Lower left third molar
Dens molaris
SkeletalSkeletonHeadLeft side
- What it is
- Large grinding tooth with four cusps around a central fossa and two roots (mesial and distal). The crown is covered with enamel, the hardest substance in the body.
- Function
- Grinds food into a paste during chewing.
- Size
- Crown ≈ 10.0 × 9.5 mm, 7.0 mm tall; root ≈ 11 mm
- Clinical note
- The wisdom tooth erupts at 17–25 years, if at all, and is often impacted.