medical MCQs – Page 267

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

5321. Position and movement of articular disc of TMJ is controlled by fibers of_____________?
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A. Sphenomandibular ligament

B. Lower head of lateral pterygoid muscle

C. Upper head of lateral pterygoid muscle

D. Superficial head of medial pterygoid muscle

5322. The curvature of the cervical line of most teeth will be approximately____________?
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A. 1 mm less distally than mesially

B. 2 mm less distally than mesially

C. 1 mm less lingually than buccally

D. 2 mm less lingually than buccally

5323. Generally , contact areas between posterior teeth are located in which directions from the centr of the proximal surface ____________?
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A. Lingually and gingivally

B. Lingually and occlusally

C. Facially and occlusally

D. Facially and gingivally

5324. In which of the tooth is the mesiodistal measurements is greater lingually than facially________________?
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A. Mandibular 2ndpremolar

B. Maxillary 1st molar

C. Mandibular 1st premolar

D. Maxillary 1stpremolar

5325. Dentin islands are frequently found in the root canals of which of the following permanent teeth ?
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A. Maxillary 2nd premolar & maxillary 1st molar

B. Maxillary 2nd premolar & mandibular canine

C. Maxillary lateral incisor & mandibular canine

D. Maxillary 1st molar & mandibular 2nd premolar

5326. The shortest root on a maxillary first molar is_____________?
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A. Lingual

B. All are of equal length

C. Disto buccal

D. Mesio- buccal

5327. Which is the predominant factor in the formation of the alveolar process_____________?
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A. Eruption of teeth

B. Overall growth of the bodies of the maxilla and the mandible

C. Normal process of growth

D. Lengthening of the condyle

5328. Rounded protuberances on the incisal edges of newly erupted permanent incisors are____________?
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A. Tubercles

B. Mamelons

C. Cingulum

D. Enamel pits

5329. Which of the following has a nonfunctional cusp ?
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A. Mandibular canine

B. Maxillary second premolar

C. Mandibular first premolar

D. None of the above

5330. Which line angle area is most acute when a permanent maxillary second molar is viewed occlusally ?
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A. Distofacial

B. Distolingual

C. Mesiolingual

D. Mesiofacial
5331. The geometric outline of the buccal surface of posterior teeth are_______________?
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A. Square

B. Quadrilateral

C. Trapezoidal

D. Rhomboidal

5332. In comparison to maxillary central incisor , Maxillary canine has a height of contour that is______________?
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A. Same

B. Less

C. More

D. Different on different teeth

5333. On opening the mouth , if the jaw deviates to the right side, it indicates the paralysis of__________?
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A. Left medial pterygoid

B. Right lateral pterygoid

C. Right medial pterygoid

D. Left lateral pterygoid

5334. The number of point angles in a permanent mandibular first molar is_____________?
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A. 8

B. 10

C. 6

D. 4
5335. Mesial concavity making the prognosis poor for a furcation involvement is present in_____________?
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A. Maxillary 2nd premolar

B. Maxillary 1st premolar

C. Mandibular 1st premolar

D. Maxillary canine

5336. Mesial contact area of the permanent canine is at the______________?
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A. None of the above

B. Junction of the middle and cedrvical thirds

C. Junction of the incisal and middle thirds

D. Middle third

5337. In maxillary 1st permanent molar, the 2 obtuse angles are________________?
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A. Mesiolingual and mesiofacial

B. Distofacial and mesiofacial

C. Mesiofacial and distolingual

D. Distofacial and mesiolingual
5338. The permanent anterior tooth, which is most 20. Commonly atypical , is_____________?
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A. Maxillary central incisor

B. Mandibular 1st premolar

C. Mandibular central incisor

D. Maxillary lateral incisor
5339. All embrasure spaces are reflection of the______________?
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A. Form of the teeth involved

B. None of the above

C. Size of the teeth involved

D. Eruption sequence involved

5340. The maxillary tooth exhibiting the greatest variation in root alignment is______________?
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A. Third molar

B. First premolar

C. Second molar

D. Central incisor