Metallic foreign body.
D002648:Child; D005260:Female; D005547:Foreign Bodies / Q000000981:diagnostic imaging*; D006801:Humans; D007180:Incisor / Q000000981:diagnostic imaging*; D011859:Radiography; D014094:Tooth, Deciduous / Q000000981:diagnostic imaging*; D014097:Tooth, Unerupted / Q000000981:diagnostic imaging*