oral pathology and medicine MCQs – Page 20

Practise focused oral pathology and medicine questions with marked answers for exam preparation and subject revision.

oral pathology and medicine Mcqs
381. The primary causative factor for myofacial pain dysfunction syndrome of the TMJ is_______________?
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A. Infratemporal space infection

B. Otitis media

C. Auriculotemporal neuritis

D. Muscular overextension and over contraction
382. Streptococcus mutans is considered to be principle etiologic agent of caries because it produces organic acids and it ________________?
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A. Forms a gelatinous matrix

B. Derives energy from enamel constituents

C. Lives symbiolically with lactobacillus

D. Metabolizes substrate from saliva

383. Eruption fails in this bone disease, as there is no bone resorption_______________?
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A. Phantom bone disease

B. Pagets disease

C. Primary hyperparathyroidism

D. Osteopetrosis
384. Oral foci of millers are seen in_______________?
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A. Syphilis

B. Lichen planus

C. Herpes simplex

D. Dental caries
385. Naso Labial cyst is thought to arise from_______________?
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A. Remnants of cell rests of embryonic lacrimalduct

B. Maxillary sinus lining epithelium

C. Remnants of cell rests of serrae

D. Remnants of cell rests of mallasez

386. Most common missing tooth in the permanent dentition is_____________?
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A. Maxillary first molar

B. Mandibular first molar

C. Maxillary canine

D. Mandibular second premolar
387. Which one of the following is the cause of dilacerations ?
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A. Abnormal displacement of ameloblasts during tooth formation

B. Abnormal proliferation of enamel epithelium during tooth development

C. Trauma to the tooth germ during root development

D. Abnormal displacement of tooth germ during root development

388. Which of the following is most common development cyst________________?
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A. Nasopalatine cyst

B. Median palatal cyst

C. Naso-alveolar cyst

D. Globulomaxillary cyst

389. Which of the following is a reactive lesion of the gingiva that may demonstrate bone radiographically and often even microscopically_____________?
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A. Peripheral ossifying fibroma

B. Traumatic neuroma

C. Irritation fibroma

D. Osteoma

390. S. mutans is involved in dental caries initiation Other bacteria also involved is______________?
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A. S. sanguis

B. S. Sarcinus

C. S. macae

D. S. salivarius

391. Microdontia is most commonly seen affecting_______________?
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A. Mand. Central incisor

B. Max. lateral incisor

C. Mand. first premolar

D. Mand. Second premolar

392. Turners tooth is seen in_____________?
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A. enamel hypoplasia due to congenital syphilis

B. enamel hypoplasia due to birth injuries

C. enamel hypoplasia due to hypocalcemia

D. enamel hypoplasia due to local infection or local trauma
393. Based on the degree to which apical displacement of the pulpal floor is seen, Cynodont is the name given to_____________?
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A. Mesotaurodont

B. Hypertaurodont

C. Hypotaurodont

D. Normal tooth
394. Which of the following is benign in nature_______________?
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A. lymphangioma

B. Leukemia

C. Melanoma

D. Lymphoma

395. In Cleidorcranial dysostosis, sometimes the roots of the permanent teeth are_____________?
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A. Fused

B. Thin and long

C. Thick and short

D. thin and short
396. Best results are obtained in oral submucous fibrosis is by______________?
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A. Intralesional placental extract

B. Intralesional cortisone therapy. with hyaluronic acid

C. Vitamin E and oral cortisone

D. Oral cortisone with intralesional therapy (cortisone)

397. Onion Skin appearance of radiographs is seen in______________?
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A. osteosarcoma

B. fibrous dysplasia

C. Ewings sarcoma

D. Chondrosarcoma

398. The most common bone tumor that occurs in children is_____________?
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A. Multiple myeloma

B. Ewings sarcoma

C. Osteosarcoma

D. Metastatic carcinoma

399. Odontodysplasia is most common in_________________?
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A. Mandibular premolar

B. Maxillary central incisor

C. Mandibular canine

D. Mandibular third molar

400. Most commonly submerged tooth is_______________?
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A. Mand. Primary 1st moral

B. Mand. Primary 2nd moral

C. Maxi. Primary 1st moral

D. Maxi. Primary 2nd moral