Type Traits from Diff. Views

The crown shape of maxillary premolars from the buccal view is:

Pentagon-shaped

On which maxillary premolar do mesial and distal sides converge more noticeably toward the cervical?

1st premolar

Which premolar has a mesial cusp ridge longer than the distal cusp ridge?

Maxillary 1st premolar

Where is the buccal cusp tip of the maxillary 1st premolar located relative to the root axis line?

Distal

Which maxillary premolar has the sharper buccal cusp?

1st premolar

Which maxillary premolar has the more prominent buccal ridge?

1st premolar

How are the roots typically arranged on the maxillary 1st premolar?

Two roots (buccal & lingual) splitting in apical 1/3

The apical ends of single-rooted premolars frequently bend:

Distally

How does the lingual cusp compare to the buccal cusp on maxillary premolars?

Slightly shorter

Where is the lingual cusp tip positioned relative to the midline?

Mesial

The mesial marginal ridge is located:

More occlusally than the distal

For a 2-rooted maxillary 1st premolar, the lingual root is:

Shorter and narrower mesiodistally

What unique crown feature is found on the maxillary 1st premolar?

Mesial crown concavity

Which premolar has the slightly longer buccal cusp?

Maxillary 1st premolar

Where is the facial crest of curvature located?

Cervical third

Where is the lingual crest of curvature located?

Middle third

The mesial marginal ridge of the maxillary 1st premolar is often crossed by:

Mesial marginal ridge groove

What shape are the fossae on maxillary premolars?

Triangular

The base of each triangular fossa is formed by:

Marginal ridge

Maxillary premolars are wider in which direction?

Buccolingually

On both maxillary premolars, the lingual cusp tip is slightly:

Mesial to center

The occlusal shape of the maxillary 1st premolar is:

Asymmetrical and V-shaped

Compared to the 1st premolar, the 2nd premolar is:

More symmetrical

Where is the mesial contact area located on maxillary premolars (occlusal view)?

At or near junction of occlusal and middle thirds

On the maxillary 2nd premolar, the distal contact area is located:

More lingually than mesial

Which premolar has the opposite contact area relationship compared to the 2nd premolar?

Maxillary 1st premolar