Mtwo®
Simultaneous Shaping with S-shaped cross-section — all instruments to full working length in a single sequence
| File | Tip | Taper | Speed rpm | Torque Ncm |
|---|---|---|---|---|
| 10/.04 | 0.10 | 4% | 280 | 1.2 |
| 15/.05 | 0.15 | 5% | 280 | 1.3 |
| 20/.06 | 0.20 | 6% | 280 | 2.1 |
| 25/.06 | 0.25 | 6% | 280 | 2.3 |
| 30/.05 | 0.30 | 5% | 280 | 1.2 |
| 35/.04 | 0.35 | 4% | 280 | 1.2 |
| 40/.04 | 0.40 | 4% | 280 | 1.6 |
| 45/.04 | 0.45 | 4% | 280 | 1.6 |
| 50/.04 | 0.50 | 4% | 280 | 2.0 |
| 60/.04 | 0.60 | 4% | 280 | 3.0 |
| 25/.07 | 0.25 | 7% | 280 | 2.0 |
| 30/.06 | 0.30 | 6% | 280 | 1.2 |
| 35/.06 | 0.35 | 6% | 280 | 1.0 |
| 40/.06 | 0.40 | 6% | 280 | 1.7 |
| R15/.05 | 0.15 | 5% | 280 | 0.3 |
| R25/.05 | 0.25 | 5% | 280 | 1.2 |
All files use 280 RPM (recommended; range 250-350 RPM per IFU). Torque is size-specific: 1.2 Ncm (10/.04), 1.3 Ncm (15/.05), 2.1 Ncm (20/.06), 2.3 Ncm (25/.06). VDW motors have pre-programmed Mtwo settings.
Simultaneous Shaping means each file goes to full working length — no crown-down staging. This preserves tooth substance compared to coronal-first techniques.
Brushing file movement: when resistance is felt, pull back 1-2 mm and stroke laterally against the canal wall (like a Hedstroem file), then allow the instrument to re-advance apically.
No separate coronal flaring is needed — Mtwo's lateral cutting efficiency gradually widens the canal entrance with each file used.
Apical gauging with ISO #30 hand file after the basic sequence determines if further enlargement is needed.
Retreatment files R15/.05 (narrow canals, 0.3 Ncm) and R25/.05 (medium/wide canals, 1.2 Ncm) have active cutting tips for gutta-percha removal.
Compatible with VDW.GOLD RECIPROC, VDW.SILVER RECIPROC, and VDW.CONNECT Drive motors (pre-programmed Mtwo settings available).
Obturation Techniques
Single cone, warm vertical, carrier-based & lateral compaction
From VDW Systems
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