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    Tooth Resorption in Cats — When Good Cells Go Bad!

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    Updated: October 30, 2017

    Your pets — especially your cats — are susceptible to a painful dental condition called tooth resorption

    In this condition the multiple surfaces of a tooth are systematically destroyed (resorbed — "broken down and dissolved back into the body") by the cells of your pet's own body. The cells that are responsible for this destruction are called odontoclasts. These cells have a normal and healthy function within the body, but for some reason, in this disease state, they begin to exert their resorptive function in an abnormal way — resulting in the destruction of an otherwise apparently healthy and normal tooth (or teeth).

    Signs your cat's tooth might be resorbing

    Often times these resorptive lesions aren't immediately obvious in your cat's mouth. Often they appear as a lighter pink area in the enamel surface of a tooth, sometimes you'll see that the gingiva ("gums") near the affected tooth has grown up onto the tooth surface to cover over the area of resorbed enamel. Frequently pet owners don't notice anything abnormal on their cat's teeth, or even anything obvious in their behavior. Sometimes they just notice that their cat maybe has started excessively salivating, has gone off their food, or perhaps they notice their teeth chattering. These are all potential signs of pain in cats, which could be related to their teeth or to any one of several other areas of their body. Find out more about what causes pain in cats.

    Estimates suggest that approximately 60–75% of cats over 5 years old will develop at least one resorptive dental lesion in their lifetime. Tooth resorption in cats is very common!

    The gradual, subtle, and painful nature of these lesions underscores the importance of paying attention to your cat's dental health, and of bringing them for regular dental evaluations with your veterinarian. It also underscores the importance of anesthesia in pet dental care and the taking of dental x-rays, both to allow full evaluation and care of the tooth and associated structures below the gumline.

    It's also important to note that cats who develop one resorptive lesion are unfortunately at high risk of developing additional ones, too.

    For more information on feline tooth resorption check out this article by Dr. Dale Kressin, a board-certified specialist in veterinary dentistry based in Wisconsin. And please, if your pets — both cats and dogs — haven't been in for a dental evaluation (and cleaning, if necessary) with your veterinarian recently, please take the time to bring them in soon. After all, February is National Pet Dental Health Month and resorptive lesions aren't the only problem affecting the dental and overall oral health of cats and dogs. And most of these conditions, including resorptive lesions, can only be seen, fully evaluated, and properly treated by your veterinarian.

    Topics: Cat Health, cat health issues, Cats, Blog, Tooth problems, Excessive drooling, Tooth absorption, Dental for cats

    Please do not ask emergency or other specific medical questions about your pets in the blog comments. As an online informational resource, Preventive Vet is unable to and does not provide specific medical advice or counseling. A thorough physical exam, patient history, and an established veterinary-patient-client relationship is required to provide specific medical advice. If you are worried that your pet is having an emergency or if you have specific medical questions related to your pet’s current or chronic medical conditions, please contact or visit your veterinarian, an animal-specific poison control hotline, or your local emergency veterinary care center.

    Please share your experiences and stories, your opinions and feedback about this blog, or what you've learned that you'd like to share with others.