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Dental Care in Cats
Revised: March 28, 2019
Published: June 27, 2002

Feline dental care is perhaps the most overlooked and under-treated area in small animal medicine. Cats are affected by many of the same dental problems that affect dogs, including periodontal diseases, fractured teeth, and oral growths. Cats are also plagued with tooth resorption and inflammation.

More than half of cats over three years old have tooth resorption(s) (TR). These tooth defects have also been called cavities, neck lesions, external or internal root resorptions, FORLs and cervical line erosions. Affected tooth roots often erode and disappear when they are replaced by bone. The lower third premolars and molars are most commonly affected; however, tooth resorptions can be found on any tooth. The specific cause for tooth resorption in cats (and dogs) is unknown, but theories supporting an autoimmune response have been proposed.

Cats affected with tooth resorption may show excessive salivation, bleeding in the mouth, or have difficulty eating. Tooth resorptions can be quite painful but many affected cats hide their pain. Most times it is up to the veterinarian to diagnose tooth resorption on oral examination with x-rays. Diagnostic aids include an explorer dental probe or cotton swab applied to the suspected resorption; when the probe touches the lesion, it causes discomfort and jaw spasms.

Treating a tooth resorption is extracting the affected tooth to bring relief.

Cats can also be affected by stomatitis, an inflammatory condition. The cause of this disease has not been determined but an immune-related cause is suspected. Signs in an affected cat include bad breath, difficulty swallowing, weight loss, and excessive salivation. X-rays often reveal moderate to severe periodontal disease with bone loss.

Managing a case of oropharyngeal inflammation can be challenging. Oftentimes attempts at conservative therapy are not affective, nor is medical care. Extracting specific or all the teeth resolves the syndrome in 60 percent of the cases. The remaining 40 percent require life-long medication to be comfortable. The carbon dioxide laser has also been used successfully in controlling inflammation after extraction in refractory cases.

Some cats have fractured teeth from cat fights and other forms of external trauma. The canines are most commonly affected. Fractured teeth are commonly sensitive because the nerve is exposed. Even if the nerve is not exposed the affected tooth can be sensitive. Root canal therapy or extraction generally brings relief.

Cats are also affected by cancer in their mouths. Squamous cell carcinoma is the most common type of oral cancer. Less common feline oral malignancies include melanoma, fibrosarcoma, lymphosarcoma, and undifferentiated carcinomas. Not all feline oral swellings are malignant Biopsies are essential for diagnosis.

Cats can be affected by many oral and dental conditions, which once diagnosed and treated are pain-free and happy bites.

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