Endodontic, Prosthodontic and Orthodontic Assist · CDA

Which instrument is used during endodontic treatment to measure the length of the root canal?

  1. Gutta-percha cone
  2. File stop
  3. Apex locator
  4. Barbed broach
Show answer and explanation

Correct answer: Apex locator

An apex locator electronically determines canal length. This helps ensure accurate cleaning and filling of the root canal.

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