Decay under amalgams and underdiagnosing.
D003723:Dental Amalgam; D003731:Dental Caries / Q000175:diagnosis* / Q000209:etiology; D003732:Dental Caries Activity Tests; D003793:Dental Restoration, Permanent / Q000009:adverse effects; D005188:False Negative Reactions; D006801:Humans; D019233:Retreatment