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. Difference b/w direct and indirect exposure sensor?






2. Size film used for BW on adults






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


4. What 2 unites are used to measure biologic effect and dose equivalent






5. What causes missing apices






6. Mand lateral/canine anatomy






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






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






9. which anatomic feature is visible on a PANO - bu not on a PA






10. What 3 types of cells are most radioresistant






11. What causes film fogging






12. What causes conecut






13. What is the area of the skull that is in focus on a pano


14. What is the earliest sign of radiation exposure






15. How do you determine How often to take radiographs






16. What causes clear film






17. desired thickness of lead apron






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






19. What are the short term effects of radiation exposure






20. What type of film are calcium tungstate screens paired with






21. What is the x-ray at the center of the primary beam called






22. How often should developing solutions be changed






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






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


25. What is the latent period






26. Explain PSP






27. What is the primary beam






28. What are the 2 units used to measure exposure to radiation






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






30. you process four BW films. three of the films appear normal - but one is clear. What happened


31. when should radiographs be taken on a pregnant patient






32. What type of safelight filter is acceptable






33. What causes a HERRINGBONE effect






34. 3 film holding devices used for bisecting






35. How are stabe film holders sterilized b/w uses






36. Max molar anatomy






37. How long are films fixed






38. What is added filtration






39. What does alara stand for






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






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






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






43. When using D speed film - you use 50 impulses of radiation. How many impulses would you use with E speed film?






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






45. total filtration required of x-ray machines that operate above 70 kVp






46. What is the annual MPD for pregnant dental assistant






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






48. What radiographs are used to determine if a foreign object is located facially or lingually






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






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