Английская Википедия:Burton's line
Материал из Онлайн справочника
Шаблон:Infobox medical condition
Burton's line, also known as the Burton line or Burtonian line, is a clinical sign found in patients with chronic lead poisoning. It is a very thin, black-blue line visible along the margin of the gums, at the base of the teeth.[1][2] It is caused by the reaction between circulating lead and sulphur ions produced by oral bacteria, forming deposits of lead sulfide in the gums.[3]
The sign was described in 1840 by Henry Burton:[4]
A similar line, the "bismuth line", occurs in people who have ingested bismuth compounds; bismuth, however, is of very low toxicity.
References
Шаблон:Med-sign-stub
Шаблон:Med-toxic-stub
