1. The absence of which layer of dentin predisposes it to internal resorption by cells present in the pulp?Secondary dentinCircumpulpal dentinPredentinMantle dentinQuestion 1 of 20 2. Principle disadvantage of minocycline in triple antibiotic paste:Leads to enamel hypoplasiaTooth stainingAnaphylactic reactionsTeratogenicQuestion 2 of 20 3. Polymerization shrinkage of composite causes compression stress of5 MPa1 MPa30 MPa15 MPaQuestion 3 of 20 4. The most important aspect of irrigation is:olume of irrigant usedLumen of needleAspiration of solutionChelating action of solutionQuestion 4 of 20 5. Which of the following statement(s) is(are) true regarding treatment of a tooth presenting with a sinus tract?Treat with conventional root canal therapy.The sinus tract should heal in 2 to 4 weeks after conventional root canal therapy.Antibiotics are not needed.All of the above choices are true.Question 5 of 20 6. Class I cavity involves:Occlusal and proximal surfaces of premolarsIncisal surface of anterior teethOcclusal surface of premolars and molarsOcclusal surface of posteriors and lingual surface of anteriorQuestion 6 of 20 7. A 16 year old boy reports with a history of traumatic injury 3 hours back leading to the avulsion of the tipper permanent incisor. The tooth is present with the patient. Which of the following should be the line of treatmentScrape the eriodontal ligament curette the socket replace and splintSeal the apex of the tooth with retrograde amalgam restoration and replace the tooth.Wash the tooth with Normal saline, clean, replace the tooth in the socket, check with a radiograph and splintClean the tooth, autoclave, replace and splintQuestion 7 of 20 8. Low threshold fibres of pulp mediating proprioception areC fibresA ?A ?A ?Question 8 of 20 9. Primary/master cone of GP point used for obturation of root canals is defined as:Cone that matches initial instrumentCone selected by master/staffCone with loose fitCone with snug fitQuestion 9 of 20 10. Incision for drainage will release exudates from a soft tissue swelling, reducing irritants and pain from pressure buildup. What are the ideal conditions under which to perform an incision for drainage?A necrotic tooth with an indurated swelling at the apexA tooth with irreversible pulpitis and pain on percussionA necrotic tooth with a fluctuant swelling at the apexA tooth with reversible pulpitis and pain on masticationQuestion 10 of 20 11. What should be the first treatment for an acutely avulsed tooth. Sterilize the root and reimplantGently replace with finger using light pressure, take radiograph and splintPulp protectionImmediate endodontic treatment and reimplantQuestion 11 of 20 12. A root canal treated anterior tooth had radiolucency at the apex. Curettage of the tooth was done and biopsy was performed. Two years later, the size of radiolucency was double its size at the time of surgery. What is the likely causeActinomyces infectionLeakage from poorly debrided or obturated canalFailure to resect root apexMissed accessory canalQuestion 12 of 20 13. The major objectives of access preparation include all of the following except which one?The attainment of direct, straight-line access to the apical portion of the root.The attainment of direct, straight-line access to canal orifices.The conservation of tooth structure.The confirmation of clinical diagnosis.Question 13 of 20 14. All of the following precautions should be taken when making an acrylic resin Temporary restoration for an MOD onlay preparation, exceptUndercuts in the preparation should not be blocked out as these will provide retentionopen margins should be avoidedPolymerization should not go to completion in the mouthOverextended resin should be removedQuestion 14 of 20 15. Buccal cavity of Mandibular canine is to be restored with light cured composite. What should not be done?Acid etchingPulp cappingRemove soft dentineBevelling of cavity marginsQuestion 15 of 20 16. You are halfway through the root canal treatment on tooth #30. To prevent bacterial growth in the canal between appointments, you decide to use an intracanal medication. The interappointment medicament of choice is:Calcium hydroxideSodium hypochloriteEthylenediaminetetraacetateChlorhexidineQuestion 16 of 20 17. Micro abrasion using modified Croll technique utilizes:18% Citric acid37% Phosphoric Acid10% HCL5 % HFQuestion 17 of 20 18. First consideration in a case with root fracture:Immobilisation and stabilizationRestoration of the toothImmediate root canal therapyTooth should be extractedQuestion 18 of 20 19. Which of the following tests is the least useful in endodontic diagnosis of children?PercussionElectric pulp testCold testPalpationQuestion 19 of 20 20. All of the following are factors in discoloration of tooth following a big amalgam filling except:Better marginal adaptationGood condensationPresence of voidsAssociation with root surfaceQuestion 20 of 20 Loading...
