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Feline Odontoclastic Resorptive Lesions (view source)

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*Merck & Co (2008) '''The Merck Veterinary Manual'''

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~~==From Pathology==~~

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*Cats

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**Odontoclasts attack external and internal to the [[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology|tooth]].

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**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)

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**20%+ of cats have them

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**Different from caries – demineralization by bacteria fermenting CHO on the [[Enamel - Anatomy & Physiology|enamel]].

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**ORLs – only occur when odontoclasts resorb the [[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology|tooth]]/bone

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***continues with remodeling of [[Alveolar bone - Anatomy & Physiology|alveolar bone]] until ankylosis

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*** 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.

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*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.

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*Can have inflammatory infiltrates into the resportive lesions

[[Category:Teeth_-_Inflammatory_Pathology]][[Category:Cat]]

[[Category:To_Do_-_Caz]]

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Feline Odontoclastic Resorptive Lesions (view source)

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