Upper right second molar

Dens molaris

SkeletalSkeletonHeadRight side

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What it is
Large grinding tooth with four cusps around a central fossa and three roots (two buccal, one palatal). The crown is covered with enamel, the hardest substance in the body.
Function
Grinds food into a paste during chewing.
Size
Crown ≈ 9.0 × 11.0 mm, 7.0 mm tall; root ≈ 12 mm
Clinical note
The second molar erupts at about 12 years.