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 |
|---|---|---|---|---|
| R1 | 0.15 | 6% | 600 | 1.5 |
| iRaCe Plus | ||||
| R1a | 0.20 | 2% | 600 | 1.5 |
| R1b | 0.25 | 2% | 600 | 1.5 |
| R2 | 0.25 | 4% | 600 | 1.5 |
| R3 | 0.30 | 4% | 600 | 1.5 |
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
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