Lead line in the gums of a patient with occupational lead poisoning
Lead line in the gums of a patient with occupational lead poisoning
This photograph shows a "lead line" in the region between the teeth and gingiva of a patient with lead poisoning due to occupational exposure (automobile radiator repair). The dark areas (arrows) represent deposition of insoluble lead following interaction with sulfur-containing metabolites produced by bacteria in these gingival pockets.