Angle's Classification of Malocclusion Flashcards
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Questions and Answers

Who is considered the father of modern orthodontics and was the first to classify malocclusion?

  • John Doe
  • Edward Angle (correct)
  • Orthodontist X
  • Dr. Smith

    • What is Class I or neutrocclusion?

    The MB of the maxillary first molar occludes with the MB groove of the mandibular first molar.

    What is the Class I canine relationship?

    Maxillary canine occludes with the distal half of the mandibular canine and mesial half of the mandibular first premolar.

    Describe Class II or distocclusion.

    <p>Maxillary first molar is even with or posterior to the mandibular first molar; the buccal of the mandibular first molar is distal to the mesiobuccal cusp of the maxillary first molar.</p> Signup and view all the answers

    What characterizes Class II division 1?

    <p>Similar molar relationships as Class II, with permanent maxillary central incisors slightly protruded or a large overjet present.</p> Signup and view all the answers

    What does retrognathic mean?

    <p>Convex face profile resulting from a mandible that is too small or a maxilla that is too large.</p> Signup and view all the answers

    Describe Class II division 2.

    <p>Molar relationships are Class II where the maxillary central incisors are retroclined and may show a deep bite.</p> Signup and view all the answers

    What is the Class II molar relationship?

    <p>The MB cusp of the maxillary first molar occludes with the corresponding feature of the mandibular molar.</p> Signup and view all the answers

    Define Class III mesioocclusion.

    <p>The mesiobuccal cusp of the maxillary first permanent molar occludes distally to the mesiobuccal groove of the mandibular first molar.</p> Signup and view all the answers

    What is the Class III canine relationship?

    <p>Distal surface of the mandibular canines are mesial to the mesial surface of the maxillary canines; mandibular incisors are in complete crossbite.</p> Signup and view all the answers

    What does prognathic refer to?

    <p>A concave face profile with a prominent mandible associated with Class III malocclusion.</p> Signup and view all the answers

    What is the definition of Class I?

    <p>Not provided in the flashcards.</p> Signup and view all the answers

    What is the definition of Class II?

    <p>Not provided in the flashcards.</p> Signup and view all the answers

    What is the definition of Class II division 1?

    <p>Not provided in the flashcards.</p> Signup and view all the answers

    What is the definition of Class II division 2?

    <p>Not provided in the flashcards.</p> Signup and view all the answers

    What is the definition of Class III figure?

    <p>Not provided in the flashcards.</p> Signup and view all the answers

    What is true Class III malocclusion?

    <p>Skeletal condition which is genetic in origin due to excessively large mandibular or smaller than normal maxilla.</p> Signup and view all the answers

    What is pseudo Class III?

    <p>False or postural malocclusion occurring when the mandible shifts anteriorly during final stages of closure due to premature contact of incisors or canines.</p> Signup and view all the answers

    Study Notes

    Edward Angle

    • Recognized as the father of modern orthodontics.
    • First to classify malocclusion.

    Class I or Neutrocclusion

    • Maxillary first molar’s mesiobuccal (MB) cusp occludes with the MB groove of the mandibular first molar.

    Class I Canine Relationship

    • Maxillary canine occludes with the distal half of the mandibular canine and the mesial half of the mandibular first premolar.

    Class II or Distocclusion

    • Maxillary first molar is positioned even with or posterior to the mandibular first molar.
    • Buccal surface of the mandibular first molar is distal to the mesiobuccal cusp of the maxillary first molar.

    Class II Division 1

    • Follows Class II molar relationships.
    • Permanent maxillary central incisors are slightly protruded.
    • Characterized by a large overjet.

    Retrognathic

    • Indicates a convex facial profile.
    • Results from a smaller mandible or a larger maxilla.

    Class II Division 2

    • Molar relationships are classified as Class II.
    • Maxillary central incisors are retroclined.
    • May show proclined maxillary lateral incisors and deep bite.

    Class II Molar Relationship

    • Mesiobuccal (MB) cusp of the maxillary first molar occludes with the mandibular first molar.

    Class III Mesioocclusion

    • Mesiobuccal cusp of the maxillary first permanent molar occludes distally to the mesiobuccal groove of the mandibular first molar.

    Class III Canine Relationship

    • Distal surfaces of the mandibular canines are mesial to the mesial surface of the maxillary canines by at least the width of a premolar.
    • Mandibular incisors exhibit complete crossbite.

    Prognathic

    • Describes a concave facial profile with a prominent mandible.
    • Typically associated with Class III malocclusion.

    Class I

    • Represents the ideal occlusion relationship.

    Class II

    • A general classification indicating a discrepancy where the maxilla is positioned more anteriorly than the mandible.

    Class II Division 1

    • Permanent maxillary central incisors are protruded, often featuring a significant overjet.

    Class II Division 2

    • Maxillary incisors are retroclined with potential for deep bite.

    Class III Figure

    • Diagrammatic representation related to Class III relationships.

    True Class III Malocclusion

    • A skeletal type of malocclusion.
    • Results from genetic factors, often involving an excessively large mandible or a smaller maxilla.

    Pseudo Class III

    • A false or postural classification.
    • Occurs due to an anterior shift of the mandible during closure, often from premature contact of incisors or canines.

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    Description

    Test your knowledge on Edward Angle's classification of malocclusion with these flashcards. Understand the key terminologies such as Class I or neutrocclusion and learn about canine relationships. Perfect for orthodontic students and professionals alike.

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