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Feline Odontoclastic Resorptive Lesions (view source)
Revision as of 10:12, 28 June 2010
, 10:12, 28 June 2010no edit summary
*Merck & Co (2008) '''The Merck Veterinary Manual'''
*Merck & Co (2008) '''The Merck Veterinary Manual'''
==From Pathology==
*Cats
**Odontoclasts attack external and internal to the [[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology|tooth]].
**Initially start at the neck/cervical region and extend into [[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology|tooth]] [[Root - Anatomy & Physiology|root]] and also enter the [[Root - Anatomy & Physiology|root]] via the apical foramen (stage 3 lesions)
**20%+ of cats have them
**Different from caries – demineralization by bacteria fermenting CHO on the [[Enamel - Anatomy & Physiology|enamel]].
**ORLs – only occur when odontoclasts resorb the [[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology|tooth]]/bone
***continues with remodeling of [[Alveolar bone - Anatomy & Physiology|alveolar bone]] until ankylosis
*** fixation of [[Periodontal ligament - Anatomy & Physiology|periodontal ligament]] and [[Lamina dura - Anatomy & Physiology|lamina dura]] so that the [[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology|tooth]] is permanently fixed to the bone.
*Odontoclasts normally only active in young animals to resorb the [[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology#Temporary Tooth|deciduous teeth]] to make way for the [[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology#Permanent Tooth|permanent teeth]] – so represents abnormal activation in adults.
*Can have inflammatory infiltrates into the resportive lesions
[[Category:Teeth_-_Inflammatory_Pathology]][[Category:Cat]]
[[Category:To_Do_-_Clinical]]