Dental General facc7878

What is the advantage of crown down technique:

Zipping is less.

Working length is less likely to change.

Better penetration of irrigants.

All of the above.

High-Yield Explanation

Crown-down technique/step back = telescoping technique: Coronal 2/3rd preparation with 15, 20, 25 H file GG drill to flare. Apical segment preparation with 10, 15 no. file coronal segment. Advantages: ZIPPING is less, working length less likely to change, better penetration of irrigant.

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