Dento – Osseous Structures and and TMJ

Which of the following muscle helps in depressing the mandible ___________? A. Temporalis B. MassetorC. Lateral pterygoid D. Medial pterygoid

All of the following muscles are elevators of the mandible except______________? A. Digastric B. Massetor C. Medial pterygoid D. Temporalis

In which of the following areas is the alveolar process the thinnest_____________? A. Lingual to the maxillary central incisorsB. Buccal to the mandibular central incisors C. Lingual to the maxillary canines D. Lingual to the…

Which muscle is responsible for translation of condyle ? A. Medial pterygoid B. Masseter C. Superior constrictor of pharynxD. Lateral pterygoid

Forward moment of mandible is done by_________? A. Lateral pterygoid B. Medial pterygoid C. Temporalis – anterior fibers D. Temporalis- posterior fibers

Which of the portions of the intra articular disc is the thinnest ? A. AnteriorB. Intermediate C. Posterior D. retrodiscal

Temporo – mandibular ligament is attached to _____________? A. Lateral aspect of TMJ B. Posterior aspect of TMJ C. Mandibular condyle D. Coronioid process

Which is the predominant factor in the formation of the alveolar process_____________? A. Eruption of teeth B. Normal process of growth C. Lengthening of the condyle D. Overall growth of the bodies of the maxilla and the mandible…

Lateral movement of condyle is caused by_____________? A. Contralateral lateral pterygoid muscleB. Both lateral and medial pterygoid muscle C. Epsilateral lateal pterygoid muscle D. Bilateral contraction of lateral pterygoid muscle…

Depression of mandible is achieved by_______________? A. Digastric B. Lateral pterygoid C. GeniohyoidD. All of the above