medical MCQs – Page 22

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 Review each marked answer and report any item that may be outdated or unclear.

421. Taurodontism is seen in ________________?
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A. Down syndrome

B. Turner syndrome

C. Sturge weber syndrome

D. Klinefelters syndrome
422. Complete obliteration of pulp is seen in all except_______________?
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A. Type I dentinogenesis imperfecta

B. Type III dentinogenesis imperfecta

C. Dentin dysplasia

D. Type II dentinogenesis imperfecta
423. Which of the following factors in the stephans curve is related to the caries incidence and sugar intake______________?
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A. Frequency of sugar intake

B. Quantity of sugar intake

C. Physical form of sugar

D. Ph of Plaque
424. Bacteria responsible for initiation of caries is _________________?
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A. Actinomyces

B. Strep. viridans

C. Lactobacillus

D. Strep. mutans
425. In Hypodontia, the most commonly affected tooth is_______________?
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A. Permanent third molar

B. Permanent Canine

C. Permanent lateral incisor

D. Permanent second premolar

426. Oral foci of millers are seen in_______________?
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A. Herpes simplex

B. Syphilis

C. Dental caries

D. Lichen planus

427. Delayed eruption of teeth occurs in_________________?
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A. Cleidocranial dysostosis

B. Hyperthyroidism

C. Osteitis deformans

D. Craniofacial dysostosis

428. Eruption fails in this bone disease, as there is no bone resorption_______________?
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A. Primary hyperparathyroidism

B. Phantom bone disease

C. Pagets disease

D. Osteopetrosis
429. Osteosclerosis of bone occurs due to______________?
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A. Increase in the virulence of organisms causes infection

B. Decreased host resistance

C. Increased host response

D. Occurs in immunocompromised patients

430. The number of dentinal zones in dentinal caries is_____________?
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A. Four

B. Five

C. Two

D. One

431. Mulberry molars are characteristic features of_____________?
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A. congenital syphilis

B. Due to chronic suppurative abscess in over lying gingival tissue

C. Severe flurosis

D. Trauma at the time of birth

432. Gemination of teeth occur due to______________?
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A. Division of a single tooth bud before calcification

B. Division of a single tooth bud after calcification

C. Fusion of two teeth after calcification

D. Fusion of two teeth before calcification

433. Prolonged administrator of broad spectrum antibiotics results in the formation of_______________?
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A. Black hairy tongue

B. Geographic tongue

C. Median rhomboid glossitis

D. Fissured tongue

434. Which of the following teeth is most likely to be congenitally missing ?
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A. Mand. second premolar

B. Maxillary first premolar

C. Mandibular canine

D. Maxi. central incisor

435. Animals maintained in germ free environmental did not develop caries even when fed on a high carbohydrate diet is given by_____________?
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A. Gottlieb

B. Synder

C. Orland and Fizgerald

D. Miller

436. Mottled enamel is due to______________?
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A. Excess of fluoride

B. Vitamin D deficiency

C. Vitamin A deficiency

D. Teratogens

437. Cysts associated with vital teeth are_______________?
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A. Dentigerous cyst OKC, radicular cyst

B. Dentigerous cyst, Globulomaxillary cyst, lateral periodontal cyst, OKC

C. B & C

D. Dentigerous cyst, Globulomaxillary cyst, radicular cyst

438. A developmental abnormality characterized by the presence of fewer than the usual number of teeth is_____________?
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A. Microdontia

B. Dens is dente

C. Anodontia

D. Oligodontia
439. Lesion of facial nerve at level of stylomastoid foramen leads to____________?
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A. Loss of innervation to stapedius

B. Loss of lacrimal secretion

C. Paralysis of orbicularis oculi muscle

D. Loss of taste sensation from Ant. 2/3 of tongue

440. Which of the following diseases of the bone characteristically exhibits (in contrast to the other three conditions) a single lesion in a single bone ?
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A. Central giant cell granuloma

B. Osteopetrosis

C. Polyostotic fibrous dysplasia

D. Pagets disease of the bone