1. Pu1pal medication and thermal protection is givenSolution liner (2-50um)Cement base (1-2mm)Cement liner (0.2-1mm)Suspension liner (20-25um)Question 1 of 20 2. Following obturation, sealer was left in the coronal pulp chamber of tooth #9, and the conservative access was filled with a composite restoration. This could most likely result in:Root canal failureVertical root fractureInadequate coronal sealDiscoloration of the toothQuestion 2 of 20 3. While making an access opening for root canal treatment of Maxillary first premolar, chances of perforation are high if the operator is not aware of:Concavity at CEJ on mesial root surfaceProximity of furcation to floor of pulp chamber between the buccal and lingual rootConcavity at CEJ on distal root surfaceRudimentary palatal cuspsQuestion 3 of 20 4. Apicoectomy of apical 3mm of the root removes successfully what Percentage of apical ramifications0.860.950.930.98Question 4 of 20 5. Canal which is most difficult to locate in a maxillary 1" molar is:Both palatal and distobuccalDistobuccalMesiobuccalPalatalQuestion 5 of 20 6. In the double cone pattern of proximal caries extending through enamel and dentin, the apices of the two conesAre directed towards each otherAre directed towards the external surfacePoint in opposite directionsPoint towards the pulpQuestion 6 of 20 7. An upper central incisor in a 7 year old child has an open apex and needs to undergo root canal treatment. The best way to determine the working length in this case is byRadiographic determination using IOPA X-rayUsing an apex locatorPaper point methodTactile methodQuestion 7 of 20 8. 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 is necrotic.Further testing is necessary to make a definitive diagnosis.The tooth needs root canal therapy.The tooth has an inflamed PDL.Question 8 of 20 9. With the cone moved to the distal and facing towards the mesial, the mesiobuccal root of the first molarWill be projected distally on the film.Will not move.Appears to move lingually.Will be projected mesially on the film.Question 9 of 20 10. Which of the following is not a sign or symptom of a split tooth?Split not visible on radiographsOccasional mild to moderate painSensitivity to thermal changeLoss of sensitivity to pressureQuestion 10 of 20 11. The main purpose of finishing the enamel wall of a prepared cavity is toPrevent microleakageSmoothen the walls of the cavity to permit accurate adaptation of the restorative materialRemove loose enamel rodsEnsure parallelism of the wallsQuestion 11 of 20 12. Suspension liners, for example calcium hydroxide, harden intraorally by the:Chemical reaction of acids and basesChemical reaction involving chelationPhysical reaction of dryingChemical reaction involving polymerizationQuestion 12 of 20 13. Necrosis affects periapical cementum less than bone because:Infection involves bone preferentiallyMore number of pathways of spread of inflammation in boneCementum is vascular while bone is avascularCementum is more resistant to ResorptionQuestion 13 of 20 14. An 8-year-old patient presents to your office for an emergency visit with a traumatic exposure of tooth #9. The treatment of choice for this patient isRoot-end closure procedure/apexificationTraditional root canal therapyPartial pulpectomyVital pulp therapy/apexogenesisQuestion 14 of 20 15. Low threshold fibres of pulp mediating proprioception areA ?A ?A ?C fibresQuestion 15 of 20 16. Which of the following statements regarding caries risk assessment is correct?The presence of restorations is a good indicator of past caries activity.The presence of dental plaque is a good indicator of current caries activity.The presence of restorations is a good indicator of current caries activity.The presence of pit-and-fissure sealants is a good indicator of current caries activity.Question 16 of 20 17. Splinting of cervical root fracture should be done for4 weeks40 days4 months14 daysQuestion 17 of 20 18. Retraction cord is often used with a hemostatic agent to capture an accurate impression. Which hemostatic agents minimize tissue damage?(SO4)2 and ZnCl2Fe2(SO4)3 and ZnCl2ZnCl2 and AlCl3Fe2(SO4)3 and AlCl3Question 18 of 20 19. Which of the following may be an adverse systemic reaction to aluminium chloride impregnated gingival retraction cords?Increased respiratory rateNone of the aboveIncreased heart rateElevated blood pressureQuestion 19 of 20 20. The outline form of the access cavity of which of the following teeth is trapezoid in shape?Maxillary first molar and maxillary second premolarMandibular first molar and mandibular second molarMandibular first molar and maxillary second molarMaxillary first molar and mandibular first molarQuestion 20 of 20 Loading...