1. The occlusal portion of the wax pattern is usually carvedLastAfter the faciolingual surfaceAfter the proximal surfacesFirstQuestion 1 of 20 2. Cells found predominantly in apical part of necrosed pulp with incomplete root formation:NeutrophilsOdontoblastsLymphocytesMultipotent stem cellsQuestion 2 of 20 3. When preparing a Class II cavity for amalgam, the proximal portion shouldNever extend below the contact areaBe extended upto 4mm into dentinIn normal circumstances be extended into the gingival creviceNot have sharp external point anglesQuestion 3 of 20 4. The reduction of which of the following represents the most significant advantage of the acid etch techniqueReduced porosity of restorationCoefficient of thermal expansion of restorative materialMicroleakageShrinkage of restorative materialQuestion 4 of 20 5. Which of these instrument is not used in obturation?PluggerBarbed broachLentulospiralSpreaderQuestion 5 of 20 6. Triturating a dental amalgam will _____.Reduce the size of the alloy particlesReduce the crystal sizes as they formCoat the alloy particles with mercuryDissolve the alloy particles in mercuryQuestion 6 of 20 7. The most common pin used in restorative procedures is a(an) _____.AmalgampinFriction-locked pinCemented pinSelf-threaded pinQuestion 7 of 20 8. Preventive resin restoration is indicated inDeep caries to prevent progress of lesionWide cavity to prevent cusp fractureNoncavitated pit and fissuresCavitated fissures which require restorationQuestion 8 of 20 9. Causes of postoperative sensitivity with amalgam restorations include all of the following except _____.Lack of adequate condensation, especially lateral condensation in the proximal boxesLack of dentinal sealingExtension onto the root surfaceVoidsQuestion 9 of 20 10. Tug-back is achieved and the canal is ready for fillingwhen the gutta-percha is easily removed from the root canal.after cementation.when the gutta-percha has extended beyond the apex.when the gutta-percha placed to apical constriction exhibits resistance on removal.Question 10 of 20 11. In a class I cavity for amalgam, the mesial and distal walls show slight divergence towards the occlusal surface. This is done to:Prevent undermining of marginal ridgesIncrease bulk of amalgamPrevent placing amalgam margin at area of cuspal contact of opposite toothAllow easier condensation of amalgamQuestion 11 of 20 12. In a post & core restoration, maximum amount of stress is concentrated:On the distal side of root canalAt the root apexDistributed uniformly along the root lengthOn shoulder of preparationQuestion 12 of 20 13. With regard to the mercury controversy related to the use of amalgam restorations, which statement is incorrect?True allergies to amalgam rarely have been reported.Alternative amalgam-like materials (with low or no mercury content) have promise about mercury.There is lack of scientific evidence that amalgam poses health risks to humans except for rare allergic reactions.Efforts are underway to reduce the environmental mercury to which people are exposed to lessen their total mercury exposure.Question 13 of 20 14. Gutta Percha and sealer form a monoblock known as:Secondary monoblockQuaternary monoblockPrimary monoblockTertiary monoblockQuestion 14 of 20 15. During instrumentation of tooth #19, you realize that you are unable to negotiate your file to the complete working length. The procedural error that has occurred is most likelyLedgingInstrument separationInadequate straight line accessVertical root fractureQuestion 15 of 20 16. In root fractures of the apical one third of permanent anterior teeth, the teeth usuallyDiscolor rapidlyRemain in function and are vitalUndergo pulpal necrosis and become ankylosedAre indicated for extraction and prosthodontic replacement.Question 16 of 20 17. Which of the following is true regarding fluoride release from GIC:Rapid early but falls with decreasing concentration of fluorideRapid after 1 monthVery slow during the first few daysIt remains the sameQuestion 17 of 20 18. Principle disadvantage of minocycline in triple antibiotic paste:Anaphylactic reactionsLeads to enamel hypoplasiaTeratogenicTooth stainingQuestion 18 of 20 19. Fiber reinforced composite can be used for all of the following except:Obturation of deciduous teeth.As a space maintainerAs a post in teeth with crown fractured due to traumaAs a splintQuestion 19 of 20 20. The endodontic access form is triangular in shape for which of the following teeth?Mandibular central incisor, maxillary first molar, and maxillary first premolarMaxillary central incisor, maxillary first molar, and maxillary second molarMaxillary central incisor, mandibular central incisor, and maxillary lateral incisorMaxillary canine, maxillary first premolar, and maxillary lateral incisorQuestion 20 of 20 Loading...
