When amalgam particles become imbedded under oral membranes, it is a/an?
  1. Silver deposit
  2. Silver tattoo
  3. Amalgam tattoo
  4. Amalgam deposit
Explanation

Answer: C - When amalgam particles become imbedded under oral membranes, it is an amalgam tattoo. If particles can be seen radiographically, there is no treatment needed. If particles cannot be seen radiographically, than biopsy must be done to rule out oral cancer and melanocytic neoplasia.
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