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Abnormal Teeth, continued
Tooth Color
Abnormalities in tooth color can result from a number of causes. Food pigments may stain the teeth, although these changes should be temporary. Smoking can also discolor the teeth. Excess fluoride intake can cause a range of color changes from a lacy, chalky white discoloration to severe brown staining of the teeth. (Refer to Chapter 6: Fluoride for more information).

In addition, nerve necrosis secondary to trauma or severe caries results in grayish tooth discoloration. Tetracycline use by a pregnant mother in the second half of pregnancy or by a child early in life may cause an abnormal darkening of the teeth. Oral iron supplementation can also lead to dark discoloration that sometimes requires a dentist’s assistance for removal.

High fevers during tooth formation can cause tooth discoloration or lines in the teeth. Other medical problems that can lead to tooth discoloration include
porphyria: Abnormalities of porphyrin metabolism characterized by excretion of excess porphyrins in the urine and by extreme sensitivity to light; usually hereditary .
Hyperbilirubinemia: The presence of an excess of bilirubin in the blood.
hyperbilirubinemia and
Amelogenesis Imperfecta: Faulty development of tooth enamel that is genetically determined.
amelogenesis imperfecta. Poor oral hygiene can also lead to caries and discoloration of the teeth.
Excess fluoride intake can result in a chalky white or severe brown discoloration of the teeth.
Root death from trauma or severe caries causes a grayish discoloration of the teeth.
Food pigments, smoking, oral iron supplements, and poor oral hygiene can all discolor the teeth.
Tooth discoloration should be evaluated by a dentist to determine the likely cause and if treatment or prevention exists.
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