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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?

    <p>It is less by about 1mm</p> Signup and view all the answers

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

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

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

    <p>It is a depression located between the elevations</p> 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?

    <p>It is less by about 1mm</p> Signup and view all the answers

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

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

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

    <p>It appears longer</p> Signup and view all the answers

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

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

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