy](https://endo-guide.app/editorial-policy)[Clinical profile](https://drleventyuksel.com/)

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