metallic stain

me·tal·lic stain

(mĕ-talik stān)
Dental discolorations generally caused by orally inhaling metal-containing dust or by ingestion of some orally administered medications.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
The blue-black metallic stain present on the teeth and within the internal structure of the bone suggests that material from the depositional environment had infiltrated both bone and teeth.
An eight-foot couch and oversized chair are both framed in wood glazed in a pewter metallic stain and covered in oatmeal chenille.