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.Management Sciences
Category: Dento – Osseous Structures and and TMJ
Which of the following muscles moves the condyle and articular disc anterior and downwards on glenoid fossa______________?
A. Lateral pterygoid
B. Medial pterygoid
C. Temporalies- anterior fibers
D. Temporalis – posterior fibers
Which of the following movement (s) is / are involved in the opening of the mouth?
A. Only hinge ( rotation )
B. Only translation
C. Hinge followed by translation
D. Translation followed by hinge
Forward moment of mandible is done by_________?
A. Lateral pterygoid
B. Medial pterygoid
C. Temporalis – anterior fibers
D. Temporalis- posterior fibers
On opening the mouth , if the jaw deviates to the right side, it indicates the paralysis of__________?
A. Right lateral pterygoid
B. Left lateral pterygoid
C. Right medial pterygoid
D. Left medial pterygoid
Which of the following moment are performed by a non- working condyle ?
A. Straightward
B. Down wards forwards and lateral
C. Down wards forwards and medial
D. Down wards Back wards and medial
Articular disc of tmj receives insertion from which muscle______________?
A. Medial pterygoid
B. Lateral pterygoid
C. Massetor
D. Temporalis
Which of the following is not a structural element of the temporomandibular joint ?
A. Sigmoid notch
B. Articular disc
C. Capsular ligament
D. Joint cavities
Thinnest labial plate is found in the region of____________?
A. Upper central incisors
B. Lower central incisors
C. Upper canines
D. Lower canines
The premolar alveoli are what shape in cross section_____________?
A. Rectangular
B. Triangular
C. Kidney shaped
D. Oval
Which muscle is responsible for translation of condyle ?
A. Medial pterygoid
B. Masseter
C. Superior constrictor of pharynx
D. Lateral pterygoid
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