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Radiology 2

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. How does resolutiong and detial of a panoramic radiograph compare with that of PA's and BW's






2. You process a set of BW's in the automatic processor. three of the BW's are of good quality - but fourth is completely blank. What probably caused this?






3. When mounting dental radiographs - What is the best way to differentiate max and mand films?






4. What Size film is 15/16 x 1 9/16






5. A patient complains of pain in the upper molar region. What radiographic exposure should be made?






6. How often should an FMS be taken on an adult with no significant medical history






7. How does exposure time for children compare to that of an adult






8. What is the best way to reduce exposure to patient






9. What is the emulsion composed of?






10. What causes missing apices






11. What causes missing crowns






12. Mand central anatomy






13. On a mandibular molar PA - Where is the mylohoid ridge located






14. What size bulb is used in safelight






15. How does kVp affect patient exposure






16. when mounting a film the dot is convex - On What side of the mouth would you find #32?






17. you change you kVp from 90 to 70 and leave all other factors the same. What is the result






18. You take a radiograph using 10 mA 30 impulses and 90 kVp - your dentist wants a radiograph with increased contrast and equal density. What settings would you use?






19. when taking a paralleling radiograph of a patient with palatal tori - Where is the film places






20. when viewing a radiograph - the tooth looks normal in size and shape; However - there is a large blank space at the incisal edge and the apices are missing. What caused this error






21. when viewing a PANO - you notice that a lot of spine sHows on both side of the film - What caused this






22. which dose of radiation is more biologically damaging






23. How are indirect exposure films exposed






24. What part of the x-ray machine is responsible for providing the electrons






25. What is the most commonly used personnel monitoring devide for dental offices






26. What is the major diff. b/w particulate and electromagnetic radiation






27. How does exposure time for edentulous patients compare to dentulous patients






28. What is characteristic radiation






29. What equation is used to calculate the accumulated MPD






30. What is formed when high speed electrons strike the target






31. Proper patient positiong for paralleling

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32. What Size film is 7/8 x 1 3/8






33. What can be done to prevent air bubbles from being trapped on the surface of films during manual processing






34. How should x-ray film be stored






35. What 3 types of cells are most radioresistant






36. What is the maximum size of the x-ray beam at the patients face






37. which projection is used to view sinuses






38. What is the bremsstrahlung radiation






39. Film submerged totally in fixer but not in developer






40. What must a patient remove before taking a PANO






41. What is inherent filtration






42. if the kVp is increased from 75-90 - What must be done to achieve a radiograph of comparible density






43. What type film is faster - intraoral or extraoral






44. What are common sources of background radiation






45. What 3 types of cells are most radiosensitive






46. How can exposure to the operator be reduced






47. What anatomical structures appear radiolucent on a dental radiograph






48. What is the best method of protecting the thyroid gland from radiation?






49. What types of cells must be effected in order for mutation to occur






50. How often should developing solutions be changed






Can you answer 50 questions in 15 minutes?



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