Endodontics · single question
Which maxillary tooth has a prominent MESIAL CONCAVITY on its root surface?
Show answer and explanation
Correct answer: B. Maxillary first premolar
The maxillary FIRST PREMOLAR has a prominent mesial root concavity (developmental depression). Critical for perio therapy — creates a difficult-to-instrument surface predisposing to residual calculus and periodontal pockets.