Unit 314 - Dental radiography 1

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1. What is the reason for the exposure fault "foreshortening of the image"?

  • Collimator angulation too shallow
  • Film placed wrong way round to collimator for exposure
  • Collimator angulation too steep
  • Collimator angulation is not central
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2. What is the reason for the exposure fault "fogged film"?

  • Collimator angulation is not central
  • Exposed to light before exposure
  • Patient moved during exposure
  • Film placed wrong way round to collimator for exposure

3. What quality score would be given to a radiograph that wasn't as dark as usual due to chemicals becoming spent, but was still readable?

  • 3
  • 4
  • 2
  • 1

4. If a film which had been developed showed severe angulation faults what quality grade would it be given?

  • 3
  • 1
  • 2
  • 4

5. What are extraoral cassettes marked with?

  • The letter L
  • The letter R
  • The letters LR
  • The letters LL
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