6151. Xeroderma pigmentosum is characterized by:___________?
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A. Acanthosis of epithelium with elongation of rete ridges

B. Autosomal dominant inheritance

C. Irregular accemulation of melanin in the basal cell layer

D. Inability to repair sunlight induced damage to DNA
6152. In Xerostomia the salivary pH is_______________?
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A. High

B. Unaffected

C. Increased in morning & decrease in day

D. Low
6153. Leisegang rings are found in:___________?
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A. Primordial cyst

B. Calcifying epithelial odontogenic cyst

C. Odontoma

D. Calcifying epithelial odontogenic tumor
6155. The primary cause of acantholysis in pemphigus vulgaris is___________?
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A. chronic alcoholism

B. Intercellular oedema

C. intra epithelial oedema

D. auto immunity
6157. Sialoliths are stones found in the salivary duct and gland and are primarily composed of_____________?
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A. Unknown compounds of phosphats

B. Potassium cloride

C. Hydroxyapatitie

D. Calcium chloride

6158. Histological clefts in lichen planus are____________?
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A. Wickhams Striae

B. Max Joseph spaces

C. Auspitzs sign

D. Civatte bodies

6159. Erythema multiformae is:___________?
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A. painless vesicular self limiting disease

B. A viral disease

C. Bacterial infection

D. An acute self limiting disease, of skin and oral mucous membrane
6161. The chronic osteomyelitis of the jaw consists of:_____________?
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A. Sclerotic cemental mass

B. chronic diffuse sclerosing osteomyelitis

C. All of the above

D. condensing osteitis

6162. All of the following lesions may be classified as Odontogenic Tumours EXCEPT:
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A. Acanthomatous ameloblastoma

B. Simple ameloblastoma

C. Branchial cleft cyst

D. Myxoma

6163. Salivary duct calculi______________?
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A. produce pain on eating

B. Are common cause of acute parotitis

C. Are commonest in the parotid ducts

D. Are associated with hypercaleaemic states

6164. Freys syndrome results from surgery of the ______________?
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A. TMJ

B. Parotid gland

C. sublingual salivary gland

D. Submandibular salivary gland

6165. Pemphigus is characterized by:____________?
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A. Acantholysis

B. Hyperorthokeratosis

C. Hyperparakeratosis

D. Acanthosis

6166. Trigeminal heuralgia (tic doulourex) is characterized by______________?
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A. Uncontrollable twitching of muscles

B. Paralysis of one side of the face

C. Prolonged episodes of plain on one side of the face

D. Sharp, excruciating pain of short duration
6167. Which of the following is a true neoplasm of functional cementoblasts:
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A. Periapical cemental dysplasia

B. Familial cemental dysplasia

C. Hypercementosis

D. Benign cementoblastoma
6168. joint erosions are not a feature of:____________?
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A. Multicentric reticulohisticytosis

B. Systemis lupus eythematosus

C. Rhematoid arthritis

D. Psoriasis

6169. Most used selective medium for streptococcus mutans is:____________?
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A. Mitus salivarius bacitracin agar

B. Mac conkey medium

C. Tellurite medium

D. Nutrient agar

6170. Bells palsy is triggered by_______________?
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A. Any of the above

B. Exposure to cold

C. Local and systemic infection

D. Tooth extraction

6171. Which sites are characteristically affected in Stevens-Johnson syndrome?
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A. Liver, spleen, pancreas

B. Conjunctive, genitalia, oral mucosa

C. Parotid gland, palate, conjunctive

D. Oral mucosa, lacrimal apparatus, ears

6172. Osteomyelitis begins as an inflammation of:__________?
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A. Medullary bone

B. Cortical bone

C. periosteum and inner cortex

D. Periosteum

6173. Grinspan syndrome is associated with:___________?
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A. Leukoplakia

B. Oral submucous fibrosis

C. Aphthous ulcer

D. Lichen planus
6175. Which of the following is false about ossifying fibroma ?
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A. Affects people in 3-4 decade of life

B. Circumscribed radio opacity

C. Continuous growth

D. Maxilla affected more than the mandible
6176. Histochemical demonstration of glycogen in the cells can help in the diagnosis of_________________?
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A. Malignant melanoma

B. Squamous cell carcinoma

C. Kaposis sarcoma

D. Ewings sarcoma
6177. Osteogenesis imperfecta_____________?
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A. Has associations with amelogenesis imperfecta

B. May be associated with deafness

C. In a se*-linked disorder of bones that develop that develop in cartilage

D. manifests with blue sclera which are pathognomonic of this diease
6178. Which of the following conditions is characterized by abnormally large pulp chambers ?
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A. Dentinal dysplasia type I

B. Amelogenesis imperfecta

C. Dentinogenesis imperfecta

D. Regional odontodysplasia
6179. Geographical tongue, all are true except______________?
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A. May be related to emotional stress

B. Lesions may be Bilaterally symmetrical on tongue

C. No treatment is required

D. Is a precancerous condition
6180. Bacteria responsible for initiation of caries is _________________?
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A. Actinomyces

B. Strep. viridans

C. Lactobacillus

D. Strep. mutans
6181. Mutation in GNAS 1 gene is associated with________________?
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A. Focal cementoosseous dysplasia

B. Fibrous dysplasia

C. Periapical cementoosseous dysplasia

D. Ossifying fibroma

6182. Tumour that doesnt show spontaneous regression______________?
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A. Neuroblastoma

B. Malignant melanoma

C. Octeosarcoma

D. Retinoblastoma

6183. Fusion of teeth is more common in_______________?
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A. Permanent dentition

B. Mixed dentition

C. Primary dentition

D. None of the above

6184. Downs syndrome is associated with all except__________________?
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A. Delayed eruption of deciduous teeth

B. Premature loss off deciduous teeth

C. Retrognathia

D. Periodontal disease

6185. Pierre Robin syndrome is associated with______________?
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A. Tetrology of fallot

B. Syndactally

C. Micrognathia

D. Cleft of the lip and plate

6186. Complication of Rheumatoid arthritis of condyle is______________?
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A. Subluxation

B. None of the above

C. Fibrous ankylosis

D. Dislocation

6188. Taurodontism is characterized by_____________?
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A. Obliterated pulp chambers with secondary dentine deposition

B. Hypercementosis

C. Rootless teeth with thin shell of enamel

D. Elongated wide pulp canals and short roots
6189. 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. Polyostotic fibrous dysplasia

C. Pagets disease of the bone

D. Osteopetrosis

6191. Turners hypoplasia most commonly affects________________?
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A. Permanent maxillary anteriors

B. Deciduous mandibular anteriors

C. Deciduous maxillary anteriors

D. Permanent manibular anteriors

6192. Which of the following dentitions shows the highest frequency of ocurrence of supernumerary teeth ?
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A. Mandibular deciduous dentition

B. Mandibular permanent dentition

C. Maxillary deciduous dentition

D. Maxillary permanent dentition
6193. The treatment for a child with cherubism is______________?
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A. Enbloc dissection

B. surgical excision

C. radiation

D. cosmetic surgery after puberty
6194. In which one of the following perineural invasion in head and neck cancer is most commonly seen ?
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A. Adenocarcinoma

B. Adenoid cystic carcinoma

C. Squamous cell carcinoma

D. Basal cell adenoma

6195. Presence of Epstein Barr virus in hairy leukoplakia can be demonstrated using following methods EXCEPT_____________?
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A. Polymerase chain reaction

B. Tzanck smear

C. In situ hybridization

D. Electron microscopy

6196. All of the following malignancies metastasize except____________?
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A. Adenocarcinoma

B. Melanoma

C. Squamous cell carcinoma

D. Basal cell carcinoma
6198. Organism involved in smooth surface caries is____________?
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A. ampylobacter

B. treptococcus mutans

C. ctinomyces viscosus

D. actobacillus

6199. Immature bony trabeculae are found in_____________?
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A. Fibrous dysplasia

B. Rickets

C. Cleidocranial Dysplasia

D. Pagets disease