Changes

'''Generalised enamel dysplasia''' - Historically, the most common cause of enamel dysplasia was [[Distemper|distemper virus]] - the virus caused a febrile reaction which affected the developing tooth, but it is also an epitheliotropic virus, affecting developing epithelium, from which ameloblasts originate. Virus particles have been demonstrated in the actual ameloblasts. Other causes of generalised enamel dysplasia usually result from a febrile reaction, and, in rare cases [[Hypocalcaemia|hypocalcaemia]], excessive fluoride ingestion and nutritional deficiencies. There have been case reports of dysplasia associated with [[:Category: Kidney - Developmental Pathology|congenital renal disease]].

'''Generalised enamel dysplasia''' - Historically, the most common cause of enamel dysplasia was [[Distemper|distemper virus]] - the virus caused a febrile reaction which affected the developing tooth, but it is also an epitheliotropic virus, affecting developing epithelium, from which ameloblasts originate. Virus particles have been demonstrated in the actual ameloblasts. Other causes of generalised enamel dysplasia usually result from a febrile reaction, and, in rare cases [[Hypocalcaemia|hypocalcaemia]], excessive fluoride ingestion and nutritional deficiencies. There have been case reports of dysplasia associated with [[:Category: Kidney - Developmental Pathology|congenital renal disease]].

'''''Amelogenesis imperfecta''''' - A term often incorrectly used in veterinary dentistry to mean any condition resulting in enamel dysplasia. ''Amelogenesis imperfecta'' is a hereditary condition of humans in which the genes that encode for enamel proteins (amelogenin, enamelin and others) are mutated. Most cases are inherited as an autosomal-dominant trait. The condition affects both the primary and secondary dentition. One study of enamel defects in standard poodles in Sweden confirmed histologically that ''Amelogenesis imperfecta'' is a common cause of discoloured teeth in standard poodles <font color="red">(Mannerfelt, 2009)</font color>. This report is the first report to describe the condition in dogs.

'''''Amelogenesis imperfecta''''' - A term often incorrectly used in veterinary dentistry to mean any condition resulting in enamel dysplasia. ''Amelogenesis imperfecta'' is a hereditary condition of humans in which the genes that encode for enamel proteins (amelogenin, enamelin and others) are mutated. Most cases are inherited as an autosomal-dominant trait. The condition affects both the primary and secondary dentition. One study of enamel defects in standard poodles in Sweden confirmed histologically that ''Amelogenesis imperfecta'' is a common cause of discoloured teeth in standard poodles <ref>Mannerfelt, T. (2009) '''Enamel defects in standard poodle dogs in Sweden. '''''Journal of Veterinary Dentistry ''26(4).</ref>. This report is the first report to describe the condition in dogs.

====Clinical Significance====

====Clinical Significance====

File:Extra tooth root 2.jpg|Extra root

File:Extra tooth root 2.jpg|Extra root

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{{Learning

{{Learning

[[Category:Developmental Dental Conditions]]

[[Category:Developmental Dental Conditions]]

[[Category:To Do - Dentistry questions]]

[[Category:Waltham reviewing]]

[[Category:To Do - Mars Check]]