| ulceromembranous gingivitis | An acute or recurrent gingivitis of young and middle-aged adults characterised clinically by gingival erythema and pain, fetid odour, and necrosis and sloughing of interdental papillae and marginal gingiva which gives rise to a gray pseudomembrane; fever, regional lymphadenopathy, and other systemic manifestations also may be present. A fusiform bacillus and Treponema vincentii can be isolated from the gingival tissues in large numbers and are felt to play a significant but poorly defined role in the pathogenesis. Synonym: fusospirochetal gingivitis, trench mouth, ulceromembranous gingivitis, Vincent's disease, Vincent's infection. (05 Mar 2000) |
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| fusospirochetal gingivitis | An acute or recurrent gingivitis of young and middle-aged adults characterised clinically by gingival erythema and pain, fetid odour, and necrosis and sloughing of interdental papillae and marginal gingiva which gives rise to a gray pseudomembrane; fever, regional lymphadenopathy, and other systemic manifestations also may be present. A fusiform bacillus and Treponema vincentii can be isolated from the gingival tissues in large numbers and are felt to play a significant but poorly defined role in the pathogenesis. Synonym: fusospirochetal gingivitis, trench mouth, ulceromembranous gingivitis, Vincent's disease, Vincent's infection. (05 Mar 2000) |
| leukaemic hyperplastic gingivitis | Enlarged gingiva due to infiltration of leukaemic cells and infection from local factors in the face of diminshed host response. (05 Mar 2000) |
| aluminum bismuth oxide | A gastric antacid. Synonym: aluminum bismuth oxide. (05 Mar 2000) |
| bismuth | <chemistry> One of the elements; a metal of a reddish white colour, crystallizing in rhombohedrons. It is somewhat harder than lead, and rather brittle; masses show broad cleavage surfaces when broken across. It melts at 507 deg Fahr, being easily fused in the flame of a candle. It is found in a native state, and as a constituent of some minerals. Specific gravity 9.8. Atomic weight 207.5. Symbol Bi. Chemically, bismuth (with arsenic and antimony is intermediate between the metals and nonmetals; it is used in thermo-electric piles, and as an alloy with lead and tin in the fusible alloy or metal. Bismuth is the most diamagnetic substance known. Bismuth glance, bismuth sulphide; bismuthinite. Bismuth ocher, a native bismuth oxide; bismite. Origin: Ger. Bismuth, wismuth: cf. F. Bismuth. Source: Websters Dictionary (01 Mar 1998) |
| bismuth aluminate | A gastric antacid. Synonym: aluminum bismuth oxide. (05 Mar 2000) |
| bismuth ammonium citrate | Ammoniocitrate of bismuth; an intestinal astringent. (05 Mar 2000) |
| bismuth carbonate | (BiO)2CO3;used for the same purposes as bismuth subnitrate, but has lower toxicity. Synonym: bismuth carbonate, bismuth oxycarbonate, bismuthyl carbonate. (05 Mar 2000) |
| bismuth chloride oxide | BiOCl;basic bismuth chloride, used for the same purposes as the subnitrate. Synonym: bismuth chloride oxide, bismuthyl chloride. (05 Mar 2000) |
| bismuth citrate | Used in the making of bismuth and ammonium citrate. (05 Mar 2000) |
| bismuth hydroxide | (Bi(OH)3), used in detecting reducing sugars. (05 Mar 2000) |
| bismuth iodide | BiI3;used in electron microscopy to reveal synapses. Synonym: bismuth triiodide. (05 Mar 2000) |
| bismuth line | A black zone on the free marginal gingiva, often the first sign of poisoning from prolonged parenteral administration of bismuth. (05 Mar 2000) |
| bismuth oxide | Bi2O3;used for the same purposes as the subnitrate. (05 Mar 2000) |
| bismuth oxycarbonate | (BiO)2CO3;used for the same purposes as bismuth subnitrate, but has lower toxicity. Synonym: bismuth carbonate, bismuth oxycarbonate, bismuthyl carbonate. (05 Mar 2000) |