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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 is characteristic radiation






2. How does reducing exposure to the patient benefit the operator






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






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






5. What 3 types of cells are most radiosensitive






6. What is the earliest sign of radiation exposure






7. How does film speed correlate with definition and detail?






8. What would cause a film to be too dark






9. According to principles of shadow casting - How should the central beam be directed






10. Mand central anatomy






11. What anatomical structures appear radiolucent on a dental radiograph






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






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






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






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






16. What is the most important step in panoramic radiography






17. How is vertical angulation established with the paralleling technique






18. What projection would you take for a patient complaining of pain in the lower left molar area






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






20. What type PID significantly reduces exposure to the patient






21. What is the term to describe the overall blackness of a radiograph






22. What causes conecut






23. What is the collimator made out of...






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

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25. you change you kVp from 90 to 70 and leave all other factors the same. What is the result






26. What is reticulation






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






28. What must a patient remove before taking a PANO






29. What control factors effect contrast






30. What size bulb is used in safelight






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






32. What are common sources of background radiation






33. which projection is used to view sinuses






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






35. What Size film is used to take a BW on a 3 yr. old






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






37. What film is used to diagnose interproximal decay






38. What is the purpose of the lead foil?






39. How long is the final rinse






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






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






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






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






44. What parts of the x-ray machine are included in the anode circuit






45. What can be done to prevent air bubbles from being trapped on the surface of films during manual processing






46. What would happen to a film that is placed in the fixer prior to development






47. In the darkroom - you unwrap a film and place a coin on top of the film for several minutes. when you process the film - you notice a slight - well-defined white circle on the film. What does this mean?






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






49. What are filters made out of...






50. 3 film holding devices used for bisecting







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