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. in which pericapical projection will the mental ridge be visible






2. What is characteristic radiation






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






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






5. What is the purpose of the embossed dot

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






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






8. which dose of radiation is more biologically damaging






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






10. when viewing a PANO - you notice that a lot of spine sHows on both side of the film - What caused this






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






12. What are the short term effects of radiation exposure






13. which anatomical structures appear radiopaque






14. Max premolar anatomy






15. How is vertical angulation established with the bisecting technique






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






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






18. after processing exposed dental film - you notice dark spots on the film. What caused this






19. you change from an 8 inch to an 16 inch focal film distance. How is the intensity of the beam affected






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






21. Mand lateral/canine anatomy






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






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






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

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25. What factors affect the sharpness of the radiographic image






26. What is penumbra






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






28. How long is the final rinse






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






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






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






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






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






34. What 3 types of cells are most radiosensitive






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






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

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37. How should the frequency of radiographic exposures be determined






38. What periapical technique offers the best diagnostic quality?






39. How does exposure time differ b/w adults and children






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






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






42. How can exposure to the operator be reduced






43. Mand central anatomy






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






45. when taking a radiograph - you pulls the cone out about 6 inches from the patient's face. What is the result






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

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






48. Size film used for PA's on adults






49. What causes overlapping






50. What is the bremsstrahlung radiation