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Enamel may appear yellow/brown with discolouration and/or many pitted white-brown lesions similar to cavities. They are often described as "mottled teeth". [8] Fluorosis does not cause discolouration to the enamel directly, as upon eruption into the mouth, affected permanent teeth are not discoloured yet.
Congenital erythropoietic porphyria (Gunther disease) is a rare congenital form of porphyria, and may be associated with red or brown discolored teeth. [ 1 ] [ 12 ] Hyperbilirubinemia during the years of tooth formation may make bilirubin incorporate into the dental hard tissues, causing yellow-green or blue-green discoloration. [ 1 ]
Teeth displaying enamel hypoplasia lines, linear defects of enamel that form during crowns development as a result of periods of nutritional stress or disease during infancy and childhood Enamel hypoplasia is a risk factor for dental caries in children including early childhood caries (ECC), which continues to be a burden for many children.
This is referred to as a white spot lesion, an incipient carious lesion, or a "micro-cavity". [13] As the lesion continues to demineralize, it can turn brown but will eventually turn into a cavitation ("cavity"). Before the cavity forms, the process is reversible, but once a cavity forms, the lost tooth structure cannot be regenerated. A lesion ...
However, the position on the crown, the tooth type and the cause of the disruption are all likely contributing factors. It has been suggested that because it is relatively rare to have both linear enamel hypoplasia and PEH, these types of defects may be commonly caused by different factors. [5]
Since 1920, various derivatives of "chalky teeth" have appeared in the academic literature to describe specific dental anomalies. Most references are to enamel defects that have a chalky appearance (white, cream or brown) and are of developmental origin (i.e. amelogenesis imperfecta, enamel hypomineralisation, dental fluorosis, molar hypomineralisation).
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This condition can cause teeth to be discolored (most often a blue-gray or yellow-brown color) and translucent, giving teeth an opalescent sheen. [2] [3] [8] [5] [9] Teeth are also weaker than normal, making them prone to rapid wear, breakage, and loss.