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Free DANB Radiation Health and Safety Exam (RHS) Mock Exam
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Question 1 of 10⏱ 08:00
A dentist asks an assistant to review a bitewing of a patient who has an old amalgam in a mandibular molar. The image shows a thin dark crescent just under the proximal margin of the restoration, following the edge of the amalgam. The patient reports no symptoms. How should the assistant describe this area?
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