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10 Questions

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Maxillary Central Incisor Anatomy

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Questions and Answers

What is the shape of the cross-section of the crown as described?

Rectangular

Cylindrical

Wedge-shaped or triangular (correct)

Conical

Where is the labial cervical line positioned concerning the incisal ridge?

Approximately one-third from the incisal ridge to the cervical line (correct)

Along the cervical line

Two-thirds towards the cervical line

At the incisal ridge

What characteristic is noted regarding the cervical curvature?

It is directed towards the mesial area.

It is inclined towards the distal area. (correct)

It exhibits an even distribution around the crown.

It follows a straight line from the incisal to cervical line.

What gives the impression that the distal surface appears thicker?

The slope of the labial surface distalingually. Signup and view all the answers

Which feature is described on the distal aspect of the tooth crown?

A well-defined distal angle. Signup and view all the answers

What shape is the labial surface of the maxillary central incisor?

Trapezoid with 11 sides Signup and view all the answers

How does the mesial outline of the maxillary central incisor differ from the distal outline?

The distal outline is more convex than the mesial outline with a higher crest of curvature Signup and view all the answers

Which function does the maxillary central incisor NOT perform?

Displace other teeth Signup and view all the answers

What type of surface does the lingual aspect of the maxillary central incisor exhibit?

Convex mesially and distally with concavity between marginal ridges Signup and view all the answers

Which feature is NOT found on the lingual surface of the maxillary central incisor?

Prominent central groove Signup and view all the answers