1. In Periapical index (PAI), Grade 3 is defined as:Severe apical periodontitis, with exacerbating featuresApical periodontitis with well-defined radiolucent areaChanges in bone structure with some diffuse demineralizationSmall changes in bone structure with no demineralizationQuestion 1 of 20 2. 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.First statement is false, second is true.First statement is true, second is false.Both statements are false.Both statements are true.Question 2 of 20 3. Micro abrasion is done using:10% HCL20% Nitric acid37% phosphoric acid10% HF acidQuestion 3 of 20 4. A dentin bonding agent has two ends: hydrophilic and hydrophobic. The hydrophobic end binds to:Collagen in dentinComposite resinEnamelSmear layerQuestion 4 of 20 5. Placing GIC under composite for pulp protection is called:Burger techniqueSandwich techniqueBilayer techniqueDirect pulp cappingQuestion 5 of 20 6. Areas of rarefaction are evident on x-ray examination whenA tooth fracture has been identified.The tooth is responsive to cold.The cortical layer of bone has been eroded.The tooth is responsive to heat.Question 6 of 20 7. Pu1pal medication and thermal protection is givenSolution liner (2-50um)Cement base (1-2mm)Suspension liner (20-25um)Cement liner (0.2-1mm)Question 7 of 20 8. After traumatic tooth injury where pulp survives the insult, the tooth will test positive to pulp testing in how much time2 months1 months6 months3 monthsQuestion 8 of 20 9. Which of the following defines the difference between a chronic apical abscess and a periapical cyst/granuloma?Chronic apical abscess is asymptomaticThe border of the radiolucent lesionOnly histological examination can differentiateChronic apical abscess is symptomaticQuestion 9 of 20 10. The most common pin used in restorative procedures is a(an) _____.Cemented pinFriction-locked pinAmalgampinSelf-threaded pinQuestion 10 of 20 11. Which cavities can involve only posterior teethclass Iclass Vclass VIclass IIQuestion 11 of 20 12. Which one of the following cannot be observed on a conventional radiograph?Type of canals of tooth #21.Buccal curvature of the mesial root of tooth #30.Open apex of tooth #8.Canal calcification of tooth #15.Question 12 of 20 13. Irreversible pulpitis usually occurs above intrapulpal pressure of40 mmHg30 mm Hg20 mm Hg10 mmHgQuestion 13 of 20 14. An Asian patient presents to your office with pain bilaterally in her lower second premolars. Both teeth are sensitive to percussion and show periapical radiolucencies on radiographic examination. The teeth do not respond to either cold or electric pulp tests. There is an irregular bulge on the occlusal surfaces of each tooth. The most likely diagnosis is:Irreversible pulpitisPulp stonesDens evaginatusDens invaginatusQuestion 14 of 20 15. Principal nerve fibres in Pulp are:Unmyelinated C fibers and myelinated A fibersMyelinated C fibers and unmyelinated A fibersA J3 and M fibers onlyB and C fibersQuestion 15 of 20 16. Which of the following materials has the highest linear coefficient of expansion?Direct goldComposite resinTooth structureAmalgamQuestion 16 of 20 17. Irreversible pulpitis pain in which of the following sites is most likely to radiate to the ear?Mandibular molarMandibular premolarMaxillary premolarMaxillary molarQuestion 17 of 20 18. The pupal response to glass ionomer cement is similar to that forZinc oxide - eugenol cementPolycarboxylate cementCopper phosphate cementResin cementsQuestion 18 of 20 19. When using bioactive substances for the repair, of a root perforation, which of the following zones will not be seenZone of stimulationZone of proliferationZone of necrosisZone of hard tissue; formationQuestion 19 of 20 20. An adverse pulpal reaction is likely to occur if the following material is placed directly into a deep cavityPolycarboxylateCalcium hydroxideAmalgamComposite resinQuestion 20 of 20 Loading...