254235359-KSA-endodontics.docx - Sample of Endodontic...

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Sample of Endodontic Examination 1. A patient comes to your clinic on Saturday afternoon complaining of severe sharp pain when eating ice-cream. Your examination revealed a hypersensitive response to thermal test which subside as soon as the stimulus removed. The periapical radiograph shows normal intact PDL. What do you think is your diagnosis ? a) reversible pulpitis b) irreversible pulpitis c) pulp necrosis with chronic apical abcess d) patient has no problem 2. A 20 years old male student reported to the emergency clinic complaining of pain to thermal stimuli of the upper left side. The patient said that he had RCT on tooth #24. The cause of the pain could be: a) remaining vital tissue at the apical third of the buccal root. b) over-instrumentation of the palatal canal. c) debris pushed through the apical foramen of the palatal root. d) it must be another tooth and not #24. 3You started RCT on tooth #46 two days ago which was asymptomatic. Patient was given another appointment to finish the RCT. The patient cameback to your clinic complaining of severe pain when chewing on the same tooth. Clinical examination revealed pain on percussion only. Radiograph shows normal apical area. The cause of the pain might be: a) over-instrumentation. b) overfilling c) caries was left in the access opening. d) all of the above 4. Leaving the tooth open between appointment during root canal therapy could lead to: a) healing of the periapical lesion. b) bacterial contamination of the root canal system. c) neither (a) nor (b). 5. The pain characteristics of the C-fibers is a) dull b) severe and burning c) sharp and pricking d) none of the above \ 6. The fluid movement in dentinal tubules (Hydrodynamic theory) is one of the theories of dentin sensitivity (pain). It was introduced by: a) Brannstrom 1966 b) Byers 1980 c) Kim 1983 d) none of the above 7. The pain characteristics of A-delta fibers is sharp and pricking. a) true b) false 8. The main pathway of communication between Endodontium and Periodontium is via: a) lateral canals b) apical foramina c) secondary canals d) dentinal tubules 9. Endodontic lesion is often characterized by narrow probing defect.
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