medical MCQs – Page 23

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 Review each marked answer and report any item that may be outdated or unclear.

medical Mcqs

1. oral anatomy 2. microbiology 3. oral pathology and medicine 4. physiology 5. biochemistry 6. general anatomy 7. dental materials 8. pharmacology 9. pathology 10. oral histology

441. A dens in dente is usually caused by_______________?
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A. A supernumerary tooth bud enclaved within a normal tooth

B. A deep invagination of the enamel organ during formation

C. An abnormal proliferation of pulp tissue

D. Denticle formation within the pulp tissue

442. Neoplastic transformation in leucoplakia is seen most commonly in _____________?
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A. Palate

B. Floor of mouth

C. Buccal mucosa

D. Lateral border of tongue

443. Hairy tongue is characterized by____________?
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A. Hypertrophy of circumvallate papillae

B. Hypertrophy of foliate papillae

C. Hypertrophy of filiform papillae

D. Hypertrophy of fungiform papillae

444. Alkaline phosphatase increases in_____________?
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A. Osteopetrosis

B. Cherubism

C. A and D

D. Fibrous dysplasia

E. Pagets disease

445. Biochemical abnormality associated with osteogenesis imperfecta is increase in______________?
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A. Acid phosphatase

B. Bicarbonate ion

C. Alkaline phosphatase

D. Phosphorylase enzyme

446. A 6 year old patient with extra cusp on maxillary central incisor is associated with all except______________?
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A. Rubinstein Taybi Syndrome

B. Proteus Syndrome

C. Mohrs syndrome

D. Sturge-Weber Syndrome

447. An attack of cluster headache can be aborted by _____________?
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A. Aspirin administration

B. Morphine administration

C. Sublingual nitroglycerine administration

D. Breathing oxygen

448. Taurodontism is usually seen in_________________?
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A. Maxillary premolars

B. Mandibular first molar

C. Incisor with talon/cusp

D. Mesiodens

449. Hypoplastic defects in permanent central and lateral incisors are likely to result due to severe illness or other factors during_______________?
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A. Two or three years of life

B. First month of life

C. First two years of life

D. First nine month of life

450. Dentinogensis imperfecta differs from amelogenesis imperfecta in that, the former is_____________?
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A. The result of excessive fluoride ingestion

B. A hereditary disturbance

C. Characterized by calcification of pulp chambers and the root canals of the teeth

D. The result of faulty enamel matrix formation

451. Mutation in GNAS 1 gene is associated with________________?
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A. Fibrous dysplasia

B. Ossifying fibroma

C. Focal cementoosseous dysplasia

D. Periapical cementoosseous dysplasia

452. A 4 year old child with one tooth less than the normal dentition shows large tooth with two crowns and two root canals, the anamoly is______________?
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A. Concrescence

B. Gemination

C. Dilaceration

D. Fusion

453. Marked reduction in amount of dentin, widening of predentin layer, presence of large area of interglobular dentin and irregular pattern of dentin is seen in______________?
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A. Dentin dysplasia

B. Odonto dysplasia

C. Dentinogenesis imperfecta

D. Hypocalcified dentin

454. Which of the following is not hereditary________________?
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A. Cleidocranial dysostosis

B. Dentinogenesis imperfecta

C. Regional odontodysplasia

D. Amelogenesis imperfecta

455. Bifid tongue a congenital anomaly occurs due to non-fusion of____________?
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A. The two lateral lingual swellings

B. Tuberculum impar and lateral lingual swellings

C. Some of the above

D. Hypobranhiral eminence and tuberculum impar

456. Clinical evidence of dentinogenesis imperfecta is______________?
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A. Defective dentine and obliterated pulp chamber

B. Increased rate of caries

C. Oligodontia

D. Defective enamel and dentine

457. The histopathology of osteopetrosis shows_______________?
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A. Presence of numerous osteoclasts and a few osteoblasts

B. Periosteal bone formation and lack of normal bone resorption

C. Persence of extra collagen fibres and less calcification resulting in resistance of bones to fracture

D. Endosteal bone formation and lack of normal bone resorption

458. Fothergills disease is one of the synonyms of_______________?
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A. Multiple sclerosis

B. Sarcoidosis

C. Trigeminal neuralgia

D. Lupus erythematosis

459. A patient aged 50 years presented with a history of jaw expansion and enlargement of maxilla_____________?
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A. Fibrous dysplasia

B. Acromegaly

C. Hyperparathyroidism

D. pagets disease

460. In a caries-free individual the saliva has_____________?
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A. Medium buffering capacity for acids

B. Independent of buffering capacity for acids

C. low buffering capacity of acids

D. High buffering capacity for acids

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