Buccinator Mechanism Anatomy
30 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the main function of the buccinator mechanism?

  • Forms the roof of the mouth for swallowing
  • Anchors at the pharyngeal tubercle for speech production
  • Supports the tongue for taste perception
  • Encircles the dentition and helps in chewing (correct)

    • What is the typical respiration pattern in infants according to Bosma and his co-workers' analysis?

  • Breathing through both the nose and mouth simultaneously
  • Quiet respiration through the nose with tongue near the palate (correct)
  • No specific pattern observed in infants
  • Mouth breathing with lips not meeting

    • Which muscle group exerts an outward force opposite to the buccinator mechanism?

  • Infrahyoid muscles
  • Suprahyoid muscles
  • Accessory muscles of mastication
  • Muscles of mastication (correct)

    • Which condition is more commonly associated with mouth breathing?

    <p>High and narrow palate</p> Signup and view all the answers

    Which muscle is not part of the muscles of mastication?

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

    What is the effect of mouth breathing on the position of the tongue?

    <p>Tongue position is low and forward</p> Signup and view all the answers

    What is the primary role of suprahyoid muscles in the stomatognathic system?

    <p>Helping in swallowing</p> Signup and view all the answers

    Which dental condition is frequently observed in individuals with mouth breathing?

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

    What happens during mastication or chewing process?

    <p>Food is crushed and ground by teeth</p> Signup and view all the answers

    Which muscle group does NOT belong to the accessory muscles of mastication?

    <p>Medial Pterygoid</p> Signup and view all the answers

    What dental term is used to describe the demarcation between affected and unaffected gingiva?

    <p>'Worwick' tension ridge</p> Signup and view all the answers

    What is the characteristic feature of Bruxism?

    <p>Increase in tonic activity in jaw muscles</p> Signup and view all the answers

    What factors can increase muscle tone and lead to non-functional clenching?

    <p>Psychic tension and occlusal discrepancies</p> Signup and view all the answers

    Which condition is also known as perverted swallow or tongue thrust syndrome?

    <p>Abnormal swallow</p> Signup and view all the answers

    What happens to the tip of the tongue in tongue thrust syndrome during swallowing?

    <p>Placed against or between the teeth</p> Signup and view all the answers

    What prevents masseter muscle activity in individuals with abnormal swallowing?

    <p>Tongue placed between the teeth</p> Signup and view all the answers

    Which of the following describes gum pads in a neonate's mouth?

    <p>Segmented oral mucous membrane developing tooth sites</p> Signup and view all the answers

    What is a common consequence of increased muscle tone according to the text?

    <p>Non-functional clenching</p> Signup and view all the answers

    During which stage are teeth of both deciduous and permanent dentition seen?

    <p>Mixed dentition stage</p> Signup and view all the answers

    What is the significance of the first permanent molars in occlusion?

    <p>They play an important role in establishing and functioning of occlusion in permanent dentition</p> Signup and view all the answers

    In what kind of relationship does the permanent first molar initially erupt when deciduous second molars are in a flush terminal plane?

    <p>Class I molar relation</p> Signup and view all the answers

    What happens when deciduous second molars are in a distal step during the mixed dentition stage?

    <p>The permanent first molar erupts into a class II relation</p> Signup and view all the answers

    What influences the anteroposterior positioning of permanent molars?

    <p>Terminal plane relationship</p> Signup and view all the answers

    At what age do first permanent molars typically erupt?

    <p>6 years old</p> Signup and view all the answers

    What is the effect of impingement from the roots shifting incisally with eruption of canines?

    <p>Driving the incisor crowns medially</p> Signup and view all the answers

    What is the total sum of the mesio-distal width difference between primary and permanent incisors in the maxilla?

    <p>7.6mm</p> Signup and view all the answers

    What activities occur simultaneously during the eruption of succedanaeous teeth?

    <p>Root lengthening, bone height increase, tooth movement through bone</p> Signup and view all the answers

    What happens to the permanent tooth if a primary tooth is extracted before permanent eruptive movements start?

    <p>The permanent tooth is delayed in eruption</p> Signup and view all the answers

    What is the obligate space requirement for incisors to erupt in normal alignment?

    <p>$7.6mm$ in maxilla and $6mm$ in mandible</p> Signup and view all the answers

    Which factor contributes to the closure of diastema during incisor eruption?

    <p>$7.6mm$ width increase in maxillary permanent incisors</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser