Chapter 7 Review

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Across
  1. 5. duplicating films are used only in a _______ and is not exposed to x-radiation
  2. 9. Thin, transparent coating which is placed over the emulsion. It protects the emulsion from manipulation
  3. 10. these screens intensify the effect of x-rays on the film, and less radiation is required. A smooth plastic sheet coated with tiny fluorescent crystals
  4. 12. BW's used to examine the maxillary crown on a single film. Useful in diagnosing interproximal caries and bone level
  5. 17. Absorb radiation during x-ray exposure and store energy from the radiation
  6. 19. Unexposed and unprocessed film must be stored in a cool, _____ place (50-70 degrees F)
  7. 21. "end of a tooth"
  8. 23. means existing but not yet developed; hidden, concealed; something present but not yet visible
  9. 24. The stored energy within the silver halide crystals form a pattern and creates an invisible image on the emulsion. It remains invisible until the film is processed
  10. 25. Provides support for the emulsion and strength. Can withstand heat, moisture, and chemical exposure. Transparent exhibiting a slight blue tint which is necessary for image quality (think about the color of the film in Rad Lab)
  11. 28. are used to examine the teeth and supporting structures
  12. 29. Found behind the film shielding the film from scatter radiation which results in film fog
  13. 30. Produces identical copy of either an intraoral or extraoral radiograph used to send to insurance companies, referrals to specialists and for teaching aids.
  14. 33. A coating attached to both sides of the film base by the adhesive layer. Allows for greater film sensitivity to x-radiation
  15. 34. a client's mouth ______ should be considered when choosing a film size
  16. 35. which film choice is best used to determine delayed eruption in a child who has mixed dentition (ages 6-12)?
  17. 36. Evenly suspends silver halide crystals over the film base. Absorbs processing solutions allowing for the chemicals to react with crystals
  18. 38. Used to hold extraoral films and intensifying screens
  19. 39. the larger the crystals the ______ the film speed
  20. 40. Require a screen for exposure. Placed between two special intensifying screen in a cassette. Less radiation is required to expose the film
Down
  1. 1. Do not require intensifying screens for exposure. Exposed directly to x-rays. The emulsion on the film is sensitive to x-ray exposure rather than fluorescent light
  2. 2. A small bump found on the corner of the plastic film packet which aids in the identification of the patient’s right and left side; used for correct mounting
  3. 3. chemical compound sensitive to radiation or light
  4. 4. Has a flap used to open the film packet to remove the film before processing. Must always face the patients tongue
  5. 6. A thin layer of adhesive material covering both sides of the film base. Its like the glue for the emulsion
  6. 7. Amount of radiation required to produce a radiograph. Determines how much radiation and exposure time is necessary to produce an image on a film. Determined by: size of silver halide crystals, thickness of the emulsion and radiosensitive dyes
  7. 8. Found behind the film shielding the film from scatter radiation which results in film fog
  8. 11. Solid white and has identification dot (ID). - Must always face the teeth and x-ray tubehead.
  9. 13. "around"
  10. 14. classified as the standard film size which is generally used for posterior PA exposures on adult dentition
  11. 15. used in anterior BW
  12. 16. the larger the crystals the ______ the film speed
  13. 18. Something that responds to a stimulus
  14. 20. the (___same word__) the number, the (___same word__) the size of the film
  15. 22. a fast speed film requires _________ radiation exposure
  16. 26. Emulsion found on both sides of the film packet. May contain one film or two films (two for duplication)
  17. 27. Surrounds the film and helps protect the film from the light
  18. 29. Largest intraoral film. Used to examine the maxillary and mandibular arch
  19. 31. ______ storage containers prevent film-fogging
  20. 32. film size used when taking a BW of posteriors in adults when 8's are present
  21. 37. Refers to a picture of an object (tooth)