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Questions and Answers
What is the number of maxillary premolars in the permanent dentition?
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?
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?
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?
What is the geometric outline of the buccal aspect of a maxillary first premolar?
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What is the relationship between the crown length of a maxillary first premolar and that of a canine?
What is the relationship between the crown length of a maxillary first premolar and that of a canine?
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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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