# K3XF vs ProTaper Gold

Kerr Endodontics · Dentsply Sirona

[TR](https://endo-guide.app/tr/compare/k3xf-vs-protaper-gold)

## K3XF™

Kerr Endodontics

R-Phase Enhanced K3 Design

[View protocol →](https://endo-guide.app/system/k3xf)

## ProTaper Gold®

Dentsply Sirona

The Gold Standard

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

Clinical Tip

ProTaper Gold shapes with progressive-taper files in a fixed SX–F5 sequence at 300 RPM with graduated torque ranges; K3XF is a constant-taper matrix (.04–.12, sizes 15–40) in R-Phase NiTi at 350 RPM / 3.0 Ncm, pre-bendable and reusable within limits. Choose ProTaper Gold for a fixed sequence with independent evidence, K3XF for free size/taper selection and reuse.

## Specifications

| — | K3XF | ProTaper Gold |
| --- | --- | --- |
| Manufacturer | Kerr Endodontics | Dentsply Sirona |
| Alloy | R-Phase™ Heat-Treated NiTi | Gold Heat-Treated NiTi |
| Heat Treatment | R-Phase | Gold Heat-Treated |
| Motion | Continuous Rotation | Continuous Rotation |
| Files | 24 | 8 |
| Taper | Variable | Variable |
| Cross-section | Asymmetric Triple-Fluted | Convex triangular, Concave triangular |
| Speed | 350 RPM | 300 RPM |
| Torque | 3 Ncm | 1.5–5 Ncm |
| Use Type | Reusable (limited) | Reusable (limited) |

## Best For

K3XF

versatile multi-taper rotary shapingclinicians familiar with K3 techniquecases requiring wide taper selection (.04-.12)

ProTaper Gold

versatile multi-file sequencecomplex anatomygraduated shaping

## Key Features

K3XF

Original K3 asymmetric triple-fluted design enhanced with R-Phase heat treatment for improved flexibility and cyclic fatigue resistance

ProTaper Gold

Variable taper design with progressive engagement

[K3XF Full protocol](https://endo-guide.app/system/k3xf)[ProTaper Gold Full protocol](https://endo-guide.app/system/protaper-gold)

## Related Clinical Links

Manufacturer pages

[Kerr Dental Systems](https://endo-guide.app/manufacturer/kerr)[Dentsply Sirona Systems](https://endo-guide.app/manufacturer/dentsply-sirona)

Motion categories

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

Related comparisons

[K3XF vs EdgeFile X7](https://endo-guide.app/compare/edgefile-x7-vs-k3xf)[K3XF vs EndoSequence](https://endo-guide.app/compare/endosequence-vs-k3xf)[K3XF vs ZenFlex](https://endo-guide.app/compare/k3xf-vs-zenflex)[ProTaper Gold vs ProTaper Ultimate](https://endo-guide.app/compare/protaper-gold-vs-protaper-ultimate)[ProTaper Gold vs ProTaper Next](https://endo-guide.app/compare/protaper-gold-vs-protaper-next)[ProTaper Gold vs TruNatomy](https://endo-guide.app/compare/protaper-gold-vs-trunatomy)

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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