Dentinogenesis imperfecta:[20] Dentinogenesis imperfecta is often a hereditary dentine defect, linked to osteogenesis imperfecta, which will cause the tooth to be discoloured ordinarily blue or brown in colour and translucent supplying teeth an opalescent sheen.[21] The ailment is autosomal dominant which implies which the problem operates while in the family. http://alicewemple.blogspot.com/2015/02/ter-et-bantine.html