# One Curve vs 2Shape

Micro-Mega (COLTENE)

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

## One Curve®

Micro-Mega (COLTENE)

Single-File Simplicity

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

## 2Shape®

Micro-Mega (COLTENE)

Two-File Simplicity

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

Clinical Tip

Same manufacturer, one file versus two. One Curve shapes most canals with a single pre-bendable C.Wire 25/.06 at 300 RPM / 2.5 Ncm, single-use; 2Shape uses TS1 (25/.04) then TS2 (25/.06) in T.Wire at 250–400 RPM, reusable for up to 5 canals per its IFU, and its IFU excludes retreatment use. Choose One Curve for single-file speed, 2Shape for a two-step progression and reuse.

## Specifications

| — | One Curve | 2Shape |
| --- | --- | --- |
| Manufacturer | Micro-Mega (COLTENE) | Micro-Mega (COLTENE) |
| Alloy | C.Wire NiTi | T.Wire Heat-Treated NiTi |
| Heat Treatment | C-Wire | Other |
| Motion | Continuous Rotation | Continuous Rotation |
| Files | 4 | 4 |
| Taper | 6%, 4% | .04, .06 |
| Cross-section | Variable | Asymmetrical triple helix |
| Speed | 300 RPM | 250 RPM |
| Torque | 2.5 Ncm | 2–2.5 Ncm |
| Use Type | Single-use | Reusable (limited) |

## Best For

One Curve

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

2Shape

simplified 2-file shapingEU/ME market standardasymmetrical triple helix debris removal

## Key Features

One Curve

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

2Shape

Intuitive 2-file sequence (TS1+TS2) with asymmetrical triple helix cross-section and T.Wire heat treatment

[One Curve Full protocol](https://endo-guide.app/system/one-curve)[2Shape Full protocol](https://endo-guide.app/system/two-shape)

## Related Clinical Links

Manufacturer pages

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

Motion categories

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

Related comparisons

[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)[One Curve vs ProTaper Gold](https://endo-guide.app/compare/one-curve-vs-protaper-gold)[2Shape vs TruNatomy](https://endo-guide.app/compare/trunatomy-vs-two-shape)[2Shape vs ProTaper Gold](https://endo-guide.app/compare/protaper-gold-vs-two-shape)[2Shape vs ProTaper Next](https://endo-guide.app/compare/protaper-next-vs-two-shape)

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)

![Uzm. Dt. Levent Yüksel](https://endo-guide.app/images/levent-yuksel.jpg)

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/)

Powered by:[Uzm. Dt. Levent Yüksel](https://www.instagram.com/endoleventyuksel/)

[@endoguideapp](https://www.instagram.com/endoguideapp/)

Independent educational resource. Product names and trademarks belong to their respective manufacturers, who neither sponsor nor endorse EndoGuide.

---

Canonical HTML: https://endo-guide.app/compare/one-curve-vs-two-shape · Agent guide: https://endo-guide.app/llms.txt