Which part of the temporomandibular joint disc is the thinnest and has no blood vessels and nerves?()
A. the anterior band
B. the intermediate zone
C. the posterior band
D. the bilaminar zone
E. all of the above
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Which of the following provides the driving force for the mastication?()
A. the teeth
B. the mandibular movement
C. the masticatory muscles
D. TMJ (temporal-mandibular joint)
E. none of the above
Which of the following is not one of the factors influencing the mastication efficiency? ()
A. the diseases of the temporal mandibular joint
B. the defects of the intraoral soft and hard tissues
C. the supporting tissues of the teeth
D. the functional contact area of the teeth
E. the axial convexity of the dental crown
The biting force refers to ()
A. the maximal force that the masticatory muscles can exert
B. the actual pressure on the tooth during mastication
C. the actual force produced by the masticatory muscles during mastication
D. the maximal force that the periodontium can sustain
E. the minimal force to grind the food
Which of the following does not affect gustation?() A, the sense of smell
A. the age
B. the conditions of the tongue and oral cavity
C. the endocrine
D. the gender
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