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S-Shaped Root Canal: The Danger Zone

The Canal That Breaks Files

S-shaped canals and the one zone that gets everyone

The Canal That Breaks Files

Two Curves, Opposite Directions

What It Is

The coronal third curves one way, the apical third curves back. That reversal is everything.

Two Curves, Opposite Directions

Files Break at the Fulcrum

The Risk

D7 The danger zone where both curves meet, file stress peaks

Files Break at the Fulcrum

Pre-Curve. Short Strokes. Slow Speed.

How To Manage

Pre-curve your hand files, never force rotation, and use 300 rpm max with reciprocation.

Pre-Curve. Short Strokes. Slow Speed.

Respect the S. Don't Rush It.

Every separated file started as an ignored curve.

Respect the S. Don't Rush It.
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