Changes

==Aetiology==

==Aetiology==

The stimulus that initiates cystic change is unknown <ref name="Cawson">Cawson, Binnie, Barret, Wright (2001) '''Oral Disease''' 3rd Edition ''Mosby''</ref><ref name="Neville">Neville, B., Damm, D., Allen, C., Bouquot J. (2002) '''Oral and Maxillofacial Pathology.''' 2nd Edition ''Saunders''</ref><br>

The stimulus that initiates cystic change is unknown <ref name="Cawson">Cawson, Binnie, Barret, Wright (2001) '''Oral Disease''' 3rd Edition ''Mosby''</ref><ref name="Neville">Neville, B., Damm, D., Allen, C., Bouquot J. (2002) '''Oral and Maxillofacial Pathology.''' 2nd Edition ''Saunders''</ref><br>

The cyst develops as a result of fluid accumulation between the [[Enamel Organ#Crown|crown]] of the tooth and the retained epithelium. The cyst increases in size due to increased osmolarity as a result of the passage of inflammatory cells and desquamated epithelial cells into the cystic lumen. Influx of fluid along this osmotic gradient thereby creates centrifugal growth of the cyst. In human dentistry, dentigerous cysts frequently affect teeth that erupt late <ref name="Cawson" /><ref name="Neville" />. This does not seem to be the case in veterinary dentistry.

The cyst develops as a result of fluid accumulation between the [[Tooth - Anatomy & Physiology#Crown|crown]] of the tooth and the retained epithelium. The cyst increases in size due to increased osmolarity as a result of the passage of inflammatory cells and desquamated epithelial cells into the cystic lumen. Influx of fluid along this osmotic gradient thereby creates centrifugal growth of the cyst. In human dentistry, dentigerous cysts frequently affect teeth that erupt late <ref name="Cawson" /><ref name="Neville" />. This does not seem to be the case in veterinary dentistry.

==Clinical Signs==

==Clinical Signs==