The articular disk of TMJ is surrounded by the articular capsule and divides the joint cavity into superior and inferior cavities. The feature is that ()
A. The articular disk is directly attached to the condyle.
B. The superior cavity is big and loose, and is called the sliding joint.
C. The superior and inferior cavities are interconnected.
D. The superior cavity is small and tight, and is called the hinge joint.
E. None of the above is true.
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Where does attrition often occur? ()
A. The labial surface and occlusal surface
B. The incisal edge and occlusal surface
C. The incisal edge and the cervical section
D. The incisal ridge, the occlusal surface, and the proximal surfaces
E. None of the above.
Angle's classification of malocclusion is based on ()
A. The occlusal relationship between maxillary and mandibular molars
B. The occlusal relationship between maxillary and mandibular canines
C. The occlusal relationship between maxillary and mandibular first premolars
D. The centric position
E. The occlusal relationship between maxillary and mandibular first molars
The muscle attached to the internal oblique line of the mandible is ()
A. the digastric
B. the mylohyoid
C. the geniohyoid
D. the genioglossus
E. the hyoglossus
The gustatory senses does NOT include ()
A. sour taste
B. sweet taste
C. bitter taste
D. spicy taste
E. salty taste
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