Restorative & Materials · single question

Tooth #9 has a lingual composite restoration with darkening visible through the tooth beneath the restoration. What is the most likely cause?

  1. Normal dentin translucency
  2. Fluorosis of the underlying enamel
  3. Recurrent caries at the restoration interface
  4. Shade mismatch of the composite
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Correct answer: C. Recurrent caries at the restoration interface

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