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






2. What PPE should be worn when exposing radiographs






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






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






5. What is the purpose of replenishing the developer solution






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






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






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






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






10. What size and How is the film places when taking a molar PA in the mixed dentition

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






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






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






14. when processing - two films overlap in the developer - but not in the fixer. How would the films appear






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






16. when viewing a duplicated radiograph - you notice that the duplicate is too dark. What should you do to duplicating time to lighten the film






17. How long is the final rinse






18. What type PID significantly reduces exposure to the patient






19. which anatomical structures appear radiolucent






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






21. What is the max. permissable fose for radiation workers in systeme interventional units






22. What causes missing crowns






23. What type of film are rare earth screens paired with






24. What is the purpose of a pano






25. What type of safelight filter is acceptable






26. What are common sources of background radiation






27. How is vertical angulation established with the paralleling technique






28. when viewing a radiograph - the tooth looks normal in size and shape; However - there is a large blank space at the incisal edge and the apices are missing. What caused this error






29. In which area of the tooth is interproximal caries often seen






30. What anatomical structures appear radiolucent on a dental radiograph






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






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






33. What radiograph is used to sHow contrast in soft tissues






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






35. How are x-rays formed in the tubehead






36. What is scatter radiation






37. What control factors effect the density of a radiograph






38. What would cause the radiographic image to be blurred






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






40. What 2 unites are used to measure absorption






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






42. What causes a HERRINGBONE effect






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






44. Max lat. canine anatomy






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






46. What anatomical structures appear radiopaque on a dental radiograph






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






48. What determines the speed of dental films?






49. What is the purpose of the lead foil?






50. What is the ADA approved method of mounting dental radiographs