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. How can you differentiate the zygoma from the max sinus in a max posterior PA






2. Size film used for BW on adults






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






4. What is the earliest sign of radiation exposure






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






6. when viewing a molar BW - What should be on the distal of the film






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






8. What Size film is used to take an occlusal radiograph of a 6 yr old child






9. What are the long term effects of radiation exposure






10. who discovered x-rays






11. What is used to clean the screens inside of a cassestte






12. What is the most important step in panoramic radiography






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






14. What type film is faster - intraoral or extraoral






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






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






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






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






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






20. What is characteristic radiation






21. How long is the final rinse






22. What is scatter radiation






23. Film submerged totally in fixer but not in developer






24. What type PID significantly reduces exposure to the patient






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






26. which dose of radiation is more biologically damaging






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






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

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29. Max lat. canine anatomy






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






31. When mounting a FMS - you notice that one film is blank. another film is dark - the teeth look strange - and it is difficult to determine What film it is. What do you think happened?






32. 3 film holding devices used for bisecting






33. Mand central anatomy






34. What is secondary radiation






35. What is inherent filtration






36. What is small doses of radiation given over a long period of time






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






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






39. How is vertical angulation established with the paralleling technique






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






41. 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?






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

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43. What film is used to diagnose interproximal decay






44. What is the purpose of a pano






45. you notice that the xrays you process are becoming successively lighter than the quality control film you compare it to. What should you do






46. What would cause the radiographic image to be blurred






47. What causes foreshortening






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






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






50. when manually processing dental film - you notice the temp. has gotten warmer as the day progressed. How should the developing time be changed?