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The enamel is fragile, the teeth appear yellow or brown, and surface stains build up more readily. [1] Dentinogenesis imperfecta is a defect of dentin formation, and the teeth may be discolored yellow-brown, deep amber or blue-grey with increased translucency. [1] Dentinal dysplasia is another disorder of dentin.
Melanin is then transferred to keratinocytes in melanosomes. Nevus cells in the skin and oral mucosa also produce melanin. Oral melanosis can present as black, gray, blue or brown lesions depending on the site and amount of melanin deposition in tissues. [12]
Since at least the mid-19th century, doctors have known that silver or silver compounds can cause some areas of the skin and other body tissues to turn grey or blue-gray. [9] [10] Argyria occurs in people who ingest or inhale silver in large quantities over a long period (several months to many years). People who work in factories that ...
Permanent (adult) teeth are not discoloured, or the discolouration is mild (grey colour). Little or no attrition (tooth wear) is evident. The crown of the teeth may be bulbous and markedly constricted at the cemento-enamel junction (CEJ). Radiographically, evidence of partial pulp obliteration with a "thistle-shaped appearance". [3]
Brushing your teeth twice a day every day, flossing regularly and swishing the right mouthwash are all vital dental habits that maintain your oral health.
Drug-induced pigmentation of the skin may occur as a consequence of drug administration, and the mechanism may be postinflammatory hyperpigmentation in some cases, but frequently is related to actual deposition of the offending drug in the skin. [2]: 125–6 The incidence of this change varies, and depends on the type of medication involved.
In some cases of pulp necrosis there is a yellow, grey or brown crown discolouration. Dark coronal discoloration is believed to be an early sign of pulp degeneration. [16] Teeth with said discolouration need to be treated with special care and further investigations are required before pulp necrosis can be diagnosed. [11]
Amalgam tattoo is a grey, blue or black area of discoloration on the mucous membranes of the mouth, typically on the gums of the lower jaw. It is a healthcare caused lesion, due to entry of dental amalgam into the soft tissues. It is common, painless, and benign, but it can be mistaken for melanoma