Topics in Tooth Morphology

Lower 5 (Second Premolar)

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

Key features:

Aspect

Area

Features

Buccal

Crown

  • Mesial slope shorter than distal slope

Cusps

  • Two or three cusps; 1 buccal, 1 or 2 lingual

Root

  • Single root curved distally

Lingual

Cusps

  • Mesiolingual cusp taller than distolingual cusp

Mesial/distal

Cusps

  • Buccal cusp tilts lingually

  • Lingual cusp overhangs root

Occlusal

Crown

  • Shape: rounded square

Cusps

  • Mesiolingual cusp larger than distolingual cusp