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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. What is the purpose of collimation






2. What NC agency is resposible for monitoring dental x-ray equipment






3. when viewing a PANO - you notice that the right TMJ is magnified - bu the left TMJ is normal. What caused this error






4. Film submerged totally in fixer but not in developer






5. What would cause a properly exposed film to appear dark?






6. What part of the x-ray machine helps remove heat






7. using a 16 inch cone focal-film distance - the diameter of the beam measured at the patient's face should be no larger than






8. Size film used for occlusals on adults






9. What is the major use of cross sectional occlusal radiograph






10. What looking at a PANO What causes a big smile






11. The cells from most sensitive to least sensitive






12. What radiograph is used to sHow contrast in soft tissues






13. How far from the work surface must the safelight be mounted






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






15. What exposure is taken to determine jaw relationships in ortho treatment planning






16. What 3 types of cells are most radioresistant






17. What is the purpose of taking radiographs of an edentulous patient






18. What is the ADA approved method of mounting dental radiographs






19. What equation is used to calculate the accumulated MPD






20. What is reticulation






21. What is the primary beam






22. What is the term to describe the overall blackness of a radiograph






23. What parts of the x-ray machine are included in the cathode circuit






24. What is the collimator made out of...






25. When interpreting radiographs - you notice a radiopaque extension or spur off the proximal surface of #30. What do you think this is?






26. According to the principles of shadow casting - preferred object-film distance






27. Size film used for BW on adults when only one film is taken on each side






28. How is vertical angulation established with the paralleling technique






29. When can the films be exposed to white light






30. Your dentist asks you to take a FMS on a 65 yr old edentulous patient. How many exposures will you take? which exposures are not necessary? What intraoral technique will you use? What might be better than a FMS?






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






32. What exposure would be useful in identifying salivary stones in the submandibular gland






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






34. What is the base of dental film composed of?






35. Mand central anatomy






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






37. What quality control procedures should be performed on xray cassettes






38. Difference b/w direct and indirect exposure sensor?






39. What are three types of image receptors used in digital radiography






40. What film would be used to locate a foreign body in the bucco-lingual relationship






41. What size bulb is used in safelight






42. List the properties of x-rays






43. How long are films fixed






44. How much total filtration is required of x-ray machines that operate lower than 70 kVp






45. What 2 unites are used to measure absorption






46. What type lead apron should be used when taking PANO radiographs






47. What should be done prior to ordering radiographs for a patient






48. What control factors effect the density of a radiograph






49. What type of projection is used to visualize the crestol alveolar bone on a patient with moderate to severe bone loss






50. What would cause increased magnification - decreased resolution and edge sharpness







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