1. An upper permanent central incisor with a history of trauma shows root fracture in the middle-apical third of root. The coronal part shows signs of pulpal necrosis while the apical part shows no periapical radiolucency. What is the treatmentConventional RCT of both the apical and coronal segmentsRCT of only the coronal part followed by MTA placement while apical part remains untouchedRCT of the apical and coronal parts; fill with MTACoronal RCT +MTA placement with extraction of apical segmentQuestion 1 of 20 2. Which of the following is not a sign or symptom of a split tooth?Occasional mild to moderate painSensitivity to thermal changeLoss of sensitivity to pressureSplit not visible on radiographsQuestion 2 of 20 3. During an intracoronal bleaching procedure the surface to which bleaching agent is applied is the?FacialLingualDistalMesialQuestion 3 of 20 4. The most effective method of diagnosing the origin of fistula is:Periodontal probing of all teeth in the areaPercussing all of the teeth in the area of the fistulaVisually locating the closest tooth to the fistulaTracing the fistula with a gutta percha point in conjunction with the radiographQuestion 4 of 20 5. Which of the following is least associated with the short-term strength of a materialResilienceBrittlenessCreepModulus of elasticityQuestion 5 of 20 6. Which of the following is incorrect associationsManbibular molars most often refer pain to posterior region of the neckMaxillary second premolars most often refer pain to the temporal regionMaxillary molars most often refer pain to the earMaxillary incisors most often refer pain to the forehead regionQuestion 6 of 20 7. The material which is not as hard as the others, (lowest KHN) isSilicateZinc phosphate cementComposite resinDentinQuestion 7 of 20 8. Process of Internal resorption of root is influenced most by:Thickness of dentinVitality of pulpAge of patientType of patientQuestion 8 of 20 9. Which of the following is the most significant cause of ledge formation?InfectionAll of the aboveRemaining debris within the canalNo straight-line accessQuestion 9 of 20 10. A desirable property of cement basesHigh contact angleAdhesivenessHigh edge strengthLow coefficient of thermal conductivityQuestion 10 of 20 11. Common between amalgam an ceramic is:Equal compressive and tensile strengthHigh compressive strength and high tensile strengthIncreased working and setting timesHigh compressive strength and low tensile strengthQuestion 11 of 20 12. Streptococcus mutans are ____ and therefore ___Acidogenic, CariostaticAciduric, CariogenicAcidogenic, CariogenicAciduric, CariostaticQuestion 12 of 20 13. Pain from a tooth is characterized by:Dull pain conducted by myelinated A delta fibersSharp pain conducted by myelinated A delta fibersDull pain conducted by unmyelinated A delta fibersSharp pain conducted by unmyelinated A delta fibersQuestion 13 of 20 14. Ideal property of a root canal sealer is:Fill the space between solid core material and pulp canalExtrudes beyond the apical foramen.Seals and fills lateral canalCircular in morphology.Question 14 of 20 15. The ability of a cavity to resist dis-placement of the restoration in any direction, is due to theRetention formConvenience formResistance formOutline formQuestion 15 of 20 16. A canal is prepared apically to size 40.it is found no files between sizes 20 and 40 can pass beyond working length. What kind of apical prep is thisapical stopopen apexapical seatclosed apexQuestion 16 of 20 17. Painful pulpitis associated with an inflamed or degenerating pulpis caused by a decrease in intrapulpal pressure.is associated with stimulation of A fibers.is most likely due to nociceptive C-fibcr activity.results from a reduction of nerve cell permeability.Question 17 of 20 18. 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?Periapical surgery and sealing with retrograde amalgamExtractionPulpectomy with GP fillingApexification with MTAQuestion 18 of 20 19. ___________require endodontic treatment more often than any other tooth,________ while have the highest endodontic failure rate.Maxillary first molars, mandibular first molarsMandibular first molars, maxillary second molarsMaxillary second molars, mandibular first molarsMandibular first molars, maxillary first molarsQuestion 19 of 20 20. Etchant acts on mostly which part of enamel rodsTail regionPeriphery of head regionEqually all partsHead regionQuestion 20 of 20 Loading...
