Endodontics · single question
Which of the following is NOT a method to determine the number of roots/canals on a tooth?
Show answer and explanation
Correct answer: D. Apex locator
- A. Radiographs (including angled shots) reveal root/canal anatomy.
- B. CBCT shows root and canal number three-dimensionally.
- C. Direct inspection of the pulpal floor reveals canal orifices.
- D. Correct. An apex locator measures working length (distance to the apical foramen); it does not count roots or canals.