30 Questions
What is the main function of the buccinator mechanism?
Encircles the dentition and helps in chewing
What is the typical respiration pattern in infants according to Bosma and his co-workers' analysis?
Quiet respiration through the nose with tongue near the palate
Which muscle group exerts an outward force opposite to the buccinator mechanism?
Muscles of mastication
Which condition is more commonly associated with mouth breathing?
High and narrow palate
Which muscle is not part of the muscles of mastication?
Diagastric
What is the effect of mouth breathing on the position of the tongue?
Tongue position is low and forward
What is the primary role of suprahyoid muscles in the stomatognathic system?
Helping in swallowing
Which dental condition is frequently observed in individuals with mouth breathing?
Gingivitis
What happens during mastication or chewing process?
Food is crushed and ground by teeth
Which muscle group does NOT belong to the accessory muscles of mastication?
Medial Pterygoid
What dental term is used to describe the demarcation between affected and unaffected gingiva?
'Worwick' tension ridge
What is the characteristic feature of Bruxism?
Increase in tonic activity in jaw muscles
What factors can increase muscle tone and lead to non-functional clenching?
Psychic tension and occlusal discrepancies
Which condition is also known as perverted swallow or tongue thrust syndrome?
Abnormal swallow
What happens to the tip of the tongue in tongue thrust syndrome during swallowing?
Placed against or between the teeth
What prevents masseter muscle activity in individuals with abnormal swallowing?
Tongue placed between the teeth
Which of the following describes gum pads in a neonate's mouth?
Segmented oral mucous membrane developing tooth sites
What is a common consequence of increased muscle tone according to the text?
Non-functional clenching
During which stage are teeth of both deciduous and permanent dentition seen?
Mixed dentition stage
What is the significance of the first permanent molars in occlusion?
They play an important role in establishing and functioning of occlusion in permanent dentition
In what kind of relationship does the permanent first molar initially erupt when deciduous second molars are in a flush terminal plane?
Class I molar relation
What happens when deciduous second molars are in a distal step during the mixed dentition stage?
The permanent first molar erupts into a class II relation
What influences the anteroposterior positioning of permanent molars?
Terminal plane relationship
At what age do first permanent molars typically erupt?
6 years old
What is the effect of impingement from the roots shifting incisally with eruption of canines?
Driving the incisor crowns medially
What is the total sum of the mesio-distal width difference between primary and permanent incisors in the maxilla?
7.6mm
What activities occur simultaneously during the eruption of succedanaeous teeth?
Root lengthening, bone height increase, tooth movement through bone
What happens to the permanent tooth if a primary tooth is extracted before permanent eruptive movements start?
The permanent tooth is delayed in eruption
What is the obligate space requirement for incisors to erupt in normal alignment?
$7.6mm$ in maxilla and $6mm$ in mandible
Which factor contributes to the closure of diastema during incisor eruption?
$7.6mm$ width increase in maxillary permanent incisors
Test your knowledge on the continuous band of muscles that encircle the dentition known as the buccinator mechanism. Explore its structure and function, including its insertion points and effects on orofacial movements.
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