43. Which one of the following tests would be most importatnt for distinguishing betw reversible and irriversible pulpitis Thermal test

46. Which one of the following procedursed would be most important for dist btw acute apical abcess and phoenix abcess radiographs

47. Which one of the following choices woud be best for distinguishing signs and symptoms of endo origin from signs and symptoms of periodontal origin Thermal tests, electric pulp and perio probing

48. During ex of oral tissues, a draining fistula is noted buccal to tooth 4. The tooth has a large MOD allow is not sensitive to percussion and does not resp to the ice test. The xray shows a thickened PDL space over the apex of the B root. The most probable diagnosis is NECROSSIS Phoenix abscess Irreversible pulpitis Chronic apical periodontitis (would have just a leions not thickened) Acute periodontal abscess

49. When a 4 th root canal exits in a maxillary 1 st molar why is it found in the mesiofacial root Its broad buccal-palatally

50. Which one of the foolowing is not an ingredient of Grossman’s root canal sealer Isoprene

51. Which statement is false regarding use of sodium hypochlorite Interacts w/peroxide to effervesce dentinal shavings and debris Facilities introduction of files by it s Should be used sparing ly (should be copiously)*, in calcified canal systems

52. Which of the following is not a design objective in the cleaning and shping phase of endo therapy? Enlarge the apical terminus

53. What charac do the clinical entitis of pulp polyps and non perf internal Usually

54. Gates glidden drils should be ideally used to Blend the coronal half of the canal into the access cavity

55. The incidence of mandibular incisors having 2 root canals is 40%

56. Episodic exposure to acid released by bact inside an incipient carious lesion can have the following affect on the pulp except Excruciating toothache pain