by a mesiodistal occlusal fissure.

The maxillary premolars are trapezoidal in shape, while the mandibular premolars are rhomboidal in shape.

Maxillary first premolar

Source:
* The crown of the tooth appears ovoid, wider buccally than palatally
* From a buccal view, the first premolar is similar to the adjacent canine
* Roots: Two roots buccal and palatal. Sometimes (40%) there is only one root.

Maxillary second premolar

Source:
* Similar to maxillary first premolar but the mesio-buccal

1.Previous
3.Next