Tooth Morphology: Lingual and Buccal Aspects Comparison
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Questions and Answers

What is the typical number of roots for a permanent maxillary second molar (tooth #7)?

  • 1 root
  • 2 roots
  • 4 roots
  • 3 roots (correct)

    • How many lobes does a permanent maxillary second molar (tooth #7) typically have?

  • 3 lobes
  • 4 lobes (correct)
  • 5 lobes
  • 2 lobes

    • How do the buccal cusps of a permanent maxillary second molar (tooth #7) typically compare to those of a permanent maxillary first molar (tooth #6)?

  • The buccal cusps are shorter and smaller in the second molar compared to the first molar
  • The buccal cusps are equal in size
  • The distobuccal cusp is longer and broader than the mesiobuccal cusp
  • The mesiobuccal cusp is longer and broader than the distobuccal cusp (correct)

    • How do the roots of a permanent maxillary second molar (tooth #7) typically compare to those of a permanent maxillary first molar (tooth #6)?

    <p>The roots are less divergent and closer together in the second molar</p> Signup and view all the answers

    What is the typical shape of the occlusal surface of a permanent maxillary second molar (tooth #7)?

    <p>Square</p> Signup and view all the answers

    Where is the apex of the mesiobuccal root typically located in relation to the buccal developmental groove of a permanent maxillary second molar (tooth #7)?

    <p>The apex is in line with the buccal developmental groove</p> Signup and view all the answers

    How does the width (mesio-distal dimension) of the crown of a permanent maxillary second molar (tooth #7) typically compare to that of a permanent maxillary first molar (tooth #6)?

    <p>The crown is narrower in the second molar</p> Signup and view all the answers

    What is the typical number of cusps on the occlusal surface of a permanent maxillary second molar (tooth #7)?

    <p>4 cusps</p> Signup and view all the answers

    How does the length of the buccal developmental groove on a permanent maxillary second molar (tooth #7) typically compare to that of a permanent maxillary first molar (tooth #6)?

    <p>The buccal developmental groove is shorter in the second molar</p> Signup and view all the answers

    What is the typical position of the mesiobuccal and distobuccal roots of a permanent maxillary second molar (tooth #7) relative to each other?

    <p>The roots are closer together and nearly parallel</p> Signup and view all the answers

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