Feline
Oral Resorptive Lesion
Feline
Oral Resorptive Lesion: A
common feline oral malady which affects a majority of cats older
than four years. These tooth defects have also been called cavities,
neck lesions, external or internal root resorptions, and cervical
line erosions. The location of FORL is usually at the labial or
buccal surface of the cemento-enamel junction (CEJ) where the free
gingiva meets the tooth surface. The most common teeth affected
are the maxillary third and fourth premolars and the lower third
premolar and first molars, however FORLs can be found on any tooth.
The etiology is unknown, however theories supporting an autoimmune
response mediating cellular and humoral factors, calici virus, and
metabolic imbalances relating to calcium regulation have been proposed.
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