Teeth are brownish black
Introduction
Introduction The color of the teeth changed abnormally and appeared brownish black. Coloration in the teeth is the discoloration of the teeth caused by the tissue structure or nutrient change of the teeth. Common necrosis of the pulp, enamel enamel and drug deposition cause tooth discoloration. The center of the tooth has pulp, including the nutrition and metabolism of the supplied teeth such as blood vessels and nerves. If the nutrition of the tooth changes or the nutrition is cut off, the tooth will change color. Coloring outside the teeth means that the surface of the teeth is pigmented. Such as smoking, drinking, drinking tea, the pigment in the diet and saliva mixed and attached to the surface of the teeth, especially the occlusal surface of the teeth, the groove of the lips and the tongue, the depression of the socket is more prone to pigmentation, then the surface of the tooth turns brown , yellow, gray or blue-green.
Cause
Cause
The cause of brownish black teeth
Tooth discoloration is divided into two types: inner coloring and outer coloring:
Coloration in the teeth is the discoloration of the teeth caused by the tissue structure of the teeth or the change in nutrition. Common necrosis of the pulp, enamel enamel and drug deposition cause discoloration of the teeth. Normal teeth from the longitudinal section of the crown surface is covered by a layer of milky white, translucent, shiny and particularly hard structure, which has the effect of protecting the teeth, because it is very similar to magnetic glaze, so it is called enamel. Inside the enamel is a layer of pale yellow thick dentin that forms the main body of the tooth. The center of the tooth has pulp, including the nutrition and metabolism of the supplied teeth such as blood vessels and nerves. If the nutrition of the tooth changes or the nutrition is cut off, the tooth will change color.
Coloring outside the teeth means that the surface of the teeth is pigmented. Such as smoking, drinking, drinking tea, the pigment in the diet and saliva mixed and attached to the surface of the teeth, especially the occlusal surface of the teeth, the groove of the lips and the tongue, the depression of the socket is more prone to pigmentation, then the surface of the tooth turns brown , yellow, gray or blue-green. People with long-term exposure to iron and sulfur due to occupational relationships may have brown pigmentation. Long-term exposure to mercury can have black pigmentation on the tooth surface. Long-term contact with copper, nickel, and chromium tooth surfaces can have green pigmentation.
Examine
an examination
Related inspection
Oral endoscopic oral X-ray examination
The teeth are brownish black
Discoloration of the teeth caused by pulp necrosis: If the teeth are traumatized, the pulp will be hemorrhagic, necrotic, and the teeth will turn dark red, brown or blue-gray.
Spotted enamel: commonly known as yellow scalp, drinking more than 1 in 1 million water per liter of water before the age of 5 will cause calcification and discoloration in the structure of the enamel. Light spotted enamel, white enamel or yellow-brown plaque on the surface of the enamel; severe tooth surface roughness, uneven yellow-brown, or even black, the teeth are crisp and fragile, and the treatment is more complicated. Light spot enamel doctors use dilute hydrochloric acid to rub the macular area to discolor, which can make the macula shallow, but pay attention to protect the gums when applying the medicine to prevent corrosion and burns. Heavier enamel enamel can restore the shape and appearance of the tooth with "plastic tooth veneer" or "light curing composite resin".
Drugs cause discoloration of the teeth: the mother's late pregnancy or children less than 5 years old, taking more tetracycline, oxytetracycline antibiotics combined with calcium to form a yellow or off-white tetracycline, earth toxins antibiotics combined with calcium to form a yellow or grayish white tetracycline calcium The complex, deposited in the structure of the enamel and dentin through the pulp, causes the teeth after eruption to turn yellow, dark gray or dark brown. The precautionary measure is to take as little as possible of tetracyclines. At present, tetracyclines in children have been included in the elimination of drugs.
Diagnosis
Differential diagnosis
The teeth are brownish black and confusing.
1. Yellowing of teeth: caused by various reasons, the teeth appear yellow.
2. Abnormal color of teeth: Because the surface of the tooth is covered with a layer of enamel, it is transparent or translucent, and its deep part is dentin, which is pale yellow. The color of the teeth is related to the degree of calcification of the enamel. The higher the degree of calcification, the more transparent the enamel is, and the true color of the deep dentin through it makes the teeth pale yellow, and the color of the teeth is abnormal in various dental diseases.
3. Teeth dark spots: Some people drink or eat foods that are easy to dye for a long time, or long-term exposure to certain minerals, such as long-term use of potassium permanganate water to gargle, silver nitrate treatment of oral diseases can be exposed to mercury. Both can make the teeth black. Contact with iron, sulfur and other substances, it is easy to make the teeth appear black and green. In addition, enamel hypoplasia, dentin hypoplasia, hereditary opal teeth, dental fluorosis, tetracycline teeth, dental caries, etc. can make the teeth yellow, brown, black.
4. The teeth are yellowish light gray or dark gray: The clinical manifestations of tetracycline teeth are yellowish light gray or dark gray. Generally, the anterior teeth are more colored than the posterior teeth than the permanent teeth. In severe cases, there is enamel dysplasia.
