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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 latent image






2. Size film used for anterior PA's for patients with narrow arches






3. Proper patient positiong for paralleling

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






5. your film badge report sHows that you have received a small amt. of radiation. What should you do






6. What type of safelight filter is acceptable






7. What is a large dose of radiation given over a short period of time






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






9. What factors affect the sharpness of the radiographic image






10. 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?






11. How does film speed correlate with definition and detail?






12. What must be done to xray fixer priod to disposal






13. 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?






14. What is thermionic emission






15. Explain PSP






16. What is the major use of topographical occlusal radiographs






17. What is the purpose of the lead foil?






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






19. an insurance company requests a patient's radiographs when examining a dental clain. you only have one copy of the radiographs. What should you do






20. What is the latent period






21. What causes elongation






22. What type of x-rays have greater penetrating power - long or short wavelength?






23. How do you differentiate b/w max and mand molar when mounting






24. How far should the operator stand from the source of radiation






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






26. How long does film stay in the developer






27. What is penumbra






28. A properly exposed film appears completely black. when was is exposed to white light






29. What determines the speed of dental films?






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






31. How often should developing solutions be changed






32. What are the short term effects of radiation exposure






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






34. Film submerged totally in fixer but not in developer






35. What factors would decrease edge sharpness and increase magnification






36. What is the name for the part of the target that is struck by electrons






37. What type PID significantly reduces exposure to the patient






38. What is the emulsion composed of?






39. What are the long term effects of radiation exposure






40. How should x-ray film be stored






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






42. According to principles of shadow casting - preferred source-object distance






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






44. you notice that a radiograph taken several months ago is brown and spotted. What happened






45. Mand lateral/canine anatomy






46. What happens in the fixer






47. What causes a HERRINGBONE effect






48. if the source-object distance is cut from 16 to 8 - What must be changed to compensate






49. What Size film is 1 1/16 x 2 1/8






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







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