/254 19 Dental Pathology Preparation (Pr. Tuy Tel) 1 / 254 1) A permanent tooth with local hypoplastic deformity in crown is called:? a. Turner’s tooth b. Ghost teeth c. Enameloma d. Taurodontism 2 / 254 2) ANUG is now believed to be caused by a fusiform bacteria and? a. Actinomyces naeslundii b. Treponema pallidum c. Borrelia vincentii d. Actinomyces israelii 3 / 254 3) Chronic apical periodontitis is another name of? a. Periapical abscess b. Periapical granuloma c. Periapical cyst d. Phoenix abscess 4 / 254 4) Submental space extends from the anterior border of submandibular space to? a. Sublingual space b. Midline c. Symphysis menti d. Mandibular incisors 5 / 254 5) If a periapical abscess drains intraorally through a sinus tract after perforating the buccal cortical plate and surface epithelium it forms a mass of granulation tissue known as? a. Phoenix abscess b. Lateral radicular cyst c. Parulis d. Residual cyst 6 / 254 6) Histological features of thin epithelial lining, ameloblast-like basal cell layer with overlying layers resembling stellate reticulum and abundant ghost cell within the epithelial lining are suggestive of? a. Odontogenic keratocyst b. Radicular cyst c. Calcifying odontogenic cyst d. Dentigerous cyst 7 / 254 7) All of the following except _______ are common radiological features associated with a periapical granuloma.? a. Thickening of PDL around root apex b. Well-defined radiolucency with sclerotic borders c. Root resorption of involved tooth d. Well-defined radiopacity 8 / 254 8) Acquired pellicle is primarily composed of? a. Heparan sulfate b. Glycosaminoglycans c. Collagen d. Glycoproteins 9 / 254 9) The phenomenon by which bacteria circulating in blood accumulate at the site of pulpal inflammation is called as? a. Retrograde pulpitis b. Anachoretic pulpitis c. Chemotaxis d. Aerodontalgia 10 / 254 10) The most prominent feature of acute apical periodontitis is? a. Extra oral swelling b. None of the above c. Tenderness of tooth to pressure d. Intermittent pain 11 / 254 11) Which is considered to be one of the most important predisposing factors in the causation of ANUG? a. Decreased resistance to infections b. Hormonal changes c. Malnutrition d. Allergy to drugs 12 / 254 12) A patient has spontaneous pain and intense sensitivity to cold with lingering pain. The most likely diagnosis is? a. chronic irreversible pulpitis b. acute periradicular periodontitis c. chronic periradicular periodontitis d. acute irreversible pulpitis 13 / 254 13) What is the most frequent cause of acute osteomyelitis of jaw? a. Trauma b. Paget disease c. Dental infection d. Malnutrition 14 / 254 14) Which cells, secreting osteoclast activating factor are believed to be responsible for much of root and bone destruction in periapical granulomas? a. Mast cells b. Macrophages c. T lymphocytes d. B lymphocytes 15 / 254 15) As far as localised alveolar osteitis is concerned; which one of the following is true? a. Excessive fibrinolysis is the likely aetiology b. The prophylactic prescription of antibiotics prior to extraction reduces the incidence. c. Zinc oxide eugenol and alvogyl dressing promote a rapid bone growth d. Purulent exudate must be seen for a diagnosis and irrigation ismandatory e. The incidence in the mandible and maxilla is similar 16 / 254 16) Fordyce’s spots are:? a. All of the above b. Present on the cheek mucosa lateral to the angle of the mouth c. Fat tissue embedded in buccal mucosa d. Red spots 17 / 254 17) The most accepted theory on mechanism of action of ingested fluoride is? a. Incorporation of fluoride in crystal structure of enamel b. Prevention of carbohydrate degradation c. Inhibition of microorganisms d. Absorption of fluoride ions on hydroxyapatite crystallites 18 / 254 18) Patient presents with rapidly progressive root caries on many teeth. Which of the following laboratory results would be a possible indicator of this? a. A plaque sample containing 5% S. mutans b. A. Stimulated salivary secretion rate of 1.5ml/min c. E. Salivary buffering PH 5.5 d. A lactobacilli concentration of 105 organism/ml e. S. mutans concentration of 105 organism/ml 19 / 254 19) Delayed eruption of at least part of the dentition is a recognized feature of all of the following except:? a. Cherubism b. Congenital hyperthyroidism c. Cleidocranial dysplasia d. Rickets 20 / 254 20) Buccal space is bounded posteriorly by ______ muscle.? a. Anterior edge of masseter b. Zygomaticus major c. Zygomaticus minor d. Lateral pterygoid 21 / 254 21) In erythema migrans ,which papilla of the tongue are absent? a. Filiform b. Circumvallate c. Foliate d. Fungiform 22 / 254 22) Hypoplastic defects in permanent central and lateral incisors are likely to result due to severe illness or other factors during:? a. First month of life b. First two years of life c. First nine months of life d. Two or three years of life 23 / 254 23) The tooth most commonly involved by dentigerous cyst is? a. Mandibular 2nd premolar b. Mandibular 3rd molar c. Maxillary canine d. Maxillary 3rd molar 24 / 254 24) A primordial cyst is now believed to represent? a. Botryoid odontogenic cyst b. Calcifying odontogenic cyst c. Odontogenic keratocyst d. Lateral periodontal cyst 25 / 254 25) False about anodontia:? a. May involve a single tooth b. May involve both the deciduous and permanent dentition c. In total anodontia, all teeth are missing d. In false anodontia, tooth doesn’t undergo full development 26 / 254 26) “Picket fence” or “Tombstone” appearance of basal cell layer of cyst lining is a characteristic feature seen in _________.? a. Radicular cyst b. Dentigerous cyst c. Odontogenic keratocyst d. Lateral periodontal cyst 27 / 254 27) Gorlin cyst is more commonly referred to as? a. Glandular odontogenic cyst b. Odontogenic keratocyst c. Lateral periodontal cyst d. Calcifying odontogenic cyst 28 / 254 28) Which theory of dental caries proposes that organic elements in teeth are the initial pathway of invasion of microorganisms? a. Chemicoparasitic b. Autoimmune c. Sucrose chelation d. Proteolytic 29 / 254 29) The etiology of which of the following gingival enlargements is still unknown? a. Scurvy b. Plasma cell gingivitis c. Fibromatosis gingivae d. Fibrous epulis 30 / 254 30) Tissue spaces are potential spaces located between? a. Muscles b. Ligaments c. Fascia d. Tendons 31 / 254 31) Root resorption is commonly seen in? a. Radicular cyst b. Periapical abscess c. Garre’s osteomyelitis d. Cellulitis 32 / 254 32) The primary microorganism in the etiology of Ludwig’s angina is? a. Staphylococci b. Streptococci c. Actinomyces d. None of above, it is a mixed infection 33 / 254 33) Which of the following is a radiographic feature of dentinogenesis imperfecta ? a. Small pulp chambers and root canals, normal enamel b. Pulp is normal but dentine is abnormal c. Enamel and dentine show disturbances d. Enamel is missing but dentine formation is normal 34 / 254 34) A patient notices a well demarcated area of depapillation on his tongue which has been ther for as long as he can remember. The most probable diagnosis is 😕 a. Median rhomboid glossitis b. Moeller’s glossitis c. Black hairy tongue d. Geographic tongue 35 / 254 35) A health 6 year old child presents with carious maxillary second primary molar with a necrotic pulp. Which treatment would be preferred? a. Pulpotomy b. Pulpectomy c. Extraction d. Indirect pulp treatment e. Antibiotic coverage 36 / 254 36) Community water fluoridation MOST effectively achieves is**? a. 90-95% reduction of caries b. 45-55% reduction of caries c. Reduces smooth surfaces more than pit and fissures d. Reduces pit and fissures caries more than smooth surfaces 37 / 254 37) A four year old child has less number of teeth and lateral incisors with bifurcated roots with two roots canals. This condition is called:? a. Fusion b. Germination c. Concrescence d. Dilaceration 38 / 254 38) A child has sustained a traumatic exposure of primary central incisor, he presents to you for treatment two days after the injury. Which of the following should be considered? a. Direct pulp capping b. Pulpectomy (RCT) c. Pulpotomy and Ca(OH)2 d. Pulpotomy and formocresol 39 / 254 39) Ludwig’s angina is diagnosed as such only when submandibular, submental and ______ spaces are involved together.? a. Buccal b. Submasseteric c. Sublingual d. Lateral pharyngeal 40 / 254 40) Bifid tongue, a congenital anomaly occurs due to non fusion of:? a. The two lateral linguai swellings b. Hypobranchial eminence and tuberculum impar c. Some of the above d. Tuberculum impar and lateral lingual swellings 41 / 254 41) An eruption cyst is a soft tissue analogue of? a. Odontogenic keratocyst b. Dentigerous cyst c. Gingival cyst of newborn d. Radicular cyst 42 / 254 42) Dilated odontome is a synonym of? a. Talon cusp b. Dens invaginatus c. Macrodontia d. Dens evaginatus 43 / 254 43) Odontolithiasis is better known as? a. Salivary calculi b. Plaque c. Caries d. Calculus 44 / 254 44) All except _________ are principal causes of halitosis.? a. Respiratory tract infection b. Sweet odor of diabetes c. Taurodontism d. Unclean prostheses 45 / 254 45) Which amongst the following correctly depicts the stages in formation of calculus? a. Bacterial colonization → Degradation of carbohydrates → Enamel dissolution b. Pellicle → Bacterial colonization → Degradation of carbohydrates. c. Pellicle → Bacterial colonization → Plaque formation and mineralization. d. Pellicle → Plaque maturation → Bacterial colonization → Calculus 46 / 254 46) Anodontia affects the growth of:? a. Mandible b. Maxilla c. Cranium d. Alveolar bone 47 / 254 47) Lateral pharyngeal space infections have the potential to spread upward through ________ and cause cavernous sinus thrombosis, meningitis and brain abscess.? a. Internal carotid artery b. Various foramina at base of skull c. External carotid artery d. Submandibular space 48 / 254 48) Which of the following is type of nursing bottle caries ? a. Recurrent b. Rampant c. Arrested d. Acute 49 / 254 49) What clinical evidence would support a diagnosis of acute dento-alveolar abscess? 1.Anegativereaction to the electric vitality tester. 2.A positive reaction of short duration to cold. 3.A positive reaction to percussion. 4.Presence of a draining fistula. a. All of the above. b. (1) and (3) c. (4) only d. (1) (2) (3) e. (2) and (4) 50 / 254 50) Which amongst the following drugs are capable of inducing gingivitis either directly or systemically? a. Dilantin b. Diclofenac c. Ampicillin d. Acyclovir 51 / 254 51) The tooth that is most susceptible to dental caries is? a. Maxillary 2nd premolars b. Mandibular 2nd molars c. Mandibular 1st molars d. Maxillary canines 52 / 254 52) Q4. Facial edema, cheilitis granolomatosa and fissured tongue characterize which of the following syndromes? a. Melkerson Rosenthal syndrome b. Down’s syndrome c. Frey’s syndrome d. Treacher Collins syndrome 53 / 254 53) All of the following except _______ occur as a sequel to pulpitis.? a. Apical periodontal cyst b. Periapical abscess c. Lateral periodontal cyst d. Periapical granuloma 54 / 254 54) Function(s) of the dental pulp include(s) ? 1.defensive. 2.sensory. 3.circulatory. 4.dentin repair. a. (1) and (3) b. All of the above c. (4) only d. (2) and (4) e. 1) (2) (3) 55 / 254 55) A dentigerous cyst develops due to collection of fluid between _________ and tooth surface.? a. Internal dental epithelium b. External dental epithelium c. Stellate reticulum d. Reduced dental epithelium 56 / 254 56) The objective of pulpotomy is to ? a. Preserve vitality of coronal pulp b. Preserve vitality of entire pulp c. None of the above d. Preserve vitality of radicular pulp e. Regenerate a degenerated and necrotic pulp 57 / 254 57) Dental plaque contains all of the following, except? a. Mucin b. Desquamated epithelial cells c. Microorganisms d. Exudate 58 / 254 58) Absence of pulp chambers is seen in:? a. Amelogenesis imperfect b. Detinogenesis imperfect c. AQny of the above d. Craniofacial dysostosis 59 / 254 59) The term dilacerations refers to:? a. A root or tooth that is split into two b. Abrasions on Two surfaces of a single tooth c. A tooth that is fractured at two or more places d. A deformity of a tooth consisting of a sharp bend in the root 60 / 254 60) Which one of the following is an important factor in the recurrence of odontogenic keratocysts? a. Presence of inflammation in connective tissue wall b. Friable and thin epithelial lining c. Development of new cysts from the cell rests of Malassezia in the vicinity d. Presence of exudate in the cyst lumen 61 / 254 61) Which amongst the following systemic diseases involves gingivae prominently? a. Leprosy b. Crohn’s disease c. Tuberculosis d. Syphilis 62 / 254 62) All are true about supernumerary tooth except:? a. Distomolars does not resemble any other tooth b. May have resemblance to normal teeth c. Mesiodens is the most common supernumerary tooth d. More common in mandible 63 / 254 63) A pseudopocket is? a. Pocket with base extending past cementoenamel junction b. Periodontal pocket with furcation involvement c. Pocket with base extending past the crest of alveolar bone d. Pocket limited to gingiva 64 / 254 64) Hairy tongue is characterized by:? a. Hypertrphy of fungiform papillae b. Hypertrophy of filiform papillae c. Hypertrophy of foliate papillae d. Hypertrophy of circumvallate papillae 65 / 254 65) Loss of organization of radicular dentin with subsequent shortening of root length is a feature of? a. Dentinogenesis imperfecta Type III b. Dentin dysplasia Type I c. Dentin dysplasia Type II d. Dentinogenesis imperfecta Type II 66 / 254 66) The earliest radiographic finding in periodontitis is? a. Loss of trabeculae in the alveolar crest b. Widening of periodontal space c. Blunting of alveolar crest d. Formation of suprabony pocket 67 / 254 67) The hardness of calculus is almost like that of? a. Cementum b. Enamel c. Dentin d. Bone 68 / 254 68) A well-defined radiolucent lesion attached to the neck of an impacted mandibular third molar in a 20-year-old male is most likely to be? a. Odontogenic keratocyst b. Lateral periodontal cyst c. Calcifying odontogenic cyst d. Dentigerous cyst 69 / 254 69) Which of the following microorganisms are most frequently found in infected root canals? a. Staphylococcus aureus. b. Streptococcus viridans. c. Lactobacilli. d. Staphylococcus albus. e. Enterococci. 70 / 254 70) Most common missing tooth in the permanent dentition is:? a. Mandibulary second premolar b. Maxillary canine c. Mandibulary first molar d. Maxillary first molar 71 / 254 71) Teeth that erupt within 30days of birth are called:? a. Natal teeth b. Prenatal teeth c. Neonatal teeth d. Primary teeth 72 / 254 72) Which of the following lesions does not give blood on aspiration? a. Static bone cyst b. Central giant cell granuloma c. Hemangioma d. Aneuwrysmal bone cyst 73 / 254 73) Condensing osteitis is another name for? a. Chronic focal sclerosing osteomyelitis b. Garre’s osteomyelitis c. Chronic diffuse sclerosing osteomyelitis d. Chronic suppurative osteomyelitis 74 / 254 74) Which of the following dental sequel is likely in child with history of generalized growth failure in the first six months of life? a. Retrusive mandible b. Enamel hypoplasia c. Dentinogenesis imperfect d. Retrusise maxilla 75 / 254 75) Spot the only inflammatory odontogenic cysts amongst the below given cysts? a. Lateral periodontal cyst b. Calcifying odontogenic cyst c. Odontogenic keratocyst d. Buccal bifurcation cyst 76 / 254 76) Sensitivity to electric pulp vitality tester in acute pulpitis is lost in later stages because of? a. Reduction in inflammatory exudate b. Necrosis of pulp c. Decreased secretion of prostaglandins d. Increase in the size of capillaries locally 77 / 254 77) Maximum accumulation of calculus can be seen in which of the following regions? a. Buccal surfaces of maxillary posterior teeth b. Buccal surfaces of mandibular anterior teeth c. Palatal surfaces of maxillary anterior teeth d. Palatal surfaces of maxillary posterior teeth 78 / 254 78) The lesion that is least likely to produce any noticeable signs or Symptoms is called.? a. Periapical abscess b. Radicular cyst c. Acute pulpitis d. Ludwig angina 79 / 254 79) Acute necrotizing ulcerative gingivitis is on the rise globally in association with? a. Tuberculosis b. AIDS c. Diabetes d. Hepatitis B 80 / 254 80) A lateral periodontal cyst must be distinguished radiologically from which other odontogenic cyst? a. Collateral keratocyst b. Eruption cyst c. Lateral dentigerous cyst d. Epstein’s pearls 81 / 254 81) Small, superficial, keratin filled cysts that are found on the alveolar mucosa of infants are most likely to be? a. Gingival cyst of the newborn b. Median mandibular cyst c. Nasopalatine duct cyst d. Eruption cyst 82 / 254 82) A patient presents with a 3 week history of prolonged tooth pain to hot and cold. Three days ago, the symptoms changed to moderate pain on biting combined with a dull, spontaneous ache relieved by cold. The most likely diagnosis is? a. acute pulpitis with periradicular periodontitis b. reversible pulpitis c. a vertical root fracture d. a cracked tooth e. chronic periradicular abscess 83 / 254 83) Oral foci of infection can be aggravated by all of the following conditions.? a. Tuberculosis b. Ischemic heart disease c. Diabetes d. Subacute bacterial endocarditis 84 / 254 84) The most common supernumerary tooth form is:? a. Screw shaped b. Tuberculated c. Conical d. Incisor shaped 85 / 254 85) Focal reversible pulpitis is most commonly seen in all of the following cases except? a. Shallow carious lesions b. Large metallic restorations c. Deep carious lesions d. Restorations with defective margins 86 / 254 86) An acute periapical abscess must be associated with 😕 1.pain. 2.sensitivity to percussion. 3.non-vital tooth. 4.periapical radiolucency. a. (1) (2) (3) b. (4) only c. (2) and (4) d. All of the above e. (1) and (3) 87 / 254 87) Absence of caries in _______ teeth helps to distinguish nursing bottle caries from rampant caries? a. Maxillary incisors b. Maxillary canines c. Mandibular incisors d. Mandibular canines 88 / 254 88) Which of the following is soft tissue cyst which do not produce any radiographic changes? a. Mid alveolar cyst b. Palatine cyst c. Nasopalatine cyst d. Nasolabial cyst 89 / 254 89) A four year old child has anormal complement of primary teeth, but they are gray and exhibit extensive occlusal and incisal wear. Radigraphic examination indicates extensive deposits of secondary dentin in these teeth. This condition is most likely:? a. Amelogenesis imperfecta b. Dentinogenesis imperfecta c. Cleidcranial dysplasia d. Neonatal hypoplasia 90 / 254 90) The MOST cariogenic sugar is? a. Amylase b. Lactose c. Glucose d. Sucrose 91 / 254 91) Botryoid odontogenic cyst is a variant of which of the following cysts? a. Odontogenic keratocyst b. Lateral periodontal cyst c. Gingival cyst of adults d. Calcifying odontogenic cyst 92 / 254 92) Of all the zones in enamel caries which zone is not always present? a. Surface b. Translucent c. Dark d. Body 93 / 254 93) A caries increment of __ or more new carious lesions over one year is considered characteristic of rampant caries? a. 8 b. 15 c. 5 d. 10 94 / 254 94) Ghost teeth is seen in which of the following? a. None of the above b. Regional odontodysplasia c. Dentin dysplasia d. Dens in dente 95 / 254 95) Which inorganic constituent is present in highest concentration in dental plaque? a. Iron b. Phosphorus c. Fluorine d. Calcium 96 / 254 96) Infection in the parotid space reaches as a backward extension along the parotid duct or from ______ space.? a. Lateral pharyngeal b. Buccal c. Infratemporal d. Retropharyngeal 97 / 254 97) State which amongst the below given factors is not an antibacterial factor present in saliva? a. Lysozyme b. Lysosome c. Lactoferrin d. SIGA(Secretory immunoglobulinA) 98 / 254 98) All of the following are common radiological features associated with a periapical granuloma EXCEPT.? a. Root resorption of involved tooth b. Well-defined radiopacity c. Well-defined radiolucency with sclerotic borders d. Thickening of PDL around root apex 99 / 254 99) The submaxillary or submandibular space is bounded laterally by? a. Carotid fascia b. Mylohyoid muscle c. Skin and superficial fascia d. Omohyoid 100 / 254 100) Which antibiotic administered in childhood may result in tooth discolouration? a. Penicillin b. Streptomycin c. All of the above d. Tetracycline 101 / 254 101) All, except ________, are believed to be causative factors of desquamative gingivitis.? a. Hormonal influences b. Idiopathic c. Dermatoses d. Decreased resistance to infections 102 / 254 102) The most commonly employed fluoride in dentifrices is? a. Sodium fluoride b. Sodium monofluorophosphate c. Stannous fluoride d. Acidulated phosphate fluoride 103 / 254 103) The pterygomandibular space abscess must be distinguished from the _______ space.? a. Infratemporal b. Retropharyngeal c. Peritonsillar d. Submasseteric 104 / 254 104) The most common cause of odontalgia is? a. Pulpitis b. Root fracture c. Dental caries d. Periodontitis 105 / 254 105) All of the following except _____________ are examples of developmental odontogenic cysts.? a. Calcifying odontogenic cyst b. Lateral periodontal cyst c. Radicular cyst d. Gingival cyst of adults 106 / 254 106) All of the following statements except _______ are true regarding odontogenic keratocyst? a. Epithelial lining is thin and friable b. Originates from cell rests of Malassezia c. Epithelial lining is keratinized d. Seen primarily in mandibular molar—Ascending ramus region 107 / 254 107) The base of invagination of crown/root in dens invaginates contains? a. Dystrophic cementum b. Necrotic pulp tissue c. Dystrophic dentin d. Dystrophic enamel 108 / 254 108) Which of the following may affect the results of electric pulp testing? a. Analgesics. b. Emotional factors. c. Pain threshold. d. Recent trauma. e. All of the above. 109 / 254 109) Mottled enamel is due to:? a. Vitamin D deficiency b. Excess of fluoride c. Vitamin A deficiency d. Teratogens 110 / 254 110) One of the early microscopic signs of advancement of inflammatory process into the periodontium is? a. Appearance of osteoclasts on alveolar crest b. Ulceration of crevicular epithelium c. Appearance of osteoblasts on alveolar crest d. Infiltration of connective tissue with plasma cells 111 / 254 111) During the course of gingivitis if bony changes become evident on a radiograph, the condition is then referred to as? a. Plasma cell gingivitis b. Periodontitis c. Desquamative gingivitis d. Acute necrotizing ulcerative gingivitis 112 / 254 112) Which one of the following odontogenic cysts grows in an anteroposterior direction within the medullary spaces of bone? a. Radicular cyst b. Dentigerous cyst c. Odontogenic keratocyst d. Gingival cyst of adults 113 / 254 113) Nursing bottle caries is a type of _______ caries? a. Acute b. Arrested c. Recurrent d. Rampant 114 / 254 114) Lamina dura is actually ? a. Cribriform plate perforated by nutrient carnally b. Immature bone c. Cortical bone d. Spongy bone 115 / 254 115) Bitewing x rays are taken to assist in the detection of caries**? a. Occlusally b. Gingivally c. Interproximally d. Lingually e. Buccally 116 / 254 116) Pterygomandibular space infection arises as a result of extension of infection in ________ region.? a. Mandibular 3rd molar b. Mandibular canine c. Mandibular 2nd molar d. Maxillary tuberosity 117 / 254 117) Pulp reacts to electric pulp vitality tester at higher levels in chronic pulpitis due to? a. Deposition of collagen around inflamed area b. Slow advance of pulp inflammation c. Degeneration of nerves in affected pulp d. Lack of edema fluid collection within inflamed pulp 118 / 254 118) Which product of the streptococci is responsible for adherence of the dental plaque to the smooth surfaces of teeth? a. Glucan b. Glycosaminoglycan c. Proteoglycan d. Glycoprotein 119 / 254 119) Gardner syndrome does not include”? a. OsteosarcomaDentinogenesis imperfect is: b. Epidermoid cysts c. Osteomas d. Impacted permanent teeth 120 / 254 120) Which is the principal buffering ion present in saliva? a. Fluoride b. Bismuth c. Bicarbonate d. Phosphorus 121 / 254 121) Amelogenesis imperfecta is? a. a multifactorial disorder b. caused by environmental factors c. a hereditary condition with different inheritance patterns d. associated with osteogenesis imperfecta 122 / 254 122) The mechanism of cariostatic action of chlorhexidine is? a. Inhibition of carbohydrate degradation b. Inhibition of microorganisms c. Absorption into enamel crystals d. Absorption into enamel crystals and salivary mucins 123 / 254 123) In which type of osteomyelitis will you find focal gross thickening of periosteum with peripheral reactive bone formation? a. Florid osseous dysplasia b. Garre’s osteomyelitis c. Chronic diffuse sclerosing osteomyelitis d. Chronic focal sclerosing osteomyelitis 124 / 254 124) Which of the following is NOT characteristic of Down’s syndrome? a. Macrodontia b. Congenitally missing teeth c. Decreased neutrophil function d. An increased susceptibility to periodontal disease e. Macroglossia 125 / 254 125) Factors that interfere with reattachment of fibrous connective tissue to the tooth include all of these except? a. Tooth mobility b. Necrotic cementum c. Crevicular epithelium d. Dental caries 126 / 254 126) All, of the following except _______ are potentially serious complications of ANUG.? a. Squamous cell carcinoma b. Noma c. Toxemia d. Septicemia 127 / 254 127) Chronic periodontitis usually begins as? a. Pyogenic granuloma b. Marginal gingivitis c. Chronic gingivitis d. Marginal periodontitis 128 / 254 128) Transillumination is used to**? a. Hemorrhagic pulp b. Calculus c. Pulp-stones d. To detect caries e. To find intrinsic tooth coloration 129 / 254 129) An infrabony pocket is a pocket with bone on its ________ wall.? a. Lateral b. Buccal c. Lingual d. Apical 130 / 254 130) The swelling in case of Ludwig’s angina, usually occurs in? a. Tongue b. Maxillary tuberosity c. Floor of mouth d. Larynx 131 / 254 131) Palmar and plantar hyperkeratosis, generalized hyperhidrosis, peculiar dirty colored skin along with aggressive periodontitis is referred to as? a. Scurvy b. Frey’s syndrome c. Papillon—Lefevre syndrome d. Desquamative gingivitis 132 / 254 132) Undermining of enamel occurs due to? a. Lateral spread of caries at the dentinoenamel junction b. Lateral spread of caries midway between enamel and dentin c. Spread of caries along dentinal tubules d. Lateral spread of caries midway between dentin and pulp 133 / 254 133) Which of the following is LEAST likely to cause pain? a. Acute pulpitis. b. Chronic hyperplastic pulpitis (pulp polyp). c. Apical periodontitis. d. Carious pulp exposure. 134 / 254 134) Microscopic features of ___________ in some areas sometimes resemble those of a low grade mucoepidermoid carcinoma.? a. Buccal bifurcation cyst b. Gingival cyst of the newborn c. Sialo-odontogenic cyst d. Nasopalatine duct cyst 135 / 254 135) Internal resorption of RC usually? a. Asymptomatic b. Sensitive to cold c. Sensitive to heat d. Painful 136 / 254 136) Bohn’s nodules are:? a. Warts on the tongue b. Cystic swelling in neonates c. Cysts of gingiva in growing children d. Cysts associated with soft palate 137 / 254 137) The appearance of normal thickness enamel with extremely thin dentin and abnormally large pulp chamber is indicative of? a. Dentinogenesis Type III b. Amelogenesis imperfecta c. Dentinogenesis imperfecta Type I d. Dentin dysplasia Type II 138 / 254 138) A common odontogenic tumor, odontoma is most commonly associated with? a. Calcifying odontogenic cyst b. Dentigerous cyst c. Radicular cyst d. Odontogenic keratocyst 139 / 254 139) Lingual tonsil arises:? a. From carcinomatous transformation b. As a result of hyperplasia c. Due to repeated trauma in the area d. As developmental anomalies 140 / 254 140) Which one of the following cysts is considered to be a soft tissue counterpart of lateral periodontal cyst? a. Gingival cyst of adults b. Gingival cyst of newborn c. Radicular cyst d. Calcifying odontogenic cyst 141 / 254 141) Pregnancy gingivitis is essentially a? a. Plasma cell gingivitis b. Pyogenic granuloma c. Peripheral ossifying fibroma d. Fibrous epulis 142 / 254 142) Microdontia is seen most commonly affecting:? a. Mandibular first molar b. Mandibular second incisor c. Mandibular second premolar d. Maxillary lateral incisor 143 / 254 143) The sinus polyps of chronic maxillary sinusitis microscopically show? a. Hyperplastic granulation tissue with lymphocytic infiltration b. Hyperplastic stratified squamous epithelium c. Hyperplastic ciliated epithelium d. Hyperplastic pseudostratified squamous epithelium 144 / 254 144) Nasolabial cyst is thought to arise from:? a. Maxillary sinus lining epithelium b. Remnants of cell rests of embryonic lacramal duct c. Remnant of cell rests of Malassez d. Remnants of cells rests of Serres 145 / 254 145) Most accepted explanation for anachoretic pulpitis is? a. Increased vascular pressure b. Increased capillary permeability c. Lack of collateral blood supply d. Presence of large number of dilated capillaries 146 / 254 146) A median palatal cyst arises from? a. Cystic degeneration of epithelial rests of Malassezia b. Cystic degeneration of rests of dental lamina c. Epithelium entrapped along the line of fusion of palatalprocesses of maxilla d. Cystic degeneration of remnants of nasopalatine duct 147 / 254 147) Pain which increases in intensity as the patient lies down is characteristic of? a. Chronic hyperplastic pulpitis b. Chronic pulpitis c. Focal reversible pulpitis d. Acute pulpitis 148 / 254 148) Phlegmon is also known as? a. Osteomyelitis b. Cellulitis c. Diabetes d. Abscess 149 / 254 149) The lateral radicular cyst arises from? a. Overlying oral epithelium b. Dental lamina c. Cell rests of Serres d. Cell rests of Malassez 150 / 254 150) Which one of the following is not a radiographic variety of dentigerous cyst? a. Collateral b. Central c. Lateral d. Circumferential 151 / 254 151) What is the causative factor of plasma cell gingivitis? a. Allergy to a component of chewing gum, dentifrices or food component b. Infection by herpes zoster virus c. Infection by filamentous bacteria d. Allergy to antibiotics 152 / 254 152) Apical periodontal cyst usually occurs as a sequela of? a. Periapical granuloma b. Acute pulpitis c. (c) Osteomyelitis d. Periodontal abscess 153 / 254 153) Which teeth are most commonly involved by chronic hyperplastic pulpitis? a. Deciduous anteriors and permanent canines b. Deciduous canines and permanent incisors c. Deciduous molars and permanent 1st molars d. Exclusively deciduous molars 154 / 254 154) Mediastinitis results from downward extension of ______ space infection.? a. Pterygomandibular b. Retropharyngeal c. Infratemporal d. Lateral pharyngeal 155 / 254 155) Dentinogenesis imperfecta is:? a. Not a inheritable trait b. Autosomal recessive c. Sex linked recessive d. Autosomal dominant 156 / 254 156) What is the percentage of fluoride in acidulated phosphate fluoride (APF) gels? a. 2.34 percent b. 3.45 percent c. 1.24 percent d. 1.23 percent 157 / 254 157) Ludwig’s angina is a severe form of? a. Cardiac disease b. Osteomyelitis c. Cellulitis d. Abscess 158 / 254 158) True generalized microdontia is chacaterised by:? a. Large teeth with small jaws b. Smaller teeth than the normal c. Small teeth with small jaws d. Small teeth with large jaws 159 / 254 159) What is the earliest histological evidence of dentinal caries? a. Transparent dentin b. Lateral spread of caries along dentino-enamel junction c. Fatty degeneration of odontoblastic processes d. Miller’s liquefaction foci 160 / 254 160) Lack of development of six or more teeth is denoted by the term? a. Anodontia b. Oligodontia c. Hypodontia d. Partial anodontia 161 / 254 161) The chief inorganic component in calculus is? a. Calcium carbonate b. Calcium phosphate c. Calcium sulfate d. Hydroxyapatite 162 / 254 162) A smooth, translucent swelling on gingival mucosa overlying the crown of an erupting tooth is suggestive of? a. Gingival cyst of adults b. Gingival cyst of newborn c. Eruption cyst d. Parulis 163 / 254 163) Using fluoride in the root surface caries is to protect? a. Cuticle b. Dentine and cementum c. All of the above d. Enamel 164 / 254 164) Cholesterol clefts observed in periapical granulomas are derived From? a. Breakdown of cholesterol b. Breakdown of RBCs c. Breakdown of adipose cells d. Breakdown of epithelial cells 165 / 254 165) All of the following statements except one are true regarding chronic periodontitis? a. Patients may complain bleeding gums and hyper-sensitivity around necks of their teeth b. The epithelial attachment begins to migrate cervically c. Teeth become mobile d. It begins as marginal gingivitis 166 / 254 166) Which amongst the following factors does not contribute towards greater caries resistance of the surface enamel of a tooth? a. Lesser mineral content b. Slower dissolution in acids c. Fluoride content d. Lesser water content 167 / 254 167) All of the following occur as a sequel to pulpitis Except? a. Periapical abscess b. Apical periodontal cyst c. Periapical granuloma d. Lateral periodontal cyst 168 / 254 168) All except _____ are deposits found on tooth surfaces.? a. Acquired pellicle b. Plaque c. Calculus d. Nasmyth’s membrane 169 / 254 169) The least likely location for occurrence of smooth surface caries is:? a. Proximal surfaces of all teeth b. Labial surface of maxillary incisors c. Gingival 1/3rd of lingual surfaces of teeth d. Gingival 1/3rd of buccal surfaces of teeth 170 / 254 170) Microabscess formation within inflamed pulp is characteristicOf? a. Acute pulpitis b. Pulp hyperemia c. Focal reversible pulpitis d. Chronic pulpitis 171 / 254 171) Foam cells within periapical granulomas are ______ cells that have ingested lipids.? a. Polymorphonuclear leukocytes b. Plasma cells c. Macrophages d. Langerhans cells 172 / 254 172) Infection in sublingual space may arise as an extension from ______ space.? a. Submandibular b. Buccal c. Submasseteric d. Submental 173 / 254 173) True ankyloglossia occurs as a result of:? a. Short lingual frenum b. Absence of lingual frenum c. Lingual frenum attached to the tip of the tongue d. Union between tongue and floor of the mouth/ ventral surface of the tongue 174 / 254 174) Which of the following anomalies occurs during the initiation and proliferation stages of tooth development? a. Enamel hypoplasia b. Amelogenesis imperfecta c. Ankylosis d. Oligodontia e. Dentinogenesis imperfecta 175 / 254 175) Clinical evidence of dentinogenesis imperfect is:? a. Defective dentine and obliterated pulp chamber b. Defective enamel and dentine c. Increased rate of caries d. Oligodontia 176 / 254 176) The localized form of aggressive periodontitis is largely caused by all of the following bacteria except? a. Porphyromonas gingivalis b. Actinomyces actinomycetemcomitans c. Lactobacillus acidophilus d. Bacteroides forsythus 177 / 254 177) Antrolith can be detected in? a. Odontogenic maxillary sinusitis b. Chronic sialadenitis c. Acute maxillary sinusitis d. Chronic maxillary sinusitis 178 / 254 178) Size of pulp chamber within the tooth is influenced by? a. History of the tooth /abrasion, erosion, caries/ b. All of the above c. Parafunctional d. Age 179 / 254 179) Identify which amongst the below given bacteria does not cause dental caries.? a. L. acidophilus b. S. aureus c. S. mutans d. A. naeslundii 180 / 254 180) Which amongst the following characteristics is not associated with chronic hyperplastic pulpitis? a. Occurs around margins of a restoration b. Open carious lesion c. Occurs in people with high tissue resistance d. Occurs in children and young adults 181 / 254 181) Dental anomaly of teeth associated with defective bone formation is seen in:? a. Dentinogegesis imperfecta b. Amelogenesis imperfect c. Osteitis deformans d. Odontodysplasia