Our atlas of Dental Anatomy is full of high yield facts for INDBE test prep, designed to help you ace dental school from day one.
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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
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