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an abnormal oral condition caused by the systemic use of bismuth compounds over prolonged periods. It is characterized by a blue-black line on the inner aspect of the gingival sulcus or dark pigmentation of the buccal mucosa, sore tongue, metallic taste, and burning sensation in the mouth. Compare arsenic stomatitis, atabrine stomatitis.
bis·muth sto·ma·ti·tis(bizmŭth stōmă-tītis)
Inflammation of the oral cavity, especially the gingiva, due to deposition of bismuth in gingival tissues.The gingival margins discolor darkly.