1. What will happen if MTA is mixed for more than 4 minutes:Compressive strength decreasesDehydration of mass occursFastens setting timeApical Barrier formation is defectiveQuestion 1 of 20 2. The 02 taper on hand K-files is _____.0.02-mm increase in diameter per 2-mm increase in length0.02-mm increase in diameter per 1-mm increase in length0.2-mm increase in diameter per 2-mm increase in length0.2-mm increase in diameter per 1-mm increase in lengthQuestion 2 of 20 3. Color change in a process indicator strip indicatesVerification of sterilization.change in ph.A need to reprocess.Verification of completed sterilization cycle.Question 3 of 20 4. A classic teardrop-shaped periradicular lesion on a radiograph can be indicative of a vertical root fracture. The prognosis of a vertical root fracture is hopeless, and the tooth should be extracted.Both statements are true.First statement is false, second is true.First statement is true, second is false.Both statements are false.Question 4 of 20 5. Primary/master cone of GP point used for obturation of root canals is defined as:Cone selected by master/staffCone with loose fitCone that matches initial instrumentCone with snug fitQuestion 5 of 20 6. When amalgam is polished, the metal crystals at the surface get flattened. The layer is calledBeilby layerWhitby layerDalby layerTrilby layerQuestion 6 of 20 7. An 8 year old child reports with a fractured upper central incisor with a history of trauma 1 year back. On examination the pulp is necrotic but no periapical radiolucency can be seen. What will you do?Pulpectomy with GP fillingApexification with MTAPeriapical surgery and sealing with retrograde amalgamExtractionQuestion 7 of 20 8. Which of the following is not one of the four zones in four-handed dentistry:Patient zoneAssistant zoneOperator zoneStatic zoneQuestion 8 of 20 9. The tooth preparation technique for a Class I amalgam on a mandibular first molar does not include which of the following?Maintaining a narrow isthmus widthEstablishment of pulpal depth of 1.5 to 2 mmInitial punch cut placed in the most carious pitOrientation of bur parallel to the long axis of the toothQuestion 9 of 20 10. Furcal perforation is often the result ofnatural occurrence.oversized radicular access preparations.use of Hedstrom files.use of K-type filesQuestion 10 of 20 11. When carving a Class I amalgam restoration, which statement is false?The carved amalgam outline should coincide with the cavosurface margins.The blade of the discoid carver should move parallel to the margins resting on the partially set amalgam.Carving may be made easier by waiting 1 or 2 minutes after condensation before it is started.Do not carve deep occlusal anatomy.Question 11 of 20 12. Interstitial denticles are those denticles that areContinuous with the dentinal wallLying free in the pulpEntirely surrounded by secondary dentinHaving dentinal tubules within themQuestion 12 of 20 13. Irrigant of choice in a tooth with an acute pulpal abscess isHydrogen peroxideNormal salineEDTASodium hypochloriteQuestion 13 of 20 14. The retention-resistance form of a Class II inlay cavity is dependent upon all of the following, exceptFlat gingival and pulpal wallsProximal box formOcclusal dovetailGingival bevelsQuestion 14 of 20 15. Possible etiology of internal resorption:The presence of low grade chronic pulpitisFurcation involvementLuxation injuryNecrosis of pulpQuestion 15 of 20 16. The material which is not as hard as the others, (lowest KHN) isDentinSilicateComposite resinZinc phosphate cementQuestion 16 of 20 17. In the inflammatory process, which of the following cell types function as phagocytes?Neutrophils and macrophages.Macrophages and lymphocytes.Lymphocytes and neutrophils.Plasma cells and basophils.Question 17 of 20 18. Which of the following horizontal root fracture has most favourable prognosis:MiddleApicalCervicalCorona!Question 18 of 20 19. The functionally generated occlusal registration in the indirect gold inlay technique can be termedCentric relationAnatomic registrationStatic registration of dynamic occlusionCentric relation of occlusionQuestion 19 of 20 20. Patients scheduled for retreatmentShould expect successful resolution.May complain of thermal response on an adjacent tooth.Should expect surgical intervention.May expect to have less interappointment pain.Question 20 of 20 Loading...
