1. Infection of dangerous area of face leads toCortical venous thrombosisCavernous sinus thrombosisLateral sinus thrombosisBrain abscess 2. According to Cron, the tooth starts erupting afterOne half of the root is formedOne fourth of the root is formedThe entire root is formedThree fourths of the root formation is complete 3. hydroxylation of phenylalanine to tyrosine requirestetrahydrobiopterinTetrahydrofolateS-adenosyl methioninePyridoxal phosphate 4. EB virus is associated with which carcinoma:Carcinoma of bladderChronic lymphocytic leukemiaCarcinoma of larynxNasopharyngeal carcinoma 5. All of the following statements concerning teratology or teratogens are true, except:Teratology is the study of developmental anomaliesTeratogens are chemical, physical, and biologic agents that cause developmental anomaliesThe mechanism of teratogenesis is not specific for each teratogenSusceptibility to teratogens is variable 6. Cabbage-like odour is seen inHartnup diseaseAlkaptonuriaTyrosinemiaPhenylketonuria 7. JAK-STAT kinase receptors is associated withIP3-DAGIon channelsNuclear transcriptionincreased c AMP 8. Most common cause of seizures in a patient of AIDS isProgressive multifocal leucoencephalopathyToxoplasmosisCryptococcal meningitisCNS lymphoma 9. You are instrumenting a canal with a size 30, 25 mm k-type file. What does each of the sizes denote, respectively?The diameter of the tip of the file and the taper of the fileThe diameter of the tip of the file and the length of the fileThe taper of the file and the length of the fileThe length of the file and the diameter of the tip of the file 10. Pyruvate kinase is inhibited byInsulinATPFructose-1,6 biphosphateAll of the above 11. Mother of a child is worried about green stains on the recently erupted upper anterior teeth of her child. The stains are most probably due to:Chromogenic bacteriaNeonatal lineCalculusMaterial alba 12. In the maxilla the molar tooth germs develop, with their occlusal surfaces facing firstMesiallyLinguallyDistallyBuccally 13. Wernicke's area is associated with:Language interpretationAssociation of tasksThoughtLong term memory 14. The dentogingival unit is composed ofPDL fibers and gingival fibersNone of the aboveJunctional epithelium and PDL fibersJunctional epithelium and gingival fibers 15. A lady with an Infant reported to clinic with the complaint of white teeth like structure, at the level of gingiva in mandibular anterior region. What should dentist do?Reassure the parents as root will develop laterExtract the structure under GAExtract it under laSelective grinding & let it remain 16. Statins are used for cholesterol reduction, It antagonises HMG COA reductase. What kind of inhibition is seenFunctionalNon specificNon competitiveCompetitive 17. nickel is added to wrought gold alloys asstrengthenerbalance of colorage hardnerscavenger 18. A light bluish dome shaped lesion on the inside lip of a 2 yr old child is mostlyMelanomaHematomaHemangiomaMucocele 19. True about carbamoyl phosphate synthaseCatalyses condensation reactionCytosolic enzymeAll are trueMitochondrial enzyme 20. When making a diagnosis as to the vitality of a tooth, you employ the electric pulp tester. You obtain a measurement that suggests the tooth is necrotic. With this information alone, you can determine that:The tooth has an inflamed PDL.Further testing is necessary to make a definitive diagnosis.The tooth is necrotic.The tooth needs root canal therapy. 21. At what age the calcification of deciduous teeth startsSecond month of fetal lifeFourth month of fetal lifeSeventh month of fetal lifeSixth month of fetal life 22. A major difference between total-etch and selfetching primer dentin bonding systems include all of the following except _____.The time necessary to apply the material(s)The bond strengths to enamelThe amount of smear layer removedThe need for wet bonding 23. Most of the drug resistance occurs due toTransformationConjugationMutationTransduction 24. The major objectives of access preparation include all of the following except which one?The conservation of tooth structure.The confirmation of clinical diagnosis.The attainment of direct, straight-line access to the apical portion of the root.The attainment of direct, straight-line access to canal orifices. 25. Virus is usually cultured in:Rogosa blood agarNon embryonated hen eggsSabourouds mediumEmbryonated hen eggs 26. Which of these amino acids does not enter the krebs cycle by forming Acetyl-CoA via pyruvateAlanineTyrosineGlycineHydroxyproline 27. Which of the following soft tissues of the oro facial region mature first:LipsAll soft tissues mature simultaneouslyTip of tonguePosterior 1/3rd of tongue 28. Beta subunit of insulin receptor binds toTyrosine kinaseGuanylyl cyclaseadenylyl cyclaseIP3-DAG 29. A patient walks into your office for an emergency visit. He asks the receptionist for a cold glass of water and seems to be tilting his head sideways as to hold the water on one side of his mouth. Immediately, you suspect which reason for his visit?reversible pulpitispulp necrosisasymptomatic apical periodontitissymptomatic irreversible pulpitis 30. True about charge in amino acidAll of the aboveCarboxyl group can form positive chargeAmino group can form negative chargeNeutral at isoelectric pH 31. which of the following is the least radiosensitive tissuesmuscle cells,nerve cells,bone cellsconnective tissue cell,endothelial cell,muscle cellWBC,bone cells,epithelial cellsRBC,muscle cell,nerve cell 32. During inferior alveolar nerve block, the needle is located in:Massetric spaceParotid spacePterygomandibular spaceTemporal space 33. When permanent maxillary lateral incisors are congenitally missing, the permanent canine may often erupt:Distal to the deciduous canineBetween the two CIsMesial to the deciduous canineMay be congenitally missing 34. In Steiner's analysis, SNA is 82 degrees. This indicates:Maxillary protrusionMandibular protrusionMaxillary retrusionNormal maxillary base 35. In an edentulous maxilla, the direction of resorption of the alveolar ridge isupward only.uniform in all directions.upward and palatally.upward and facially. 36. Modes of attachment of calculus to the tooth surface include all of the following, EXCEPTMechanical locking into surface irregularitiesClose adaptation to unaltered cementumAttachment by means of an inorganic pelliclePenetration of calculus bacteria into cementum 37. Osteotomes differ from chisels In that they areNon bevelledSharpSlightly curvedBi-bevelled 38. A facebow is used to record therelationship of the maxilla to the horizontal hinge axis.incisal guidance.horizontal condylar inclination.vertical dimension of occlusion. 39. Morphine a powerful opioid analgesic drug shuld be avoided in all of the following conditions exceptPancreatitisConstipationBronchial asthmaLeft ventricular failure 40. Kennedy applegate classification of partially edentulous arch does not allow consideration ofVisualizationLength of the edentulous spacesUniversal acceptanceDifferentiation between tooth borne and tooth tissue supported 41. A patient complaints of multiple episodes of blood stained vomits .On examination, he has a saddle nose and typical strawberry gingivitis. what is the probable diagnosis?scabieswegener's granulomatosispoisoning by lead or other heavy metal poisoningHutchinson syndrome 42. Killer and Helper cells are part of:MacrophageT cellsB cellsMonocytes 43. Exclusive of third molars, the permanent dentition is usually completely erupted by the age of12 to 14 years.9 to 11 years.18 to 21 years.15 to 17 years. 44. A 6 year old patient reports with greenish blue swelling distal to deciduous 2nd molar. Treatment would be:Bone graftSurgical excision of flapInjecting proteolytic solution in the areaNo treatment, only observation 45. Necrotizing ulcerative gingivitis (NUG) and acute herpetic gingivostomatitis can be differentiated clinically by (the)temperature of the patient.pain.lymphadenopathy.location of the lesions. 46. Which index correlates the maturational status of a tooth to its developmental stage:Root transparencyGustaffsonDemerijian IndexSchour and Massler 47. Which of the following movements are performed by a non-working condyleStraight forwardDownwards Forwards LateralDownwards Forwards MedialDownwards Backwards Medial 48. Which of the following is not true when fixing the matrix band for filling a Class 2 cavity with amalgam? The matrix band shouldSupport the marginal ridge of the restoration during amalgam packingFit the cervical margin of the proximal box looselyBe higher than the occlusal surface of the toothProvide a physiological contour for the proximal surface of the restoration 49. Recently two methods of cPAP: conventional and bubble cPAP were compared. In the conventional method, 90 out of 160 showed extubation failure while 40 out of 160 showed extubation failure in the bubble method. Which test would be the best to compare the statistical significance between the rates of extubation failure in the two testsStudent t testPaired t testChi square testANOVA 50. ehler danlos syndrome isautosomal dominantautosomal recessivesex linked recessivesex linked dominant 51. All of the following are morphological neurological complication of measles exceptTransverse myelitisSSPEOptic neuritisEncephalitis 52. Which one of the following is a good index of the severity of an acute disease?Standardized mortality ratio.Cause specific death rate.Five year survival.Case fatality rate. 53. Angulation of needle during suturing as the needle enters the tissue:90 degrees45 degrees135 degreesAs close to 0 degree as possible 54. Maxillary cast is attached to articulator by:Changing incisal pinFunctional recordUsing facebowClinical record 55. Which of the following is not a technique for protein precipitationIsoelectric point methodtitration with reducing sugarTrichloroacetic acidHeat precipitation 56. Which of the following has a non odontogenic originOKCDentigerous cystRadicular cystSebaceous cyst 57. the correctly placed posterior palatal seal createspartial vaccum beneath the maxillary denturevaccum beneath the maxillary denturevaccum in posterior part of palatea close adaptation of maxillary denture at tuberosity 58. The picture below shows which of the following combination of orthognathic surgeriesBilateral sagittal osteotomy and genioplastyLe Fort III osteotomy and bilateral sagittal osteotomyBilateral sagittal osteotomy and subapical osteotomyLe Fort I osteotomy and bilateral sagittal osteotomy 59. True regarding Non accidental traumatic fractures all except:Costochondral joint fractureSternal fractureMetaphyseal corner fractureParietal fracture 60. In an Angle Class I occlusion, which cusp of which permanent tooth moves between the mesiolingual and distolingual cusps of the mandibular second molar in a working side movement?Mesiolingual cusp of the maxillary first molar.Distolingual cusp of the maxillary first molar.Mesiolingual cusp of the maxillary second molar.Distolingual cusp of the maxillary second molar. 61. Aminoglycosides cause all of the following exceptNephrotoxicityneuromuscular blockadeOtotoxicityCardiotoxicity 62. Which hormone increases the gingival vascular permeability and increases chances of gingival disease caused by infective micro-organismsEstrogenHuman chorionic gonadotropinProgestoeroneOxytocin 63. Least diffusible ion among followingK +Na +Cl -urea 64. Snow man appearance or figure of 8 appearance is seen inTransposition of great arteriesTetralogy of fallotTricuspid atresiaTotal anomalous pulmonary venous connection 65. Toxoids areantigenic and toxicnon-antigenic and non-toxicnon-antigenic and toxicantigenic and non-toxic 66. Leeway space is due tononespace differential between deciduous incisors and their succedaneous permanent teethdifference between deciduous and permanent maxillary caninesspace differential between deciduous canine and molar and their succadaneous permanent teeth 67. Tanaka Johnson analysis uses width of which teeth to estimate the width of maxillary canine and premolars:Mandibular incisorsMaxillary molarsMaxillary incisorsMandibular molars 68. The term "balanced anaesthesia" has been given byFischerMortanSimpsonlundy 69. Which of the following nutrients are not included in Total Parental NutritionFibersProteinsLipidsCarbohydrates 70. Proper radiographic infection control includes all of the following except one. Which one is the exception?Sterilizing film packetsWearing gloves while making radiographsDisinfecting x-ray machine surfaceCovering working surfaces with barriers 71. A previously well-controlled periodontal patient now demonstrates the presence of bleeding in 60% of sites and significantly increased probing depths. The patient has most likely developedosteoporosis.diabetes mellitus.hypercalcemia.hyperchromatosis. 72. Widest spectrum aminoglycoside isStreptomycinAmikacinFramycetinNetimicin 73. Stage of surgical anesthesia during ether administration isFailure of circulationRegular respiration to cessation of breathingLoss of consciousnessLoss of consciousness to beginning of regular respiration 74. Cubital tunnel syndrome occurs due to compression of which structure:Median nerveUlnar nerveRadial nerveBranchial artery 75. Which of the following orthognathic surgery is shown in pictureSagittal split osteotomyInferior border modificationLe Fort I advancementLe Fort III advancement 76. Polyglycolic acid suture is:Nonabsorbable natural sutureAbsorbable synthetic sutureAbsorbable natural sutureNonabsorbable synthetic suture 77. The procedure shown in the picture isIlizavrov’s procedureGap arthroplastyChampy’s plateEsmarsh procedure 78. Which projection is best for examining zygomatic arch fractures?Submentovertex projectionReverse Towne projectionWaters projectionLateral cephalometric projection 79. Vertical dimension at rest can be defined asvertical dimension at occlusion minus freeway spaceVertical dimension at occlusion multipied by freeway spaceVertical dimension at Occlusion plus freeway spaceVertical dimension at occlusion plus freeway space 80. Which of these is not a part of ethmoid boneCribriform plate or crista galiAgger nasi cellsUncinate processInferior turbinate 81. Hallucinations are seen after following anaesthesiaFentanylKetamineNitorus oxideThiopentone 82. True about hemorrhageNone of above is correctReactionary hemorrhage occur at the time of surgeryPrimary hemorrhage occur within 24 hr postoperativeSecondary hemorrhage occur 7 to 14 days postoperative 83. 2% solution of copper sulphate followed by sodium bicarbonate application is needed for treatingPhosphorus burnsAcid burnsPhenolic burnsAlkali burns 84. Direction of the enamel rods in the deciduous and permanent teeth isDifferent at cervical thirdSame throughoutDifferent at occlusal and ncisal thirdNone of the above 85. The hypercalcification lines that separate lamellae of cellular cementum from that of acellular cementum are known asPerikymataIncremental linesnone ofThe aboveLines of retzius 86. Which of the following is the best indication for transfer of maternal blood components to an infant:Plasma to prevent ITPPlatelets to prevent NAITRBCs to prevent TA-GVHPlasma to prevent NAIT (Neonatal Alloimmune Idiopathic thrombocytopenia) 87. What type of movement is shown here? RotationTippingTranslationIntrusion 88. The most common pathway of glycolysisEmbden Meyerhof pathwayUrea pathwayEntner Doudoroff pathwayPentose phosphate pathway 89. With incresed age and irritation which form of dentin is laid downRepairative dentinSecondary dentinEburnated dentinSclerotic dentin 90. Which of the following is found in the respiratory zone of the lung?Goblet cellsMucous cellsMain bronchiType I epithelial cells 91. Maximum amount of air that can be inhaled:Tidal capacityDead spaceVital capacityInspiratory reserve volume 92. Medial squint occurs due to lesion of:Occulomotor nerveTrochlear nerveOptic nerveAbducent nerve 93. type of collagen present in hyaline cartilage istype Itype IVtype IItype III 94. The blood in vessels normally doesn't clot because:Thrombin has positive feedback on plasminogenVit K Antagonists are present in plasmaSodium citrate in plasma chelates Ca ionsVascular endothelium is smooth and coated with glycocalyx 95. Which of the following bacteria are most commonly associated with pregnancy associated gingivitis?P. IntermediaB. ForsythusS.oralisP. Gingivalis 96. Which of the following serves as a principal source of carbon for nonessential amino acidsfatswaterureacarbohydrates 97. Which of the following is not true for lidocaineIt is the most cardiotoxic sodium channel blockersMost physicians use IV lignocaine only in patients with ventricular arrhythmiasInhibits both active and inactive Na channelUndergoes extensive first pass metabolism 98. Local anesthetics stop axonal conduction by blocking:Potassium channelsSodium channelsAll of the aboveCalcium channels 99. Most common site of zygomatic arch fracture isposterior to itNo specific locationZT sutureanterior to it 100. Which of the following is the most accurate to measure the height of the floor of the mouth?Using a periodontal probeUsing a straight probeUse of a special trayUse of periodontal probe and a special tray 101. Which of the following is evident on the radiographSialolithSinus mucositisRetianed rootAntrolith 102. Styloglossus action is:Protrusion of tongueRetraction of tongueElevation of tongueDepression of tongue 103. Buprenorphine isPartial agonistPure antagonistPure agonistNone 104. Diameter of adult tooth brush range0.007-0.0150.004-0.0070.006-0.0090.010-0.012 105. In which surveyor,spring mounted horizontal arm is seenNone of the aboveJelenkoNeyWilliams 106. Right 12th nerve damage leads toTongue deviation to left on protrusionTongue deviation to right on protrusionNasal twang to voiceScanning speech defects 107. A Common site for intramuscular injection in adults:Pectoralis majorVastus intermediusGluteus maximusDeltoid 108. dental plaster powder and dental stone powder differ mainly inshelf lifechemical formulaparticle porositysolubility 109. impression material of choice in patients with submucous fibrosis isaddition siliconezinc oxide eugenolcondensation Siliconeplaster of paris 110. Heparin is secreted by:Mast cellT lymphocytesPlateletPlasma cells 111. For a dental hand instrument with a formula of 10-8.5-8, the number 10 refers to _____.The primary cutting edge angle, in centigradesThe width of the blade, in tenths of a millimetreThe blade length, in millimetresThe blade angle, in centigrade 112. RPI clasp in a distal extension cast partial dentureProvides pull type retentionProvides push type retentionIs contraindicatedUsed for buccally tilted molar 113. replacing alanine by which amino acid will increase UV absorption of protein at 280um wavelengthprolineleucineargininetryptophan 114. Distal part of the impacted third molar is covered by ascending ramus. What is the classificationPosition BDistoangular impactionType IClass II 115. Maxillary 1st molar cusp used in Angle classificationDistolingualMesiobuccalDistobuccalMesiolingual 116. When making a diagnosis, the primary goal of your diagnostic tests is to reproduce the chief complaint. You test the suspected tooth for percussion sensitivity and palpation sensitivity. Your positive percussion findings can be interpreted as follows:There is inflammation in the PDL and the surrounding periodontium.There is inflammation in the PDL.The tooth is nonvital and should be treated with root canal therapy.There is a root fracture present. 117. Second gas effect is exerted by which of the following gas when coadministered with halothaneCyclopropaneHeliumNitrous oxideNitrogen 118. a patient sustains an injury to mandible. Which is the best projection for evaluation of the condylar neck and ramus areaSubmentovertexWaterslateral cephReverse towne 119. An ovoid radiolucency found located in the inferior border of posterior mandible region, which contains salivary gland tissue isStafne cystresidual cystCentral giant cell granulomaaneurysmal bone cyst 120. Increasing urine flow rate from 1 mL/min to 10 mL/min will significantly increase the clearance ofpenicillininulincreatinineurea 121. "Classical phenyl ketonuria" is caused by deficiency ofTyrosine hydroxylaseTyrosine transaminasePhenylalanine hydroxylasePhenylalanine transaminase 122. an Angle Class I occlusion, the mesiobuccal cusp of the maxillary first molar occludes withmesiobuccal cusp of the mandibular first molar.mesiobuccal groove of the mandibular first molar.central fossa of the mandibular first molar.mesial marginal ridge of the mandibular first molar. 123. Comprehensive school based dental care for whole country is adopted byNew ZealandSwedenUSAAustralia 124. Most commonly used blade for oral cavity:No.9No. 12No. 15No. 11 125. Diabetic patient with periodontitis have significantly higher level of ______________ in GCFTNFAllPGE2Interleukin-1 126. Which of the following is most likely to decrease in skeletal muscles during exercise?Carbon dioxide concentrationArteriolar resistanceLactic acid concentrationSympathetic nervous activity 127. A divided pulp canal is most likely to occur in theroot of a mandibular canineroot of a maxillary caninelingual root of a maxillary 1st molarroot of a maxillary central incisor 128. Insulin does not facilitate glucose uptake in the following exceptRBCLiverHeartKidney 129. All are of adult size at birth exceptMaxillary antrumTympanic CavityEar osscicleMastoid antrum 130. Sickle cell anaemia is caused due to:Substitution of glutamic acid by valineSubstitution of valine by glutamic acidSubstitution of ketoglutarate by valineSubstitution of valine by ketoglutarate 131. an epidemiological index with a true biological gradient isPMA index-Schour and maselerperiodontal index-Ramfjordperiodontal index-russelsimplified oral hygiene index-green and vermilion 132. Caisson diseaseTumor embolismGas embolismFat embolismAmniotic fluid embolism 133. nikolsky sign is not seen incicatricial PemphigoidTENbullous Pemphigoidscalded skin syndrome 134. Best test to evaluate syphilis after treatment isTPHATPAFTA-ABSVDRL 135. Primary teeth are lighter than permanent teeth because Thin dentin in primary teethLighter color of enamelDifference in crystalline structure makes refractive index differentBecause of contrast with the adjacent tissue 136. Which of the following test is used to compare the chromosomes between normal and neoplastic cells or for detecting genetic transfer of disease:Southern blottingWestern BlottingComparative genomic hybridizationPCR 137. Pleoniorphic' shape of bacteria signifies:Non specific shapeLong rods shaped bacteriaDumb-bell shaped bacteriaIrregular clusters of bacteria 138. In the clotting process, as the hemostatic plug develops, fibrin polymerizes into monomeric threads that are held together by noncovalent bonds. Which clotting protein increases the strength of the clot by cross-linking the newly formed fibrin threads?PlasminogenThrombinFactor XIIIHigh molecular weight kininogen (HMWK) 139. Young's modulus is defined as:Area under the stress strain curve till point of fractureLimit where a material shows plastic defonnationStress/strain below elastic limitStress/strain above elastic limit 140. Which of the following is evident on the radiographCoronoid proessConchaeMedial pterygoid plateHamular process 141. Co-factor for phosphofructokinase isZnMnFeMg 142. With advancing age pattern of bone resorption in mandible becomes:Centrifugal anteriorly, centripetal posteriorlyDepends upon stageCentripetalCentrifugal 143. Type 1 muscle fibres areAnerobicGlycolyticlargeRed 144. Identify the salivary gland tumor which has marked tendency to spread through perineural spacesPleomorphic adenomaAdenoid cystic carcinomaMucoepidermoid carcinomaWarthins tumor 145. In which part of oral cavity mucous menbrane is the thinnestLabial mucosaBuccal mucosaFloor of mouthSoft palate 146. Candida albicans causes all of the following exceptMycetomaEndocarditisMeningitisOral thrush 147. the heat treatment of soaking the alloy at a high temp to produce a solid solution followed by quenching is known asage hardeningsolution heat treatmentstrain hardening heat treatmentliquid heat treatment 148. After spleenectomy patient becomes more prone toNon-encapsulatedGram +ve & anaerobicEncapsulated organismsGram -ve & anaerobic 149. the most important bufer system in the saliva isphosphate buffersbicarbonate-carbonic acid buffersprotein buffersall of the above 150. Pentameric structure:IgAIgMIgGIgD 151. Receptor for inverse Stretch reflexGolgi tendon organExtrafusal fibersIntrafusal fibersMuscle spindle 152. Most common presentation of extrapulmonary TBPeritoneal TBTubercular meningitisTubercular lymphadenitisPericardial TB 153. Excessive bleeding occurring during oral surgery can be minimized by maintaining the patient atHead downSupineHead upProne 154. A patient with hereditary fructose intolerance is deficient in which of the following enzymesAll of the aboveTriokinaeAldolaseFructokinase 155. If gold content of the alloy decreases:Both strength and ductility increasesBoth strength and ductility decreasesStrength increases, ductility decreasesStrength decreases, ductility increases 156. Following is added to zinc polycarboxylate to improve its manageability:Magnesium oxideStrontium fluorideStannous fluorideAluminium oxide 157. Most common form of brain herniation isTranstentorial herniationTransfacial herniationTranscalvarial herniationForaminal herniation 158. Which of the following muscles adducts the vocal cords?Cricothyroid.Posterior cricoarytenoid.Vocalis.Lateral cricoarytenoid. 159. Methemoglobinemia true is:Oxidation of cytochrome oxidaseAlteration of globin chainsIncreased oxygen binding capacityIron is oxidized 160. Neonatal teeth arePresent at birthErupt within 30 days of birthPresent within 45 days of birthPresent 180 days after birth 161. A Path finder survey for oral health needs to be done at 12 sites for 4 index age groups at each site. What should be the sample size for the survey15003001200400 162. The propylene glycol in IV valium can cause:phlebitisa unilateral facial paralysiscellulitissyncope 163. Immunity that is conferred to the foetus by transfer of IgG and IgA antibodies is called asActive acquired immunityPassive natural immunityNatural active immunityPassive acquired Immunity 164. In an ideal Class I occlusion, the cusp of which mandibular tooth is in contact with the central fossa of the maxillary second molar?Mesiobuccal cusp of the first molar.Distobuccal cusp of the first molar.Distobuccal cusp of the second molar.Mesiobuccal cusp of the second molar. 165. Which of the following statements is true regarding the choice between doing a composite or amalgam restoration?The amalgam is more difficult and technique sensitive.Only amalgam should be used for Class II restorations.The composite generally uses a more conservative tooth/cavity preparation.Establishing restored proximal contacts is easier with composite. 166. What role do the lungs play in the pathogenesis of systemic hypertension?The type II pneumocytes contain aldosteroneThe alveolar capillaries contain angiotensin-converting enzyme (ACE)The alveolar capillaries contain antidiuretic hormone (ADH)The alveolar capillaries contain aldosterone 167. In an infant, the gum pad is separated from palate by:Dental grooveTransverse grooveGingival grooveLateral sulcus 168. All of the following statements are true except:In general, the crowns of primary teeth are more bulbous and constricted than the permanent counterpartThe pulp cavities are proportionately larger in the primary teethThe crown surfaces of all primary teeth are much smoother than the permanent teethThe primary teeth are darker in color than the permanent teeth 169. Which one of the following skeletal muscle relaxants causes pain on injectionpancuroniumVecuroniumRocuroniumSuccinyl choline 170. ____ is degraded by Streptococcus mutans into ____ and ___ , thereby causing caries initiation and progression.sucrose, glucans, lactic acidsucrose, glucose, acetic acidglucose, glucans, lactic acidglucose, sucrose, acetic acid 171. which of the following is required for conversion of prothombin to thrombinfibrinthromboplastinstable factorlabile factor 172. Dental plaque containsBacteria and bacterial productsSalivary products and food particlesBacteria and food productspellicle and food 173. In the drawing below, which area stabilizes the clamp to the tooth.ACDB 174. Not a part of RED complex:P denticolaP forsythusActinomycetemcomitansP gingivalis 175. Actinomycosis is sensitive toLodox-uridineNystatinPenicillinStreptomycin 176. The auriculotemporal nerve encircles which of the following vessels?Deep auricular artery.Superficial temporal artery.Maxillary artery.Middle meningeal artery. 177. In cardio pulmonary resuscitation chest compressions are done:On the upper part of sternumOn the left side of the chestOn the xiphisterumOn the middle of the Lower part of the sternum 178. Which vitamin is essential for metabolism of sulphur containing amino acidsThiamineFolic acidVitamin CBiotin 179. Which of the following lung volumes or capacities cannot be measured directly using simple spirometry?Expiratory reserve volumeFunctional residual capacityTidal volumeInspiratory reserve volume 180. Appliance shown in the picture is used for breaking which habitThumb SuckingNail BitingMouth BreathingLip Biting 181. The type of bone present in the labial anterior teeth isCancellousCorticalOsteophyticExophytic 182. Cardiac arrythmias are most commonly seen during administration ofNitrous oxideHalothaneThiopentalEther 183. Lactate is formed in all exceptLensBrainRBCsTestis 184. Maxillary sinus is seen inSubmento vertexPA viewReverse Towne projectionWaters view 185. Rancid butter smelling of urine is seen inAlkaptonuriaHartnup diseasePhenylketonuriaTyrosinemia 186. Alkaptonuria an inherited metabolic disorder is due to defiiciency ofTyrosine transaminaseCystathionasePhenylalanine hydroxylaseHomogentisate oxidase 187. Not an extrinsic membrane of larynxCricotrachealThyrohyoidHypoepigloticCricothyroid 188. Oronasal intubation is not indicated in:Le Fort I fracturesLe Fort II and III fracturesParietal bone fracturesMandibular fractures 189. Which of the following statement(s) is(are) true regarding treatment of a tooth presenting with a sinus tract?The sinus tract should heal in 2 to 4 weeks after conventional root canal therapy.Antibiotics are not needed.Treat with conventional root canal therapy.All of the above choices are true. 190. All of the following statements about pain are correct exceptDysphoria is associated with 'k' receptorsNSAIDS benefit by preventing prostaglandin synthesisAnalgesia is associated with 'u' and 'k' receptorsNaloxane is a non competitive antagonist and irreversibly opposes the opioids 191. Space for eruption of permanent mandibular molars is created byApposition at the anterior border of ramusResorption at the anterior border of the ramusResorption at the posterior border of ramusApposition of the alveolar process 192. Diamonds remove tooth structure more efficiently than steel burs, but they leave undesirably rough surfaces and irregular cavosurface finish lines.The first statement is false, but the second is correctThe first statement is correct, but the second is falseBoth the statements are correctBoth the statements are false 193. NSAID given in once daily dose isNaproxenParacetamolketorolacPiroxicam 194. The most common pathogens responsible for nosocomial pneumonias in the ICU areGram positive organisms.Mycoplasma.Virus infections.Gram negative organisms. 195. While obturation selection of master cone is based on:The cone should have a wiggly appearance and reach within 1mm of radiographic apexThe cone must fit well in the canal and be at the radiographic apexThe cone must bind loosely in the canal and reach within 1 mm of the radiographic apexThe cone must fit well in the apical third of the canal and be within 1mm of the radiographic apex 196. A patient has recurrent attacks of asthma that occur most frequently after aspirin administration. Which of the following is the pathogenetic mechanism in this form of asthma?Direct release of bronchoconstrictor mediatorsType I hypersensitivity reactionInhibition of cyclooxygenase pathwayEnhanced sensitivity to vagal stimulation 197. Sulphonamides act byNone of theseAllosteric inhibitionCompetitive inhibitionNon competitive inhibition 198. Krebs cycle does not occur inMuscleAll of the aboveHeartRBC 199. Antibody to HSV will begin to appearOnly after one yearIn a week and reach a peak in 3 weeksAntibodies are present In recurrent and chronic apthous stomatitis No antibodies are present in primary HSV 200. The number of branches of the internal carotid artery in neck is /are :-OneNoneTwoFour 201. During a surgical procedure, cranial nerves IX and X are accidentally cut bilaterally. What would be the immediate change in the patient's hemodynamic condition?Bradycardia with hypertensionBradycardia with hypotensionTachycardia with hypertensionSinus arrhythmia with hypotension 202. Microorganisms associated with periodontal health are all of the following, EXCEPT:S. SanguisviscosusP. IntermediaP. gingivalis 203. Which is the earliest symptom of ParkinsonismTremorsRigidityChoreaBradykinesia 204. Nerve supply to musculature of tongue is:VagusGlossopharyngealFacialHypoglossal 205. A general anesthetic should not be used for an elective surgical procedure in a patient with less than:19 grams Hb8 gams Hb12 grams Hb10 grams Hb 206. which of the following is used to detect the chromosomal differences between neoplastic cells and their normal counterpartsSpectral karyotypingwestern blottingComparative genomic hybridizationPCR 207. Bacterial enzyme which causes inactivation of allergy mediating immunoglobulinPeroxidaseCatalaseHyaluronidaseProtease 208. A patient had come with a painful ulcerated lesion on the lip along with enlarged lymph nodes.He was diagnosed with syphilis.Which stage of syphilis is he inPrimary stageSecondary stageCongenital stageTertiary stage 209. Suture with least adhesion to tissues and high plasticity is:ProlenePolyglycolatePDSNylon 210. Possible etiology of internal resorption:Luxation injuryThe presence of low grade chronic pulpitisFurcation involvementNecrosis of pulp 211. Most common tumour of mandible in India is:AdammitinomaOsteogenic sarcomaOsteoclastomaSquamous cell carcinoma 212. The most common congenitally missing primary tooth is the:Primary maxillary caninePrimary maxillary lateral incisorPrimary mandibular caninePrimary mandibular first molar 213. Which of the following is evident on the radiographLateral luxationExtrusionRoot fractureIntrusion 214. Vertical food Impaction can be due to all exceptPlunger cuspDifference between adjacent tooth marginal ridges and at irregular levelPeriodontal destructionOpen contacts between adjacent tooth 215. A patient has Hemoglobin of 6 gm%. Which of the following should not be administered:Fresh frozen plasmaRandom donor plateletsPacked red cellsWhole blood 216. Antrum of highmore' is nother name ofSphenoid sinusFrontal sinusMaxillary sinusEthmoidal sinus 217. Elevation of glucose by corticosteroids is counteracted by insulin is an exampleCHEMICAL antagonismCompetitive antagonismPhysiological antagonismNoncompetitive antagonism 218. which of the following bacteria do not invade host tissue cellF.NucleatumP.intermediaT.denticolaP.gingivalis 219. Which of the following regions of the nephron is capable of the greatest level of sodium reabsorption?Proximal convoluted tubuleDistal convoluted tubuleCollecting ductThick ascending limb of the loop of Henle 220. Iron is absorbed fromIleumDuodenumstomachJejunum 221. dental impression compound is characterised by having across linkage reaction upon heatingcrystalline atomic structurerelatively low thermal conductivityspecific melting point 222. A trauma patient with bleeding in emergency is not able to maintain tongue position voluntarilyThe tongue is best managed byOropharyngeal airwayDeep suture and tractionIntubation and definite airwayHold tongue with towel dip 223. Diagnodent is based on theLaserVisible lightSound waveNano technology 224. Most common relationship of the primary molars in deciduous dentition:Mesial stepFlush terminal planeAngle Class IDistal step 225. Pulse rate in infant is normally:100 beats/min130 beats/min80 beats/min60 beats/min 226. Which articulator is based on arbitary theories of motionGysiMonsonTrumanWhipmix 227. When a calcified root canal cannot be located or instrumentedIt is no longer accessible to bacterial infection.Retrograde and replantation procedures should be considered.Extraction is the treatment of choice.The dentist must proceed with the understanding that an unexplored or unfilled canal is worse than a perforation. 228. Which of the following is the normal arrangement of lingual nerve and vessels in the tongue from medial to lateral?Nerve, artery and vein.Vein, artery and nerve.Artery, nerve and vein.Nerve, artery. 229. Best view for horizontally favourable and unfavourable angle fracture:PA towne's viewLateral obliquePA CephOPG 230. Which tooth is the only anterior tooth in either dentition to have a shorter inciso-cervical height than the mesio-distal width?The primary mandibular lateral incisorThe primary maxillary central incisorThe primary mandibular central incisorThe primary maxillary lateral incisor 231. Multiple drug resistance is transferred throughTransformationconjugationtransductionmutation 232. Hemolytic Streptococci can cause serious cross infections in hospital settings. These bacteria usually harbor which site in health workers working in the hospitals:HairThroatSkinNails 233. Dilatation of the pupil In head injury is due topontine haemorrhageall of the aboveCerebral Irritationcompression of III cranial nerve 234. The crowns of all 20 primary teeth begin to calcify between:4 to 6 months in utero8 to 9 months in utero2 to 3 months in utero1 to 2 months in utero 235. Dontrix gauze is used to:Measure wire deformationMeasure strength of wireMeasure forceMeasure wire distortion 236. Which of the following is a cause of delayed healing of a fracture:HypercholesterolemiaHypertensionObesityInadequate immobilization 237. Effects associated with cold working i.e lowered ductility and distorted grains can be eliminated by process known asConcentricityStrain hardeningAnnealingEutectic 238. Mean respiratory rate in different kind of smokers and nonsmokers, categorized as four categories mild, moderate, heavy and nonsmoker. test used to assess the means between them -One way ANOVATwo way ANOVAChi square testStudent t test 239. Facial index of 85.6% means:Euryprosopic faceMesoprosopic faceLeptoprosopic faceHypereuryprosopic face 240. An overextended distobuccal corner of a mandibular denture will push against which muscle during functionTemporalisZygomaticusMassaterOrbicularis oris 241. Identify the clasp assembly seen in the imageRPI claspRing claspI barAker clasp 242. iron deficiency anemia showsTIBC decreasedTIBC is increasesincrease in transferrin receptorsincrease in transferrin saturation Loading...