Basically green tea is the least processed of four different types of tea; green, oolong, black and white, all of which come for the Camellia sinensis bush. Unlike the other tea variants, green tea leaves are steamed. Processing them in this way preserves the compound epigallocatechin gallate (EGCG), which is a powerful antioxidant that gives green tea many of its health properties.
Evidence indicates that periodontal disease is an autoimmune disorder triggered by infectious organisms and an abnormal immune response to collagen. Periodontal disease is an inflammatory condition affecting both the gums and the deep structures that house the roots of the teeth.eriodontal disease can cause the teeth to loosen and decay. Individuals with periodontal disease may experience bleeding of the gums when brushing, which is often the first sign of a problem. The gums may also appear swollen and recede away from the teeth.
Infection in the mouth and gingivitis, or gum disease, are localised causes but there might be an underlying more general cause, such as pregnancy causing hormonal changes, or an illness such as kidney stones, heart failure, diabetes or cancer. Toxicity from a poison such as lead or mercury is another possibility. common cause is from bleeding, because the pigment in red blood cells contains iron. If you bite your tongue by accident, suffer trauma to the mouth, or have gum disease which can cause spontaneous bleeding from inflamed gums, then you will likely have a metal taste for a while, or notice it now and again.