Cervical Line Lesions (Feline Odontoclastic Resorptive Lesions)

Cats do not develop cavities like those seen in humans. However, they may develop cervical line lesions, also called feline odontoclastic resorptive lesions. In fact, these are the most frequently seen dental abnormality in cats. The cause is unknown, but the condition results in the breakdown and loss of tooth material and is often associated with bright red gum inflammation. The crown of the tooth may be completely lost, with the root that is left covered over by the gum. Signs associated with cervical line lesions include pain on contact, loss of appetite, drooling, and generally not feeling well.

The condition is not thought to be contagious. Mouth infections may develop because of tooth loss, however. Damage to the roots of the teeth can be detected with x-rays of the jaws. In most cases, affected teeth will need to be extracted. Techniques to restore the teeth yield only fair success rates, except for very early cases.

The Merck/Merial Manual for Pet Health. Copyright© 2007 by Merck & Co., Inc.,
Whitehouse Station, NJ, USA. All rights reserved.