Which instrument is used to remove tissue from within the root canal?

• A. Root canal file
• B. Apex locator
• C. Barbed broach
• D. Articulating paper

Answer: (C)

The task of removing tissue from inside the root canal is best done with a barbed broach. This instrument is a thin, flexible wire with small barbs that grip soft tissue. When inserted into the canal and gently withdrawn, the barbs catch and pull pulp tissue or debris out of the canal spaces, making it easier to clean and irrigate thoroughly.

A root canal file, on the other hand, is mainly for shaping and enlarging the canal by cutting dentin, not for removing soft tissue. An apex locator helps determine working length, and articulating paper is used to check occlusion marks, not for tissue removal.