Tooth Morphology Quiz
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Questions and Answers

Which statement correctly describes the orientation of the maxillary central incisor incisal edge?

  • It is inclined lingually.
  • It is perpendicular to the horizontal plane. (correct)
  • It slightly inclines distally.
  • It is vertical and labially inclined.
  • What is the orientation of the lateral incisor when viewed from the front?

  • Vertical and positioned buccally.
  • Slightly labially raised approximately 1 mm. (correct)
  • Slightly inclined mesially.
  • Completely horizontal.
  • In what orientation is the canine typically positioned when viewed from the side?

  • Inclined buccally in the cervical third.
  • Completely vertical.
  • Tilted lingually.
  • Inclined distally or vertically. (correct)
  • How does the long axis of the maxillary canine typically orient when viewed from the side?

    <p>Vertical or inclined slightly distally.</p> Signup and view all the answers

    What is the relationship of the maxillary teeth to the mandibular occlusion rim?

    <p>They touch at the incisal edge.</p> Signup and view all the answers

    Where is the most acceptable position for the posterior teeth in relation to the alveolar ridge?

    <p>On the crest of the ridge</p> Signup and view all the answers

    What does balanced occlusion require for the arrangement of posterior teeth?

    <p>Cusps to follow lateral and anteroposterior curves</p> Signup and view all the answers

    Which curve is defined as the curvature of the mandibular occlusal plane starting at the canine?

    <p>Curve of Spee</p> Signup and view all the answers

    Monson’s articulator is based on which theory of occlusion?

    <p>Spherical theory</p> Signup and view all the answers

    What is the relationship of the palatal cusp of the first premolar to the occlusal plane?

    <p>Raised 0.5 mm from the occlusal plane</p> Signup and view all the answers

    How does the long axis of the upper first and second premolars orient when viewed from the side?

    <p>Parallel to the vertical axis</p> Signup and view all the answers

    What defines the Curve of Wilson?

    <p>A line drawn from left mandibular to right mandibular first molar</p> Signup and view all the answers

    Which of the following describes the curve of Monson?

    <p>It is based on a spherical concept of occlusion</p> Signup and view all the answers

    In a balanced occlusion, the posterior teeth must create which of the following?

    <p>Both anteroposterior and lateral curves</p> Signup and view all the answers

    What is the inclination of the long axis of the upper first molar when viewed from the front?

    <p>Slightly upward mesially</p> Signup and view all the answers

    Which cusp of the upper first molar is in contact with the horizontal plane?

    <p>Only the mesiopalatal cusp</p> Signup and view all the answers

    What is true about the long axis inclination of the lower second molar?

    <p>It is more prominent than the first molar</p> Signup and view all the answers

    Where does the mesiobuccal cusp of the maxillary first molar typically lie?

    <p>In the mesiobuccal groove of the lower first molar</p> Signup and view all the answers

    Which cusp of the maxillary first molar contacts the central fossae of the lower first molar?

    <p>Lingual cusps</p> Signup and view all the answers

    What relationship does the buccal cusp of the lower first premolar have with the upper first premolar?

    <p>It touches the mesial marginal ridge of the upper first premolar</p> Signup and view all the answers

    What should be ensured if maxillary posterior teeth are set first?

    <p>Reduction of mesiodistal width of the lower first premolar may be necessary</p> Signup and view all the answers

    How do the buccal cusps of the upper posterior teeth interact with the lower posterior teeth?

    <p>The upper cusps overlap the lower</p> Signup and view all the answers

    Which of the following teeth occlude with two teeth in the opposite jaw?

    <p>Every tooth except specific exceptions</p> Signup and view all the answers

    Study Notes

    Tooth Morphology

    • Incisors (Maxillary Central):

      • Long axis viewed from the front is perpendicular to the horizontal plane.
      • Long axis viewed from the side is slightly labial.
      • Incisal edge touches the mandibular occlusion rim.
    • Incisors (Maxillary Lateral):

      • Long axis viewed from the side is inclined slightly distally.
      • Slightly labial.
      • Raised approximately 1 mm.
    • Canines:

      • Long axis can be vertical or inclined slightly distally.
      • Cervical third is inclined buccally.
      • Touches the mandibular occlusion rim.

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    Description

    Test your knowledge on the different types of maxillary incisors and canines. This quiz covers the anatomical features and orientations of specific teeth, including their relations to the occlusion rim. Perfect for dental students or professionals looking to refresh their skills!

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