Which tooth usually has the most prominent eminence that corresponds to its root?

• A. Central incisor
• B. Lateral incisor
• C. Canine tooth
• D. First premolar

Answer: (C)

The canine tooth is the one that usually shows the most prominent eminence in the facial bone over its root. This comes from its long root and the thick buccal cortical plate that overlie it, creating a distinct, noticeable bulge called the canine eminence. That prominence tracks with the length and position of the root, so you can clearly feel it as a pronounced contour in the maxillary arch.

In comparison, the central and lateral incisors have shorter roots and flatter labial surfaces, so their surrounding bone isn’t as bulging. The first premolar can have a noticeable buccal contour, but its root isn’t as long or as prominently positioned Labially as the canine’s, so the bulge isn’t as pronounced. Clinically, recognizing the canine eminence helps with locating landmarks for injections and understanding how deep or broad the bone may be in that region.