Topics in Tooth Morphology

Lower 7 (Second Molar)

From the DentTest dentistry textbook. Last updated 6 August 2026.

Key features:

Aspect

Area

Features

Buccal

Cusps

  • Four cusps; 2 buccal, 2 lingual

Roots

  • Two roots; 1 mesial, 1 distal

Lingual

Cusps

  • Mesial cusps larger than distal cusps

Mesial/distal

Cusps

  • Buccal cusps tilts lingually

  • Lingual cusps overhang root

Occlusal

Crown

  • Wider mesially than distally

Fissure

  • Cruciate