Test your basic knowledge |

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. desired thickness of lead apron






2. 1/10th dosage of gen. public - What are photons






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






4. What are common sources of background radiation






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






6. According to principles of shadow casting - How should the film be placed in relation to the tooth?






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






8. What Size film is used to take a BW on a 3 yr. old






9. What info should be recorded on the dental radiographic mount

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






11. How would a film appear if submerged totally in the developer but not in the fixer






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






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






14. Explain PSP






15. How does resolutiong and detial of a panoramic radiograph compare with that of PA's and BW's






16. Mand molar anatomy






17. What causes elongation






18. How long is the final rinse






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






20. What causes missing crowns






21. What must a patient remove before taking a PANO






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






23. How does reducing exposure to the patient benefit the operator






24. Size film used for PA's on adults






25. which anatomical structures appear radiopaque






26. your dentist recommends that a patient have xrays taken - bu the patient refuses. What should be done

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






28. How does kVp affect patient exposure






29. With What type film are intensifying screens used?






30. What 2 unites are used to measure absorption






31. What is the optimum processing temp.






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






33. What are the long term effects of radiation exposure






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






35. which dose of radiation is more biologically damaging






36. What causes foreshortening






37. When viewing a periapical radiograph - you notice that the image of the tooth is extremely long and well defined; However the apices are missing. What technique was used to take the radiograph? What caused the roots to appear long?






38. What is penumbra






39. How is vertical angulation established with the bisecting technique






40. What is the annual MPD for pregnant dental assistant






41. What device is used to check quality of processing chemicals






42. How often must you replenish the solutions in an automatic processor






43. How are indirect exposure films exposed






44. How does packet placement differ b/w bisecting and paralleling






45. Proper patient positiong for paralleling

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46. Size film used for occlusals on adults






47. What causes clear film






48. What is the main source of radiation exposure to the operator






49. In the darkroom - you unwrap a film and place a coin on top of the film for several minutes. when you process the film - you notice a slight - well-defined white circle on the film. What does this mean?






50. What radiographs are used to locate a salivary stone in the submandibular duct