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.Management Sciences
Category: Dento – Osseous Structures and and TMJ
The zygomatic bone does not articulate with________________?
A. Frontal bone
B. Maxillary bone
C. Nasal bone
D. Temporal bone
Articular disc of TMJ is__________?
A. Thickest posteriorly
B. Narrow in the centre
C. Strengthened by lateral pterygoid
D. All of the above
Depression of mandible is achieved by_______________?
A. Digastric
B. Lateral pterygoid
C. Geniohyoid
D. All of the above
Temporo – mandibular ligament is attached to _____________?
A. Lateral aspect of TMJ
B. Posterior aspect of TMJ
C. Mandibular condyle
D. Coronioid process
Lateral movement of condyle is caused by_____________?
A. Contralateral lateral pterygoid muscle
B. Both lateral and medial pterygoid muscle
C. Epsilateral lateal pterygoid muscle
D. Bilateral contraction of lateral pterygoid muscle
In which of the following areas is the alveolar process the thinnest_____________?
A. Lingual to the maxillary central incisors
B. Buccal to the mandibular central incisors
C. Lingual to the maxillary canines
D. Lingual to the mandibular first molar
Basically TMJ is a_____________?
A. Ball and socket joint
B. Hinge and axis joint
C. Synovial joint
D. Diartmodal joint
Retrusion of mandible is achieved by _______________?
A. Lateral pterygoid
B. Temporalis
C. Masseter
D. None of the above
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
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