Endodontics · single question
Which tooth has the most prominent MESIAL root concavity?
Show answer and explanation
Correct answer: D. Maxillary first premolar
The maxillary first premolar has a significant mesial root concavity ('developmental depression'), critical for scaling/root planing technique.
- A. ❌ Maxillary first molar has root furcation complexity.
- B. ❌ Mandibular first premolar has a simpler root form.
- C. ❌ Mandibular first molar has complex root anatomy but mesial concavity is specific to maxillary first premolar.
- D. ✅ CORRECT – Maxillary first premolar has a pronounced mesial root concavity; challenging for periodontal instrumentation.