Endodontics · single question
Which permanent tooth is LEAST likely to have two root canals?
Show answer and explanation
Correct answer: B. Maxillary central incisor
The maxillary central incisor is overwhelmingly single-canaled, with the lowest incidence of two canals. ⚠️ Source flagged as 'Miss info.'
- A. ❌ Mandibular centrals can have two canals (~10–30%).
- B. ✅ CORRECT – Maxillary central incisors are almost always single-canaled.
- C. ❌ Maxillary laterals have more variation than maxillary centrals.
- D. ❌ Mandibular lateral incisors have up to 40% incidence of two canals.