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== Introduction ==
This condition is a consequence of abnormalities occuring during the period of tooth eruption. It invloves damage to [[Enamel Organ#Ameloblasts|ameloblasts]] (which form [[Enamel Organ#Enamel|enamel]]) in utero, which upsets permanent incisor formation. The condition [[Enamel Organ#Enamel|Enamel]] is marked by pits and lines etc.
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In ruminants damage to [[Enamel Organ#Enamel|enamel]] formation most often caused by fluoride poisoning and is seen in cattle grazing on pasture contaminated by cement works effluent.
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In dogs, [[Image:enamal-hypoplasia.gif|right|thumb|125px|<small>Enamal hypoplasia may occur following a Canine Distemper Virus (CDV) infection during tooth development (Courtesy of Alun Williams (RVC))<center></center></small>]]. This is a very severe systemic disease seen early in life or in utero in dogs.
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== Clinical Signs ==
In ruminants, one will see a chalky mottling and yellow brown pitting of [[:Category:Teeth - Anatomy & Physiology|tooth]], due to enamel hypoplasia. There is usually no difficulty in mastication detected and the animal is clinically well.
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In dogs, CDV causing enamel hypoplasia, may result in severe discoloration or pitting of teeth due to effect on [[Enamel Organ#Enamel|enamel]] formation. (e.g. [[Canine Distemper Virus|distemper in dog]])
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== Diagnosis ==
Clinical signs are diagnositc, plus history e.g. of CDV in dogs, fluoride in cattle.
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== Treatment and Control ==
There is no treatment for this condition. Control measures are prevention of the casues of the disease, e.g. vaccination against CDV and prevention of fluoride poisoning in cattle.
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== References ==
Tutt, C., Deeprose, J. and Crossley, D. (2007) BSAVA Manual of Canine and Feline Dentistry (3rd Edition), British Small Animal Veterinary Association.
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Williams, A (2008) Alimentary System Study Guide, Royal Veterinary College.
[[Category:Teeth - Degenerative Pathology]]
[[Category:Teeth - Degenerative Pathology]]
[[Category:Oral Diseases - Cattle]][[Category:Oral Diseases - Dog]]
[[Category:Oral Diseases - Cattle]][[Category:Oral Diseases - Dog]]
[[Category:To_Do_-_Clinical]]
[[Category:To_Do_-_Review]]