/254 19 Dental Pathology Preparation (Pr. Tuy Tel) 1 / 254 1) Which of the following is soft tissue cyst which do not produce any radiographic changes? a. Nasopalatine cyst b. Mid alveolar cyst c. Nasolabial cyst d. Palatine cyst 2 / 254 2) Which one of the following cysts is considered to be a soft tissue counterpart of lateral periodontal cyst? a. Radicular cyst b. Gingival cyst of adults c. Gingival cyst of newborn d. Calcifying odontogenic cyst 3 / 254 3) False about anodontia:? a. May involve both the deciduous and permanent dentition b. In false anodontia, tooth doesn’t undergo full development c. May involve a single tooth d. In total anodontia, all teeth are missing 4 / 254 4) Spot the only inflammatory odontogenic cysts amongst the below given cysts? a. Calcifying odontogenic cyst b. Odontogenic keratocyst c. Lateral periodontal cyst d. Buccal bifurcation cyst 5 / 254 5) Chronic apical periodontitis is another name of? a. Periapical cyst b. Periapical granuloma c. Phoenix abscess d. Periapical abscess 6 / 254 6) Which one of the following is the initial treatment for internal resorption? a. Pulpectomy. b. Pulpotomy. c. Apicoectomy. d. Pulp capping. 7 / 254 7) Multiple odontogenic keratocysts, basal cell carcinomas and bifid ribs are features of ________ syndrome.? a. Gardner b. Gorlin-Goltz c. Kelly Paterson d. Grinspan 8 / 254 8) In developing plaque; the adhesive polymer produced by streptococcus mutans is synthesis from? a. Amylose b. Glucose c. Fructose d. Sucrose e. Lactose 9 / 254 9) All of the following except _______ occur as a sequel to pulpitis.? a. Periapical granuloma b. Apical periodontal cyst c. Lateral periodontal cyst d. Periapical abscess 10 / 254 10) Prolonged administration of broad spectrum antibiotics results in the formation of 😕 a. Geographic tongue b. Fissured tongue c. Black hairy tongue d. Median rhomboid glossitis 11 / 254 11) The hardness of calculus is almost like that of? a. Enamel b. Dentin c. Bone d. Cementum 12 / 254 12) Dentinogenesis imperfect differs from amelogenesis imperfect in that, the former is:? a. The result of faulty enamel matrix formation b. A hereditary disturbance c. Characterized by calcification of pulp chambers and the root canals of the teeth d. The result of excessive fluoride ingestion 13 / 254 13) Which of the following may affect the results of electric pulp testing? a. Pain threshold. b. All of the above. c. Recent trauma. d. Emotional factors. e. Analgesics. 14 / 254 14) Q4. Facial edema, cheilitis granolomatosa and fissured tongue characterize which of the following syndromes? a. Down’s syndrome b. Treacher Collins syndrome c. Melkerson Rosenthal syndrome d. Frey’s syndrome 15 / 254 15) Tissue spaces are potential spaces located between? a. Fascia b. Tendons c. Muscles d. Ligaments 16 / 254 16) The most common cause of odontalgia is? a. Dental caries b. Pulpitis c. Periodontitis d. Root fracture 17 / 254 17) As far as localised alveolar osteitis is concerned; which one of the following is true? a. The incidence in the mandible and maxilla is similar b. Purulent exudate must be seen for a diagnosis and irrigation ismandatory c. The prophylactic prescription of antibiotics prior to extraction reduces the incidence. d. Zinc oxide eugenol and alvogyl dressing promote a rapid bone growth e. Excessive fibrinolysis is the likely aetiology 18 / 254 18) In which situation the translucency of a tooth is lost? a. All of the above b. Pulp stone c. Complete calcification of pulp chamber d. Death of the pulp e. Hyperaemia 19 / 254 19) Microscopic features of ___________ in some areas sometimes resemble those of a low grade mucoepidermoid carcinoma.? a. Buccal bifurcation cyst b. Sialo-odontogenic cyst c. Gingival cyst of the newborn d. Nasopalatine duct cyst 20 / 254 20) Community water fluoridation MOST effectively achieves is**? a. 45-55% reduction of caries b. Reduces smooth surfaces more than pit and fissures c. Reduces pit and fissures caries more than smooth surfaces d. 90-95% reduction of caries 21 / 254 21) What is the causative factor of plasma cell gingivitis? a. Infection by filamentous bacteria b. Infection by herpes zoster virus c. Allergy to antibiotics d. Allergy to a component of chewing gum, dentifrices or food component 22 / 254 22) Loss of organization of radicular dentin with subsequent shortening of root length is a feature of? a. Dentin dysplasia Type II b. Dentinogenesis imperfecta Type II c. Dentinogenesis imperfecta Type III d. Dentin dysplasia Type I 23 / 254 23) In young children what is the commonest finding after dental complaint? a. Chronic periodontal abscess b. Apical abscess c. Acute periodontal abscess d. Chronic alveolar absces 24 / 254 24) Which of the following is LEAST likely to cause pain? a. Carious pulp exposure. b. Apical periodontitis. c. Chronic hyperplastic pulpitis (pulp polyp). d. Acute pulpitis. 25 / 254 25) Which of the following dental sequel is likely in child with history of generalized growth failure in the first six months of life? a. Retrusise maxilla b. Enamel hypoplasia c. Retrusive mandible d. Dentinogenesis imperfect 26 / 254 26) Hypoplasia as seen in x rays**? a. Sometimes large pulp chamber b. Thick enamel surface c. Can not be detected on X rays d. Thin enamel surface 27 / 254 27) Undermining of enamel occurs due to? a. Lateral spread of caries at the dentinoenamel junction b. Lateral spread of caries midway between dentin and pulp c. Lateral spread of caries midway between enamel and dentin d. Spread of caries along dentinal tubules 28 / 254 28) Which of the following is fissural cyst? a. Radicular cyst b. Primordial cyst c. Nasopalatine cyst d. Dentigerous cyst 29 / 254 29) Which amongst the following characteristics is not associated with chronic hyperplastic pulpitis? a. Occurs in people with high tissue resistance b. Occurs in children and young adults c. Occurs around margins of a restoration d. Open carious lesion 30 / 254 30) Lamina dura is actually ? a. Cribriform plate perforated by nutrient carnally b. Spongy bone c. Cortical bone d. Immature bone 31 / 254 31) Giant cell hyaline angiopathy and Rushton bodies are associated with which of the following lesions? a. Periapical granuloma b. Odontogenic keratocyst c. Pulp polyp d. Ludwig angina 32 / 254 32) Botryoid odontogenic cyst is a variant of which of the following cysts? a. Gingival cyst of adults b. Lateral periodontal cyst c. Calcifying odontogenic cyst d. Odontogenic keratocyst 33 / 254 33) The lateral pharyngeal space is bounded laterally by? a. Carotid sheath b. External carotid artery c. Internal carotid artery d. External jugular vein 34 / 254 34) Internal resorption of RC usually? a. Asymptomatic b. Sensitive to heat c. Sensitive to cold d. Painful 35 / 254 35) Small, superficial, keratin filled cysts that are found on the alveolar mucosa of infants are most likely to be? a. Median mandibular cyst b. Gingival cyst of the newborn c. Eruption cyst d. Nasopalatine duct cyst 36 / 254 36) The factor that is least associated with increased incidence of dental caries is? a. Carbohydrate rich diet b. Quantity of saliva c. Malposed tooth d. Smoking 37 / 254 37) 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 38 / 254 38) A deep pit lined by enamel seen in the lingual surface of maxillary lateral incisor is most likely to be:? a. Enamel hypoplasia b. Enamel cusp c. Talon’s cusp d. Dens in dente 39 / 254 39) When percussion on the occlusal surface of a tooth results in a positive response, the most likely etiology of inflammation is? a. Periodontal. b. Pulpal. c. Periapical. d. None of the above 40 / 254 40) Infection in sublingual space may arise as an extension from ______ space.? a. Submental b. Submandibular c. Submasseteric d. Buccal 41 / 254 41) 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 42 / 254 42) Which one of the following odontogenic cysts grows in an anteroposterior direction within the medullary spaces of bone? a. Gingival cyst of adults b. Odontogenic keratocyst c. Dentigerous cyst d. Radicular cyst 43 / 254 43) True ankyloglossia occurs as a result of:? a. Union between tongue and floor of the mouth/ ventral surface of the tongue b. Lingual frenum attached to the tip of the tongue c. Short lingual frenum d. Absence of lingual frenum 44 / 254 44) Inferior portion of _______ space is called as pterygomandibular space.? a. Temporal b. Buccal c. Infratemporal d. Masseteric 45 / 254 45) ANUG is now believed to be caused by a fusiform bacteria and? a. Treponema pallidum b. Actinomyces naeslundii c. Actinomyces israelii d. Borrelia vincentii 46 / 254 46) Focal reversible pulpitis is most commonly seen in all of the following cases except? a. Restorations with defective margins b. Large metallic restorations c. Shallow carious lesions d. Deep carious lesions 47 / 254 47) Which of the following tests is most useful in differentiating between an acute apical abscess and an acute periodontal abscess? a. Radiography. b. Percussion c. Palpation. d. Pulp vitality. 48 / 254 48) Ludwig’s angina is a severe form of? a. Cardiac disease b. Cellulitis c. Osteomyelitis d. Abscess 49 / 254 49) Pulpitis aperta and pulpitis clausa refer to types of pulpitis classified on the basis of? a. Severity of inflammation b. Extent of inflammation c. Presence/absence of direct communication with oral cavity d. Location of inflammation 50 / 254 50) Mediastinitis results from downward extension of ______ space infection.? a. Retropharyngeal b. Pterygomandibular c. Infratemporal d. Lateral pharyngeal 51 / 254 51) A permanent tooth with local hypoplastic deformity in crown is called:? a. Ghost teeth b. Taurodontism c. Turner’s tooth d. Enameloma 52 / 254 52) Patient presents with rapidly progressive root caries on many teeth. Which of the following laboratory results would be a possible indicator of this? a. S. mutans concentration of 105 organism/ml b. A lactobacilli concentration of 105 organism/ml c. A plaque sample containing 5% S. mutans d. E. Salivary buffering PH 5.5 e. A. Stimulated salivary secretion rate of 1.5ml/min 53 / 254 53) Apical periodontal cyst usually occurs as a sequela of? a. Acute pulpitis b. Periodontal abscess c. (c) Osteomyelitis d. Periapical granuloma 54 / 254 54) Which of these factors has not been assigned an essential role in Miller’s chemicoparasitic theory of dental caries? a. Carbohydrates b. Acids c. Heredity d. Microorganisms 55 / 254 55) Factors that interfere with reattachment of fibrous connective tissue to the tooth include all of these except? a. Crevicular epithelium b. Tooth mobility c. Necrotic cementum d. Dental caries 56 / 254 56) Hairy tongue is characterized by:? a. Hypertrophy of foliate papillae b. Hypertrophy of filiform papillae c. Hypertrphy of fungiform papillae d. Hypertrophy of circumvallate papillae 57 / 254 57) Which one of the following is an important factor in the recurrence of odontogenic keratocysts? a. Presence of inflammation in connective tissue wall b. Presence of exudate in the cyst lumen c. Friable and thin epithelial lining d. Development of new cysts from the cell rests of Malassezia in the vicinity 58 / 254 58) Clinical evidence of dentinogenesis imperfect is:? a. Increased rate of caries b. Defective dentine and obliterated pulp chamber c. Oligodontia d. Defective enamel and dentine 59 / 254 59) A health 6 year old child presents with carious maxillary second primary molar with a necrotic pulp. Which treatment would be preferred? a. Pulpectomy b. Extraction c. Indirect pulp treatment d. Antibiotic coverage e. Pulpotomy 60 / 254 60) Which is considered to be one of the most important predisposing factors in the causation of ANUG? a. Malnutrition b. Hormonal changes c. Allergy to drugs d. Decreased resistance to infections 61 / 254 61) The occurrence of odontogenic maxillary sinusitis is dependent to a great extent on the relation and proximity of ______ to the maxillary sinus.? a. Canine, first and second premolars b. Canine and first premolar c. Second premolar, first and second molar d. Second and third molars 62 / 254 62) The phenomenon by which bacteria circulating in blood accumulate at the site of pulpal inflammation is called as? a. Chemotaxis b. Aerodontalgia c. Retrograde pulpitis d. Anachoretic pulpitis 63 / 254 63) Delayed eruption of at least part of the dentition is a recognized feature of all of the following except:? a. Cherubism b. Rickets c. Cleidocranial dysplasia d. Congenital hyperthyroidism 64 / 254 64) Pulp reacts to electric pulp vitality tester at higher levels in chronic pulpitis due to? a. Degeneration of nerves in affected pulp b. Slow advance of pulp inflammation c. Deposition of collagen around inflamed area d. Lack of edema fluid collection within inflamed pulp 65 / 254 65) Acute necrotizing ulcerative gingivitis is on the rise globally in association with? a. AIDS b. Tuberculosis c. Hepatitis B d. Diabetes 66 / 254 66) Which of the following anomalies occurs during the initiation and proliferation stages of tooth development? a. Amelogenesis imperfecta b. Ankylosis c. Dentinogenesis imperfecta d. Enamel hypoplasia e. Oligodontia 67 / 254 67) The pterygomandibular space abscess must be distinguished from the _______ space.? a. Infratemporal b. Retropharyngeal c. Peritonsillar d. Submasseteric 68 / 254 68) Nasolabial cyst is thought to arise from:? a. Remnants of cell rests of embryonic lacramal duct b. Remnants of cells rests of Serres c. Maxillary sinus lining epithelium d. Remnant of cell rests of Malassez 69 / 254 69) Spot the only fissural/inclusion cyst amongst the below given cysts? a. Dentigerous cyst b. Nasopalatine duct cyst c. Glandular odontogenic cyst d. Lateral periodontal cyst 70 / 254 70) The chief inorganic component in calculus is? a. Calcium sulfate b. Hydroxyapatite c. Calcium carbonate d. Calcium phosphate 71 / 254 71) Fordyce’s spots are:? a. All of the above b. Red spots c. Fat tissue embedded in buccal mucosa d. Present on the cheek mucosa lateral to the angle of the mouth 72 / 254 72) Bitewing x rays are taken to assist in the detection of caries**? a. Occlusally b. Interproximally c. Lingually d. Buccally e. Gingivally 73 / 254 73) All are true about supernumerary tooth except:? a. Distomolars does not resemble any other tooth b. More common in mandible c. May have resemblance to normal teeth d. Mesiodens is the most common supernumerary tooth 74 / 254 74) 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. (1) and (3) b. (4) only c. (1) (2) (3) d. (2) and (4) e. All of the above. 75 / 254 75) Lingual tonsil arises:? a. From carcinomatous transformation b. As developmental anomalies c. As a result of hyperplasia d. Due to repeated trauma in the area 76 / 254 76) Which primary teeth are LEAST affected with the nursing bottle syndrome? a. Maxillary and mandibular canines b. Mandibular molars c. Maxillary incisors d. Maxillary molars e. Mandibular incisors 77 / 254 77) Which surface of a tooth has maximum susceptibility for occurrence of dental caries? a. Distal b. Occlusal c. Mesial d. Lingual 78 / 254 78) Submental space extends from the anterior border of submandibular space to? a. Midline b. Sublingual space c. Symphysis menti d. Mandibular incisors 79 / 254 79) Odontolithiasis is better known as? a. Caries b. Salivary calculi c. Plaque d. Calculus 80 / 254 80) Identify which amongst the below given bacteria does not cause dental caries.? a. S. mutans b. A. naeslundii c. L. acidophilus d. S. aureus 81 / 254 81) The lateral radicular cyst arises from? a. Dental lamina b. Cell rests of Malassez c. Cell rests of Serres d. Overlying oral epithelium 82 / 254 82) Ghost teeth is seen in which of the following? a. None of the above b. Dentin dysplasia c. Regional odontodysplasia d. Dens in dente 83 / 254 83) Dental anomaly of teeth associated with defective bone formation is seen in:? a. Amelogenesis imperfect b. Osteitis deformans c. Dentinogegesis imperfecta d. Odontodysplasia 84 / 254 84) Carcinoma arising within the odontogenic cyst linings is a complication seen most commonly in which cyst? a. Odontogenic keratocyst b. Lateral periodontal cyst c. Radicular cyst d. Dentigerous cyst 85 / 254 85) The sinus polyps of chronic maxillary sinusitis microscopically show? a. Hyperplastic stratified squamous epithelium b. Hyperplastic pseudostratified squamous epithelium c. Hyperplastic granulation tissue with lymphocytic infiltration d. Hyperplastic ciliated epithelium 86 / 254 86) Ectopic sebaceous glands in the mouth are called”? a. Linea alba buccalis b. Fordyce spots c. Lingual varices d. Heck’s disease 87 / 254 87) 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. Pulpectomy (RCT) b. Direct pulp capping c. Pulpotomy and Ca(OH)2 d. Pulpotomy and formocresol 88 / 254 88) 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. Dentigerous cyst b. Odontogenic keratocyst c. Lateral periodontal cyst d. Calcifying odontogenic cyst 89 / 254 89) Mottled enamel is due to:? a. Vitamin D deficiency b. Excess of fluoride c. Teratogens d. Vitamin A deficiency 90 / 254 90) The syndrome which consist of clef palate, micrognathia and glossoptosis is known as? a. Crouzon’s syndrome b. Pierre Robin syndrome c. Paget’s disease d. Marfan’s syndrome 91 / 254 91) Pain which increases in intensity as the patient lies down is characteristic of? a. Focal reversible pulpitis b. Chronic hyperplastic pulpitis c. Chronic pulpitis d. Acute pulpitis 92 / 254 92) Function(s) of the dental pulp include(s) ? 1.defensive. 2.sensory. 3.circulatory. 4.dentin repair. a. (2) and (4) b. All of the above c. 1) (2) (3) d. (1) and (3) e. (4) only 93 / 254 93) A radiograph reveals a radiolucency associated with the apex of tooth 1.5. There is a large restoration but the tooth is asymptomatic and the associated soft tissues appear normal. What is the most likely diagnosis? a. Acute periradicular periodontitis b. Chronic suppurative periradicular periodontitis. c. Chronic periradicular periodontitis. d. Acute periradicular abscess 94 / 254 94) Phlegmon is also known as? a. Diabetes b. Osteomyelitis c. Abscess d. Cellulitis 95 / 254 95) A smooth, translucent swelling on gingival mucosa overlying the crown of an erupting tooth is suggestive of? a. Eruption cyst b. Gingival cyst of adults c. Gingival cyst of newborn d. Parulis 96 / 254 96) All, of the following except _______ are potentially serious complications of ANUG.? a. Toxemia b. Squamous cell carcinoma c. Septicemia d. Noma 97 / 254 97) Which one of the following situations can be a source of focal infection in oral cavity? a. Periodontal disease b. Periapical abscess c. Odontogenic keratocyst d. Periapical granuloma 98 / 254 98) The localized form of aggressive periodontitis is largely caused by all of the following bacteria except? a. Porphyromonas gingivalis b. Bacteroides forsythus c. Actinomyces actinomycetemcomitans d. Lactobacillus acidophilus 99 / 254 99) A caries increment of __ or more new carious lesions over one year is considered characteristic of rampant caries? a. 10 b. 15 c. 5 d. 8 100 / 254 100) A dentigerous cyst develops due to collection of fluid between _________ and tooth surface.? a. External dental epithelium b. Reduced dental epithelium c. Internal dental epithelium d. Stellate reticulum 101 / 254 101) Which amongst the following drugs are capable of inducing gingivitis either directly or systemically? a. Dilantin b. Ampicillin c. Acyclovir d. Diclofenac 102 / 254 102) This space is one of the most commonly involved of all facial spaces? a. Submental b. Submandibular c. Sublingual d. Buccal 103 / 254 103) Which types of bacteria predominate in the organic matrix ofcalculus? a. Gram-positive bacilli b. Gram-negative bacilli c. Gram-positive filamentous 104 / 254 104) 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. Radicular cyst b. Odontogenic keratocyst c. Calcifying odontogenic cyst d. Dentigerous cyst 105 / 254 105) A lateral periodontal cyst must be distinguished radiologically from which other odontogenic cyst? a. Eruption cyst b. Collateral keratocyst c. Epstein’s pearls d. Lateral dentigerous cyst 106 / 254 106) Condensing osteitis is another name for? a. Chronic suppurative osteomyelitis b. Chronic focal sclerosing osteomyelitis c. Chronic diffuse sclerosing osteomyelitis d. Garre’s osteomyelitis 107 / 254 107) Which one of following odontogenic cysts is not usually associated with an unerupted tooth? a. Eruption cyst b. Gingival cyst of adults c. Calcifying odontogenic cyst d. Dentigerous cyst 108 / 254 108) The etiology of which of the following gingival enlargements is still unknown? a. Scurvy b. Plasma cell gingivitis c. Fibromatosis gingivae d. Fibrous epulis 109 / 254 109) Microdontia is seen most commonly affecting:? a. Mandibular second incisor b. Mandibular second premolar c. Maxillary lateral incisor d. Mandibular first molar 110 / 254 110) The appearance of normal thickness enamel with extremely thin dentin and abnormally large pulp chamber is indicative of? a. Dentin dysplasia Type II b. Dentinogenesis Type III c. Dentinogenesis imperfecta Type I d. Amelogenesis imperfecta 111 / 254 111) Pregnancy gingivitis is essentially a? a. Fibrous epulis b. Pyogenic granuloma c. Plasma cell gingivitis d. Peripheral ossifying fibroma 112 / 254 112) Select a false statement regarding calcifying odontogenic cyst from below given statements? a. Cyst lining appears ameloblastomatous b. It is seen mostly in the anterior maxilla and mandible c. Usually associated with an impacted/unerupted tooth d. Numerous ghost cells are seen in connective tissue wall 113 / 254 113) Microabscess formation within inflamed pulp is characteristicOf? a. Focal reversible pulpitis b. Pulp hyperemia c. Chronic pulpitis d. Acute pulpitis 114 / 254 114) Which amongst the following correctly depicts the stages in formation of calculus? a. Pellicle → Bacterial colonization → Plaque formation and mineralization. b. Bacterial colonization → Degradation of carbohydrates → Enamel dissolution c. Pellicle → Bacterial colonization → Degradation of carbohydrates. d. Pellicle → Plaque maturation → Bacterial colonization → Calculus 115 / 254 115) Taurodontism is characterized by:? a. Rootless teeth with thin shell of enamel b. Elongated wide pulp canals and short roots c. Obliterated pulp chambers with secondary dentine deposition d. Hypercemenosis 116 / 254 116) One of the early microscopic signs of advancement of inflammatory process into the periodontium is? a. Ulceration of crevicular epithelium b. Infiltration of connective tissue with plasma cells c. Appearance of osteoclasts on alveolar crest d. Appearance of osteoblasts on alveolar crest 117 / 254 117) The emergency treatment for painless necrotic pulp is? a. None b. Root canal treatment c. Drainage through canals d. Extraction 118 / 254 118) Most common missing tooth in the permanent dentition is:? a. Mandibulary second premolar b. Maxillary canine c. Mandibulary first molar d. Maxillary first molar 119 / 254 119) Which amongst the following is not an intracranial complication of dental infections? a. Brain abscess b. Cavernous sinus thrombosis c. Maxillary sinusitis d. Leptomeningitis 120 / 254 120) During the course of gingivitis if bony changes become evident on a radiograph, the condition is then referred to as? a. Acute necrotizing ulcerative gingivitis b. Periodontitis c. Desquamative gingivitis d. Plasma cell gingivitis 121 / 254 121) An eruption cyst is a soft tissue analogue of? a. Dentigerous cyst b. Odontogenic keratocyst c. Radicular cyst d. Gingival cyst of newborn 122 / 254 122) 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 focal sclerosing osteomyelitis d. Chronic diffuse sclerosing osteomyelitis 123 / 254 123) Dilated odontome is a synonym of? a. Dens evaginatus b. Macrodontia c. Talon cusp d. Dens invaginatus 124 / 254 124) Nursing bottle caries is a type of _______ caries? a. Recurrent b. Arrested c. Rampant d. Acute 125 / 254 125) A pseudopocket is? a. Pocket limited to gingiva b. Pocket with base extending past cementoenamel junction c. Pocket with base extending past the crest of alveolar bone d. Periodontal pocket with furcation involvement 126 / 254 126) Lack of development of six or more teeth is denoted by the term? a. Oligodontia b. Anodontia c. Hypodontia d. Partial anodontia 127 / 254 127) Pterygomandibular space infection arises as a result of extension of infection in ________ region.? a. Maxillary tuberosity b. Mandibular canine c. Mandibular 2nd molar d. Mandibular 3rd molar 128 / 254 128) All of the following statements except one are true regarding chronic periodontitis? a. Teeth become mobile b. Patients may complain bleeding gums and hyper-sensitivity around necks of their teeth c. The epithelial attachment begins to migrate cervically d. It begins as marginal gingivitis 129 / 254 129) 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. Seen primarily in mandibular molar—Ascending ramus region d. Epithelial lining is keratinized 130 / 254 130) An infrabony pocket is a pocket with bone on its ________ wall.? a. Lingual b. Lateral c. Apical d. Buccal 131 / 254 131) Ludwig’s angina is diagnosed as such only when submandibular, submental and ______ spaces are involved together.? a. Submasseteric b. Lateral pharyngeal c. Buccal d. Sublingual 132 / 254 132) Acute dental caries occurs most frequently in children and young adults because? a. The apex of root of teeth are not formed completely b. Dentinal tubules are narrower in diameter c. Dentinal tubules are larger, open and show no sclerosis d. Dentinal tubules are scleroses in the teeth of young people 133 / 254 133) Bohn’s nodules are:? a. Cysts of gingiva in growing children b. Warts on the tongue c. Cysts associated with soft palate d. Cystic swelling in neonates 134 / 254 134) What DOES NOT prevent the calculus formation “build up”? a. Tooth shape b. Mastication c. Tooth inclination and crowding d. Oral flora e. Salivary flow 135 / 254 135) Gorlin cyst is more commonly referred to as? a. Calcifying odontogenic cyst b. Odontogenic keratocyst c. Lateral periodontal cyst d. Glandular odontogenic cyst 136 / 254 136) The submaxillary or submandibular space is bounded laterally by? a. Carotid fascia b. Mylohyoid muscle c. Omohyoid d. Skin and superficial fascia 137 / 254 137) The lesion that is least likely to produce any noticeable signs or Symptoms is called.? a. Ludwig angina b. Radicular cyst c. Acute pulpitis d. Periapical abscess 138 / 254 138) In enamel caries, the advancing front of the lesion is called? a. Translucent zone b. Body of lesion c. Dark zone d. Surface zone 139 / 254 139) The base of invagination of crown/root in dens invaginates contains? a. Dystrophic dentin b. Dystrophic cementum c. Dystrophic enamel d. Necrotic pulp tissue 140 / 254 140) The tooth that is most susceptible to dental caries is? a. Maxillary 2nd premolars b. Mandibular 1st molars c. Maxillary canines d. Mandibular 2nd molars 141 / 254 141) A primordial cyst is now believed to represent? a. Lateral periodontal cyst b. Botryoid odontogenic cyst c. Odontogenic keratocyst d. Calcifying odontogenic cyst 142 / 254 142) _________ is least likely to produce any noticeable signs or symptoms.? a. Periapical abscess b. Ludwig angina c. Acute pulpitis d. Radicular cyst 143 / 254 143) The most appropriate emergency management of a mature permanent tooth with acute irreversible pulpitis is? a. pulpotomy b. incision and drainage c. pulpectomy d. trephination e. apical surgery 144 / 254 144) Absence of caries in _______ teeth helps to distinguish nursing bottle caries from rampant caries? a. Mandibular canines b. Mandibular incisors c. Maxillary canines d. Maxillary incisors 145 / 254 145) Cholesterol clefts observed in periapical granulomas are derived From? a. Breakdown of epithelial cells b. Breakdown of adipose cells c. Breakdown of cholesterol d. Breakdown of RBCs 146 / 254 146) What term is applied to a radiolucent lesion within the alveolar ridge at the site of a previous tooth extraction? a. Periapical abscess b. Residual cyst c. Lateral periodontal cyst d. Lateral radicular cyst 147 / 254 147) A common odontogenic tumor, odontoma is most commonly associated with? a. Radicular cyst b. Odontogenic keratocyst c. Dentigerous cyst d. Calcifying odontogenic cyst 148 / 254 148) A median palatal cyst arises from? a. Cystic degeneration of remnants of nasopalatine duct b. Epithelium entrapped along the line of fusion of palatalprocesses of maxilla c. Cystic degeneration of rests of dental lamina d. Cystic degeneration of epithelial rests of Malassezia 149 / 254 149) According to miller, which of these acids was held responsible for producing the lesions of dental caries, according to Miller? a. Picric acid b. Citric acid c. Ascorbic acid d. Lactic acid 150 / 254 150) The tooth most commonly involved by dentigerous cyst is? a. Mandibular 3rd molar b. Maxillary canine c. Maxillary 3rd molar d. Mandibular 2nd premolar 151 / 254 151) All of the following except _______ are common radiological features associated with a periapical granuloma.? a. Root resorption of involved tooth b. Well-defined radiopacity c. Well-defined radiolucency with sclerotic borders d. Thickening of PDL around root apex 152 / 254 152) Which one of the following is not a radiographic variety of dentigerous cyst? a. Lateral b. Circumferential c. Collateral d. Central 153 / 254 153) Root resorption is commonly seen in? a. Cellulitis b. Periapical abscess c. Radicular cyst d. Garre’s osteomyelitis 154 / 254 154) All of the below given factors are responsible for causing dental caries except? a. Microorganisms b. Dental plaque c. Diet d. Temperature 155 / 254 155) Gardner syndrome does not include”? a. Impacted permanent teeth b. Osteomas c. OsteosarcomaDentinogenesis imperfect is: d. Epidermoid cysts 156 / 254 156) Maximum accumulation of calculus can be seen in which of the following regions? a. Palatal surfaces of maxillary posterior teeth b. Palatal surfaces of maxillary anterior teeth c. Buccal surfaces of maxillary posterior teeth d. Buccal surfaces of mandibular anterior teeth 157 / 254 157) Turner’s tooth is seen in:? a. Enamel hypoplasia due to hypocalcemia b. Enamel hypoplasia due to congenital syphilis c. Enamel hypoplasia due to birth injuries d. Enamel hypoplasia due to local infection or local trauma 158 / 254 158) From the properties given below identify which one does render carbohydrates cariogenic? a. Rapid clearance from oral cavity b. Frequent ingestion of carbohydrates c. Simple carbohydrates d. Stickiness of carbohydrates 159 / 254 159) Which product of the streptococci is responsible for adherence of the dental plaque to the smooth surfaces of teeth? a. Glycosaminoglycan b. Proteoglycan c. Glycoprotein d. Glucan 160 / 254 160) What are the commonest congenitally missing teeth? a. 35, 45 b. 12, 22 c. 15, 25 d. 33, 43 161 / 254 161) The MOST cariogenic sugar is? a. Sucrose b. Amylase c. Glucose d. Lactose 162 / 254 162) Palmar and plantar hyperkeratosis, generalized hyperhidrosis, peculiar dirty colored skin along with aggressive periodontitis is referred to as? a. Papillon—Lefevre syndrome b. Scurvy c. Frey’s syndrome d. Desquamative gingivitis 163 / 254 163) All of the following occur as a sequel to pulpitis Except? a. Periapical abscess b. Lateral periodontal cyst c. Apical periodontal cyst d. Periapical granuloma 164 / 254 164) About geographic tongue, all are true except:? a. Lesions may be bilaterally symmetrical on tongue b. No treatment is required c. Is a precancerous condition d. May be related to emotional stress 165 / 254 165) Which of the following is type of nursing bottle caries ? a. Recurrent b. Rampant c. Acute d. Arrested 166 / 254 166) Which amongst the following cysts has a predilection for occurrence in mandibular canine-premolar region? a. Dentigerous cyst b. Gingival cyst of newborn c. Gingival cyst of adults d. Radicular cyst 167 / 254 167) Transillumination is used to**? a. To find intrinsic tooth coloration b. Pulp-stones c. Calculus d. To detect caries e. Hemorrhagic pulp 168 / 254 168) What contra indicate pulp capping? a. When anterior tooth is vital and immature with wide open apices b. Accidental exposure on vital young molars c. When roots are greatly curved and tortuous d. When inflammation of radicular pulp is already present e. None of the above 169 / 254 169) The swelling in case of Ludwig’s angina, usually occurs in? a. Floor of mouth b. Larynx c. Maxillary tuberosity d. Tongue 170 / 254 170) All, except ________, are believed to be causative factors of desquamative gingivitis.? a. Hormonal influences b. Dermatoses c. Idiopathic d. Decreased resistance to infections 171 / 254 171) Most accepted explanation for anachoretic pulpitis is? a. Lack of collateral blood supply b. Presence of large number of dilated capillaries c. Increased capillary permeability d. Increased vascular pressure 172 / 254 172) True generalized microdontia is chacaterised by:? a. Small teeth with large jaws b. Small teeth with small jaws c. Smaller teeth than the normal d. Large teeth with small jaws 173 / 254 173) Using fluoride in the root surface caries is to protect? a. Enamel b. Dentine and cementum c. All of the above d. Cuticle 174 / 254 174) Which antibiotic administered in childhood may result in tooth discolouration? a. Tetracycline b. All of the above c. Penicillin d. Streptomycin 175 / 254 175) Buccal space is bounded posteriorly by ______ muscle.? a. Zygomaticus minor b. Anterior edge of masseter c. Zygomaticus major d. Lateral pterygoid 176 / 254 176) What is the most frequent cause of acute osteomyelitis of jaw? a. Paget disease b. Dental infection c. Malnutrition d. Trauma 177 / 254 177) The mechanism of cariostatic action of chlorhexidine is? a. Inhibition of carbohydrate degradation b. Absorption into enamel crystals and salivary mucins c. Absorption into enamel crystals d. Inhibition of microorganisms 178 / 254 178) The most accepted theory on mechanism of action of ingested fluoride is? a. Prevention of carbohydrate degradation b. Inhibition of microorganisms c. Incorporation o