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==Description==  
 
==Description==  
 
Feline odontoclastic resorptive lesions (FORLs) are the most commonly seen dental lesions in cats. On examination, there is a loss of dental tissue on the [[Crown - Anatomy & Physiology|crown]] or at the neck of the teeth. The crown may be completely resorbed with the remaining root covered with [[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology|gingiva]].
 
Feline odontoclastic resorptive lesions (FORLs) are the most commonly seen dental lesions in cats. On examination, there is a loss of dental tissue on the [[Crown - Anatomy & Physiology|crown]] or at the neck of the teeth. The crown may be completely resorbed with the remaining root covered with [[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology|gingiva]].
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==Typical Signalment==
 
==Typical Signalment==
There are no sex or breed predispositions however it does become more prevalent with increasing age.
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There are no sex or breed predispositions, however, it does become more prevalent with increasing age.
 
      
==Diagnosis==
 
==Diagnosis==
   
===Clinical Signs===
 
===Clinical Signs===
 
Anorexia, drooling, lethargy and pain on contact with the lesions.
 
Anorexia, drooling, lethargy and pain on contact with the lesions.
    
===Oral Examination===
 
===Oral Examination===
   
Visual Examination will identify the lesions or inflammed gingiva that overlies the remaining root.
 
Visual Examination will identify the lesions or inflammed gingiva that overlies the remaining root.
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===Diagnostic Imaging===
 
===Diagnostic Imaging===
   
Radiographic signs of FORLs include erosion of alveolar bone at the cementoenamel junction, root resorption, root ankylosis and subsequent periodontal space loss and resorption of the dental crown.
 
Radiographic signs of FORLs include erosion of alveolar bone at the cementoenamel junction, root resorption, root ankylosis and subsequent periodontal space loss and resorption of the dental crown.
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==Pathology==
 
==Pathology==
Odontoclasts attack external and internal to the [[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology|tooth]]. Initially they start at the neck/cervical region and extend into [[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology|tooth]] [[Root - Anatomy & Physiology|root]] they also enter the root via the apical foramen (stage 3 lesions).
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Odontoclasts attack external and internal to the [[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology|tooth]]. Initially they start at the neck/cervical region and extend into [[Root - Anatomy & Physiology|tooth root]] they also enter the root via the apical foramen (stage 3 lesions).
 
Odontoclasts are 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 this is abnormal activation in adults.
 
Odontoclasts are 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 this is abnormal activation in adults.
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FORLs are different from [[Dental Caries|dental caries]] which is demineralization by bacteria fermenting Carbohydrate on the [[Enamel - Anatomy & Physiology|enamel]].  
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FORLs are different from [[Dental Caries|dental caries]] which is demineralization by bacteria fermenting carbohydrate on the [[Enamel - Anatomy & Physiology|enamel]].  
    
Additionally there may also be inflammatory infiltrates into the resportive lesions.
 
Additionally there may also be inflammatory infiltrates into the resportive lesions.
    
==Treatment==
 
==Treatment==
   
There are various treatment options available for the different stages of disease.
 
There are various treatment options available for the different stages of disease.
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'''Stage 2'''
 
'''Stage 2'''
Firstly a Scale and polish followed by restoration of the tooth using glass ionomer, compomer or composite (High failure rate.)
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Firstly a Scale and polish followed by restoration of the tooth using glass ionomer, compomer or composite (high failure rate.)
    
'''Stage 2-4'''
 
'''Stage 2-4'''
Extractions are necessary and also crown amputation whilst the retaining root.
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Extractions are necessary and also crown amputation whilst retaining the root.
    
'''Stage 5a'''
 
'''Stage 5a'''
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==References==
 
==References==
   
Tutt, C., Deeprose, J. and Crossley, D. (2007) '''BSAVA Manual of Canine and Feline Dentistry (3rd Edition)''' ''BSAVA''
 
Tutt, C., Deeprose, J. and Crossley, D. (2007) '''BSAVA Manual of Canine and Feline Dentistry (3rd Edition)''' ''BSAVA''
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[[Category:Teeth_-_Inflammatory_Pathology]][[Category:Cat]]
 
[[Category:Teeth_-_Inflammatory_Pathology]][[Category:Cat]]
 
[[Category:To_Do_-_Caz]]
 
[[Category:To_Do_-_Caz]]
[[Category:To_Do_-_Review]]
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[[Category:Expert_Review]]
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