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Radiology 3

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. Between canine and lateral incisor - depression is not always visible - radiolucent






2. Superior to internal oblique ridge; anterior border of ramus ends in external oblique ridge; radiopaque band






3. Sievart






4. Occurs frequently due to the high concentration of water in cells.






5. Effects seen years - decades - or generations later






6. Sharp - thornlike projection that appears radiopaque.






7. Extends from alveolar bone between maxillary centrals to posterior hard palate; seen as a radiolucent line






8. Rate which exposure to radiation occurs and absorption occurs (more damage occurs with high dose due to rapid delivery and does not allow for repair)






9. Surrounds root - cortical bone - radiopaque






10. Produced when an electron hits the nucleus of a tungsten atom or passes very close to the nucleus of a tungsten atom.






11. Space between root and the lamina dura - thin - radiolucent line - healthy PDL is uniform thickness






12. Scooped out of depressed area of bone that appears radiolucent






13. The penetrating x-ray beam that is produced at the target of the anode






14. Gray






15. Two small openings (radiolucent) found on floor of nasal cavity->common exit is incisive foramen






16. Located above maxillary premolar/molar teeth - border is made up of cortical bone; sinus cavity is radiolucent compartment






17. Do not occur in dentistry






18. Posterior to mandibular third molar






19. Thin - curved areas of bone - radiopacities within nasal cavity and septum






20. Cortical bone; J or U shaped radiopacity






21. Occurs very little; most photons pass through cell with little or no damage






22. Marked prominence that appears radiopaque.






23. Anterior ramus of mandible; attachment for muscle of mastication; superimposed around maxillary tuberosity.






24. Tube that passes through bone - contains nerve canals/blood vessels/and appears radiolucent






25. Cortical bone - radiopaque band above maxillary incisors






26. A form of secondary radiation - the result of x-rays that has been deflected from its path by an interaction with matter.






27. Bony wall that divides 2 spaces - radiopaque






28. Removes unexposed silver halide crystals and creates white/clear areas on film; black metallic silver remains on film.






29. Within maxillary sinus; acts as a division - radiopaque lines sometimes not visible






30. Closed - pointed cone-high production of scatter - not used any longer.






31. Quantity of radiation received or total amount absorbed (more damage with tissue absorbing large quantities of radiation)






32. Reproductive (ova - sperm). Effects are passed on to generations. Genetic damage cannot be repaired






33. Bump of bone - muscle attachment; lingual aspect of mandible - 'ring shaped' radiopacitiy below mandibular incisors.






34. Opening/hole in bone that allows the passage of blood vessels/nerves and appears radiolucent






35. Mostly seen in mandibular nerve/blood supply vertical radiolucent lines






36. Encases/supports teeth






37. Dental x-ray machines operating 70 kVp or below: minimum 1.5 mm aluminum filtration - Dental x-ray machines operating above 70 kVp: minimum of 2.5 mm. of aluminum filtration.






38. Intersection of maxillary sinus and nasal cavity - radiopaque - cortical bone; above maxillary canine.






39. Time between exposure to ionizing radiation and the appearance of observable clinical signs.






40. Tube that travels length of mandible - radiolucent; has cortical walls - houses inferior alveolar nerve






41. The x-ray photon is deflected from its path during its passage through matter






42. Surrounded by genial tubercle - hole in bone near mandibular midline - radiolucent






43. Continues from ramus; radiopaque band






44. Hollow space - cavity that appears radiolucent






45. 68 Degrees F






46. Suggest that no matter how small the amount of radiation received - some biologic damage occurs.






47. Used to increase incoming voltage to 65 -000 to 100 -000 volts used by the high-voltage circuit.






48. Bump or nodule that appears radiopaque






49. V-shaped radiopacity at intersection of floor of nasal cavity and septum






50. Hole in bone below mandibular premolars - blood supply to lower lip exits here; radiolucent; often misdiagnosed for periapical pathology