FKG Dentaire
iRaCe®
Simplified 3-file sequence (R1-R2-R3) with iRaCe Plus extension for difficult canals — alternating cutting edges and triangular cross-section at 600 RPM
| File | Tip | Taper | Speed rpm | Torque Ncm | Role |
|---|---|---|---|---|---|
| R1 | 0.15 | 6% | 600 | 1.5 | Shaping |
| iRaCe Plus | |||||
| R1a | 0.20 | 2% | 600 | 1.5 | Shaping |
| R1b | 0.25 | 2% | 600 | 1.5 | Shaping |
| R2 | 0.25 | 4% | 600 | 1.5 | Shaping |
| R3 | 0.30 | 4% | 600 | 1.5 | Finishing |
All iRaCe files operate at 600 RPM and 1.5 Ncm (per IFU). FKG speed/torque chart shows 400 RPM minimum, 600 RPM optimal.
The iRaCe Plus sequence (R1a 20/.02 + R1b 25/.02) is for difficult cases: narrow, severely curved, or calcified canals where R1 (15/.06) cannot reach working length (per IFU).
After R1a and R1b reach working length, continue with the standard R2 and R3 to complete preparation.
Golden rules (per IFU): long back-and-forth gentle strokes; light touch, let the instrument work; 3-4 seconds at a time, then withdraw, clean blade, and irrigate.
Alternating cutting edges reduce screw-in tendency (per brochure).
Electropolished surface may improve corrosion resistance (per brochure).
Safety Memo Disc (SMD) provides visual usage tracking: pull off 1 petal per simple case, 2 per medium case, 4 per difficult case (per IFU).
Single patient use is recommended to avoid cross-contamination (per IFU). If reprocessed, autoclave at 134°C, 2.2 bar, 18 min per EN/ISO 17664 protocol.
Obturation Techniques
Single cone, warm vertical, carrier-based & lateral compaction
From FKG Dentaire Systems
Manufacturer page
FKG Dentaire SystemsOther continuous rotation systems
Motion category
Continuous RotationComparisons
Alloy
Conventional NiTiCollections
Clinical guides
What alloy is iRaCe made from?
Answer
iRaCe® is manufactured from Conventional NiTi (Electropolished).
How many files are in the iRaCe sequence?
Answer
The iRaCe® system includes 5 files: R1, R1a, R1b, R2, R3.
What is the iRaCe file sequence?
Answer
iRaCe® is used in this order: R1 → R1a → R1b → R2 → R3.
What motion type does iRaCe use?
Answer
iRaCe® uses continuous rotation motion.
What cases is iRaCe best for?
Answer
iRaCe® is best suited for: simplified 3-file rotary sequence, difficult canals via iRaCe Plus extension (narrow, curved, calcified), individual file selection approach.
What speed and torque settings are recommended for iRaCe?
Answer
Recommended settings: 600 RPM and 1.
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.
Citation formats for the manufacturer-verified specification data on this page.
AMA
Yüksel L. iRaCe: sequence, speed and torque settings. EndoGuide. Updated: 2026-03-22. https://endo-guide.app/system/irace
BibTeX
@misc{endoguide-irace,
author = {Yüksel, Levent},
title = {iRaCe: sequence, speed and torque settings},
howpublished = {\url{https://endo-guide.app/system/irace}},
year = {2026},
note = {EndoGuide. Updated: 2026-03-22}
}Independent educational resource. Product names and trademarks belong to their respective manufacturers, who neither sponsor nor endorse EndoGuide.