Premolar Overview

Question 1

What are the anatomical structures that make up the borders of an occlusal table?

Answer 1

Mesial & Distal marginal ridges, Buccal and Lingual Cusps (M & D cusp ridges of each cusp)

Question 2

What anatomical features are found within an occlusal table?

Answer 2

M & D pits, Central groove, M & D fossa

Question 3

How many developmental lobes are normally found in premolars?

Answer 3

4 lobes (5 lobes on a 3 cusp premolar)

Question 4

How many developmental lobes make up the facial cusps of premolars?

Answer 4

3 lobes (MB, Mid-Buccal, DB)

Question 5

What is a transverse ridge?

Answer 5

Two triangular ridges that line up on opposing cusps

Question 6

From an occlusal view, which premolar would show more of the facial surface?

Answer 6

Mandibular (angled lingual to fit within the maxillary arch)

Question 7

Compare the relative MD and FL dimensions of a maxillary premolar.
a. Mandibular premolar.

Answer 7

FL > MD

a. FL > MD

Question 8

Which teeth do the premolars succeed?

Answer 8

Primary molars (only succedaneous teeth to be replaced by a different names tooth)