Endodontics · single question
Which method will NOT tell you how many roots a tooth has?
Show answer and explanation
Correct answer: A. Apex locator
- A. Correct. An electronic apex locator measures impedance to determine the position of the apical constriction in a single canal being instrumented — it says nothing about the number of roots.
- B. Angled (SLOB technique) periapicals separate superimposed roots and reveal additional ones.
- C. CBCT gives three-dimensional root and canal anatomy — the most definitive imaging method.
- D. Surgical exposure allows direct assessment of root number and morphology.