Dental anatomy

Welcome to your first dental school course! We’re so glad you’re here.

How to use our 3D models:

To Rotate: Click with the left mouse button, hold, and move the cursor as needed.
To Zoom In: Scroll up.
To Zoom Out: Scroll down.

In order to provide you the highest quality models, please allow some time for them to load.

Mandibular First Premolars (#21, 28)

1. They have a prominent triangular ridge.
2. The separate mesial and distal pits create “snake eyes” appearance (see blue dots).
3. The mesial lingual developmental groove is an identifying characteristic.
5. The occlusal shape is a diamond.
6. They are the only premolar to frequently have only one pulp horn.

Pictured here: Tooth #28

Mandibular Second Premolars (#20, #29)

1. They are most likely to have a crescent-shaped central developmental groove.
2. The Y-type mandibular second premolars have one facial and two lingual cusps.
3. They are the only premolar to have multiple lingual cusps, a lingual groove, and a central fossa.
4. The are the most congenitally missing premolar in the mouth
5. The occlusal outline is pentagonal, while the occlusal table is rectangular.

Pictured here: Tooth #29

1     2     3      4     5     6     7
Join our mailing list.
Be the first to hear about new additions to our library, test prep, and more!
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.