Topics in Tooth Morphology

Lower 6 (First Molar)

From the DentTest dentistry textbook, with 1 practice question. Last updated 6 August 2026.

Key features:

Aspect

Area

Features

Buccal

Cusps

  • Five cusps; 3 buccal, 2 lingual

Roots

  • Two roots; 1 mesial, 1 distal

Lingual

Cusps

  • Mesiolingual cusp larger than distolingual cusp

Mesial/distal

Cusps

  • Buccal cusps tilts lingually

  • Lingual cusps overhang root

Occlusal

Crown

  • Rectangle shape; mesiodistal length > buccolingual widge

Fissure

  • Dryopithecus