A feline oral resorptive lesion (FOTL) is damage to the tooth itself in which at the least serious end of the spectrum involves the enamel being "barely" penetrated to loss of the "entire crown" of the tooth in the more serious cases1.
|Feline oral resorptive lesion, gingivitis, periodontal disease|
Photo copyright; Cuyahoga Falls Veterinary Clinic
Twenty-eight to sixty-seven percent of adult cats suffer from feline oral resorptive lesions1. The premolars and molars are normally affected but other teeth can be affected. Loss of the outer layer of enamel probably means pain for the cat. Sometimes cats chatter their jaws due to the pain. Some will lose appetite due to discomfort.
Siamese and Abyssinian cats (purebred cats - these are very popular cat breeds) are, it seems, predisposed to this oral health problem.
Causes? Periodontitis, exposure to viruses, kidney problems, dry cat food, acidic diet.
Treatment? See a good vet such as those at the Cuyahoga Falls Veterinary Clinic, who kindly provided the picture. This photo has been used with permission for teaching/educational purposes at this website.
Associated: Feline Gingivitis Picture.
Note: 1. Cat Owner's Home Veterinary Handbook. Pages 243-244. ISBN 978-0-470-09530-0