402. Which of the following is unlikely to cause enamel hypoplasia ?
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A. Fluoride

B. Cleidocranial dysostosis

C. Congenital syphilis

D. Rickets

403. Thistle-tube appearance of pulp chamber is a feature of______________?
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A. Dentinogenesis imperfecta

B. Amelogenesis imperfecta

C. Cornal dentin dysplasia

D. Regional odontodysplasia

405. Initiation of caries by streptococcus mutans is by the production of______________?
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A. Dextranase and soluble dextran

B. None of the above

C. soluble dextan and glucosyl transferase

D. Insoluble dextan and glucosyl transferase
406. Which of the following statement is false in relation to myofacial pain dysfunction syndrome ?
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A. is caused by muscle fatigue due to chronic oral habits are grinding and clenching

B. The perioral musculature becomes hypotonic

C. Maily affects young females

D. Treatment involves construction of occlusal guard and stress free emotional condition

407. Bohns nodules are______________?
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A. Warts on the tongue

B. Cysts of gingiva in growing children

C. Cysts associated with soft palate

D. Cystic swellings in neonates
408. Amelogenesis imperfecta is a disorder of_____________?
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A. Mesoderm

B. Endoderm

C. Ectoderm

D. Ecto and Mesoderm

409. Hypodontia is mainly found in all except___________?
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A. Ectodermal dysplasia

B. Cleidocranialdysostosis

C. Osteopetrosis

D. Papillion levefre syndrome

410. Tumor represented T2 N2 M0 is classified as_______________?
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A. Stage III

B. Stage I

C. Stage II

D. Stage IV
411. Fordyce granules mostly occurs in all of the following area EXCEPT________________?
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A. Posterior tonsillar pillar

B. Vermilion of the lip

C. Alveolar ridge

D. Palate

412. Of the following which is most common disorder causing pain about the masticatory apparatus including the TMJ_____________?
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A. Myofacial pain dysfunction syndrome

B. Degenerative arthritis

C. Traumatic arthritis

D. Trigeminal neuralgia

413. All are true about supernumerary tooth except_______________?
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A. Disto molars doesnt resemble any other tooth

B. Mesiodens is the most common supernumerary tooth

C. More common in mandible

D. May have resemblance to normal teeth

414. Ground glass appearance in bone is seen in_____________?
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A. Condensing osteitis

B. Hyper parathyroidism

C. Osteopetrosis

D. Fibrous dysplasia

415. Estein Pearls are________________?
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A. Gingival cyst of newborn

B. Gingival cyst of adult

C. Enamel pearls

D. Epithelial rests

416. Burning Mouth Syndrome describes pain associated with_____________?
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A. No detectable oral disease

B. Aphthous stomatitis

C. Oral submucous fibrosis

D. Oral lichen planus

417. Submerged teeth are________________?
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A. Intruded teeth

B. Impacted teeth

C. Unerupted teeth

D. Ankylosed teeth
418. Geographical tongue, all are true except______________?
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A. Lesions may be Bilaterally symmetrical on tongue

B. Is a precancerous condition

C. No treatment is required

D. May be related to emotional stress

419. Complication of Rheumatoid arthritis of condyle is______________?
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A. Fibrous ankylosis

B. Subluxation

C. None of the above

D. Dislocation

420. What is non characteristic of Eagles syndrome_______________?
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A. pain during mandibular movement

B. Excessive lacrimation

C. Stabbing type pain orginate in the tonsillar regions

D. When the jaws are closed the pain subsided

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

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

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

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

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