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Describing Permanent Teeth: Structure and Characteristics

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Describing Permanent Teeth: Structure and Characteristics

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Questions and Answers

What is the shape of the geometrical outline of the crown of the lateral incisor?

Triangular (correct)

Square

Rectangular

Oval

What is the location of the incisal ridge in relation to the centre of the root?

At the cervical 1/3

On a line that bisects the centre of the root (correct)

At the incisal 1/3

At the middle 1/3

What is the shape of the root of the lateral incisor?

Oval-shaped with a rounded apex

Cone-shaped with a sharp apex

Square-shaped with a flat apex

Cone-shaped with a blunt apex (correct)

How does the labio-lingual measurement of the lateral incisor compare to the central incisor?

It is less by about 1mm Signup and view all the answers

What is the characteristic of the mesial surface of the lateral incisor?

Convex with maximum convexity at the junction of the cervical and middle 1/3s Signup and view all the answers

What is the characteristic of the lingual fossa of the lateral incisor?

It is a depression located between the elevations Signup and view all the answers

How does the cervical line curvature of the distal aspect of the lateral incisor compare to the mesial aspect?

It is less by about 1mm Signup and view all the answers

What is the characteristic of the contact area on the distal surface of the lateral incisor?

It is located at the middle 1/3 Signup and view all the answers

What is the characteristic of the root of the lateral incisor compared to the central incisor?

It appears longer Signup and view all the answers

What is the shape of the labial outline of the lateral incisor?

Convex at the cervical 1/3 and then slightly convex Signup and view all the answers