The surface layer of our teeth white, shiny and translucent structure is particularly hard enamel, which has a layer of enamel thick yellow dentin structure, the center of tooth pulp, including blood vessels, nerves and other supplies nutrition and metabolism of teeth, if teeth have changed nutrition or nutrition, cut off, the teeth will be infected with color.
Yellow teeth black so what is the reason? Dental Center Dental experts made the following description:
1. Spot enamel teeth: commonly known as macular teeth, drinking before the age of 5 in the amount of fluoride per liter of water more than 1 / 100 million or more of water, would make the structure of enamel calcification and poor color. Light spot tooth enamel, the enamel surface with chalk or yellow-brown color patches; severe tooth surface rough, uneven was dental equipment brown, even black, wearing crisp dental treatment more complex.
2. Pulp necrosis: such as dental pulp caused by trauma, hemorrhage, necrosis, loss of teeth, the supply of nutrients, it will become dark red, brown or gray.
3. Certain drugs: the end of pregnancy the mother or children less than 5 years old, taking more of tetracycline, oxytetracycline antibiotics combined with calcium to form calcium-tetracycline yellow or gray compound, after the pulp deposited on the structure of enamel and dentin , so that after the eruption of the teeth turn yellow, dark gray or dark brown.
Dental experts advise: In addition to the teeth of nutrient delivery by the fallout of the tooth color, the professional tooth color and had a great relationship, such as long-term exposure to iron and sulfur were the tooth surface may have brown pigmentation; long-term Bleaching method exposure to mercury tooth surface may have black pigmentation; long-term exposure to copper, nickel, chromium can have green teeth pigmentation; in addition, the teeth color with smoking, drinking, tea and other factors.
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