Dentinogenesis imperfecta
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Dentinogenesis imperfecta is a disorder of tooth development. This condition causes teeth to be discolored (most often a blue-gray or yellow-brown color) and translucent. Teeth are also weaker than normal, making them prone to rapid wear, breakage, and loss. These problems can affect both primary (baby) teeth and permanent teeth. Dentinogenesis imperfecta is caused by mutations in the DSPP gene. This condition is inherited in an autosomal dominant fashion.[1]
Researchers have described three types of dentinogenesis imperfecta with similar dental abnormalities. Type I occurs in people who have osteogenesis imperfecta, a genetic condition in which bones are brittle and easily broken. Dentinogenesis imperfecta type II and type III usually occur in people without other inherited disorders. A few families with type II have progressive hearing loss in addition to dental abnormalities. Type III was first identified in a population in Brandywine, Maryland. Some researchers believe that dentinogenesis imperfecta type II and type III, along with a similar condition called dentin dysplasia type II, are actually forms of a single disorder.[1]
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Genetics Home Reference (GHR) contains a condition summary on Dentinogenesis imperfecta. Click on the link to go to GHR and review this summary.
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The National Organization for Rare Disorders (NORD) is a federation of more than 130 nonprofit voluntary health organizations serving people with rare disorders. Click on the link to view information on this topic.
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The Online Mendelian Inheritance in Man (OMIM) database contains genetics resources that discuss Dentinogenesis imperfecta. Click on the link to go to OMIM and review these resources.
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Orphanet is a database dedicated to information on rare diseases and orphan drugs. Access to this database is free of charge. Click on the link to read information on this topic.
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PubMed is a searchable database of medical literature and lists journal articles that discuss Dentinogenesis imperfecta. Click on the link to view a sample search on this topic.
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