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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 happens in the developer






2. Proper patient positioning for bisecting






3. What is the latent image






4. What is the proper patient position for BW's?






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






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






7. an insurance company requests a patient's radiographs when examining a dental clain. you only have one copy of the radiographs. What should you do






8. The cells from most sensitive to least sensitive






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






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






11. What causes foreshortening






12. How do you determine How often to take radiographs






13. What is formed when high speed electrons strike the target






14. What is the major diff. b/w particulate and electromagnetic radiation






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






16. How does radiation effect cells






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






18. which projection is used to view sinuses






19. What are the short term effects of radiation exposure






20. What anatomical structures appear radiolucent on a dental radiograph






21. in which pericapical projection will the mental ridge be visible






22. What would cause a film to be too light






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






24. What 3 types of cells are most radioresistant






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






26. What can be done to minimize gagging when taking radiographs






27. How often are BW taken on children with high risk






28. What type of safelight filter is acceptable






29. What causes overlapping






30. What is the earliest sign of radiation exposure






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






32. What determines the speed of dental films?






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






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






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






36. Your dentist asks you to take a FMS on a 65 yr old edentulous patient. How many exposures will you take? which exposures are not necessary? What intraoral technique will you use? What might be better than a FMS?






37. 3 film holding devices used for bisecting






38. What is a large dose of radiation given over a short period of time






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






40. your film badge report sHows that you have received a small amt. of radiation. What should you do






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






42. What is the major use of cross sectional occlusal radiograph






43. What is done to the primary beam to make is useful






44. you notice that a radiograph taken several months ago is brown and spotted. What happened






45. Max. centrals anatomy






46. which dose of radiation is more biologically damaging






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






48. What control factors effect contrast






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






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







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