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Maxillary Premolars Anatomy

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Questions and Answers

What is the number of maxillary premolars in the permanent dentition?

One in the right maxilla and one in the left maxilla

Four in the right maxilla and four in the left maxilla

Two in the right maxilla and two in the left maxilla (correct)

Three in the right maxilla and three in the left maxilla

Why are premolars named as such in the permanent dentition?

Because their crowns are longer than those of the molars

Because of their cusp development buccally and lingually

Because they are anterior to the molars (correct)

Because they are posterior to the canines

How many roots do maxillary first premolars typically have?

One root

One buccal and one lingual root (correct)

Three roots

Two buccal roots

What is the geometric outline of the buccal aspect of a maxillary first premolar?

<p>Roughly trapezoidal</p> Signup and view all the answers

What is the relationship between the crown length of a maxillary first premolar and that of a canine?

<p>Shorter than that of a canine</p> Signup and view all the answers

Study Notes

Maxillary Premolars in Permanent Dentition

There are 4 maxillary premolars in the permanent dentition.
Premolars are named as such because they erupt after the molars, but before the permanent molars.

Roots of Maxillary First Premolars

Maxillary first premolars typically have 2 roots.

Geometric Outline of Maxillary First Premolars

The buccal aspect of a maxillary first premolar has a geometric outline that is ovoid or rhomboidal in shape.

Crown Length of Maxillary First Premolars

The crown length of a maxillary first premolar is typically shorter than that of a canine.

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Description

Test your knowledge of the anatomy and characteristics of the maxillary premolars in the permanent dentition. This quiz covers their position, crown and root lengths, and their relation to other teeth.