Feline resorptive lesions, also called odontoclastic resorptive lesions, are similar to cavities. These lesions are erosions of the tooth and occur at or near the cementoenamel junction, at the base of the tooth. The cause of the lesions is unknown and they are quite common in cats, with reports as high as 67 percent of felines being afflicted. The most commonly affected breeds are the Siamese, Abyssinian and Persian.

The incidence of resorptive lesions tends to increase as the cat ages. These lesions are most often found on the molars and premolars and are placed into one of four stages. Stage one is an early small lesion that is often undetected and doesn’t cause any pain. Stage two is associated with some discomfort and the lesions have not yet invaded the pulp cavity. Stage three lesions extend to the pulp cavity and cause pain. Stage four is the most advanced and the tooth roots are completely altered by erosion.

Diagnosis and Treatment Notes:

  • Feline resorptive lesions are generally diagnosed with a thorough history and physical examination, including a thorough oral exam.
  • Treatment depends on the severity of the disease, your individual pet, and your veterinarian. Pets with feline resorptive lesions usually benefit initially from a dental cleaning and polishing. If this is not effective, removal of the tooth is performed. Discuss treatment details when your pet is diagnosed with this condition.

What to Watch for*:

  • Mouth pain
  • Poor appetite
  • Change in eating behavior
  • Change in food preference from dry to soft food

*Please notify us if you notice any of the above signs or if you have any questions!

Dear Valued Clients

During these challenging times, there have been some unforeseen changes at The Big Easy Animal Hospital. I cannot express enough my sincere apology for any inconvenience you have experienced at The Big Easy during these times. As we strive to make the practice safe to protect everyone including you, your family, and our Big Easy team and their families, I’ve decided to make certain changes while we are under this pandemic. These changes will be temporary.


Monday, Tuesday, Thursday & Friday:
Walk Ins: Check-in starts at 9:45am.There are a limited amount of patients we can accept. Our receptionists will be happy to assist you with options to help guide you and your pet(s).)


Saturday Hours

Saturdays will be TECHNICIAN APPOINTMENTS only. These will include boosters, bloodwork, nail trims, certain diagnostics, etc. There will not be a veterinarian on site. While I understand these changes can be inconvenient, I have listed local veterinary clinics that we have contacted and are open to see walk-ins throughout the week and Saturdays as well. For life threatening emergencies that occur outside business hours, please contact the following 24-hour animal hospitals below.

Please, be safe and healthy.

Thank you all for your understanding. -Aileen Ruiz, DVM


24 Hour Emergency Care:


Pittsburgh Veterinary Specialty and Emergency Center

807 Camp Horne Road
Pittsburgh, PA



4224 Northern Pike
Monroeville, PA

VCA Castle Shannon Animal Hospital

3610 Library Road
Pittsburgh, PA

Veterinarians Accepting Walk in Care:

Penn Animal Hospital

2205 Penn Avenue

North Boros Veterinary Hospital

2255 Babcock Blvd



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