Practice Quiz

ADA NBDHE Dental Hygienist

Category - Provision of Clinical Dental Hygiene Services

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A radiographic film is bent while a clinician is attempting to open it for processing. As a result, the finished image has a diagonal black line across it.
What is this line called?
  1. Ghost image
  2. Landmark
  3. Artifact
  4. Fossa
Explanation
Answer: C - This line is called an artifact.
Artifacts are unwanted images in a finished x-ray which could result from an error in the manufacturing of the film or in the process of developing it. Over-manipulation of the film could also occur while bending the film to accommodate patient anatomy during placement.
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