Teeth black, hard to say, perhaps in front of the public to bring you a lot of inconvenience in life, as for the teeth will be black? Black teeth mainly caused by the following four reasons.
1. Teeth black outside: long-term habit of drinking coffee, tea, cola and other dark-colored diet will make the teeth yellow, black. Others, such as smoking, chewing betel nut and other bad habits will cause discoloration over time of deep pigment deposited on the surface of the teeth, and even penetrate into the tooth enamel internal.
2. Tooth internal black discoloration of the teeth: the most common to tetracycline class of antibiotics. These drugs affect the dental tissue and cause permanent discoloration of the tooth development process of calcification. Fetus from the mother to eight-year-old children will be the impact of this drug. Teeth in the light turn yellow grayed out entire pieces of the severe cases, teeth becomes black, depending on the degree of discoloration taking this medication depends on the size dental equipment and the length of the take during different. In addition, often semi-synthetic tetracycline for the treatment of severe acne in adolescents or adults teeth generates development has been completed, will cause discoloration, not careless. Others, such as the ingestion of fluoride and other substances in excess can also cause discoloration of the teeth.
3. Cavities make the teeth, gray, and black: Everyone knows termite broken teeth will be black. In addition, the old filling material or improper root canal treatment can also cause tooth discoloration.
4. Aging can also cause black teeth: tooth enamel with age and thinning gradually lost transparency relative to the inner yellow dentin thickness to make the teeth Wisdom is to pull or not pull more yellow, which is why we always want teeth whitening, the Youth Wing in.
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