Feline resorptive lesions (FRLs) are a common yet often underdiagnosed dental condition affecting cats. FRLs can significantly impact your cat’s quality of life, leading to tooth loss and chronic pain if left untreated. Our Cobb & Co Veterinary Clinic team explains FRLs, their causes, signs, treatment options, and preventive measures so you can be better prepared if your furry friend is diagnosed with them. 

What are feline resorptive lesions?

FRLs, also known as tooth resorptions, occur when a cat’s body starts breaking down and absorbing tooth structures. This process typically begins in a tooth’s root and can progress to the crown, causing significant discomfort and pain. The condition is prevalent in domestic cats, with studies suggesting that up to 60% of cats older than 6 years of age may develop FRLs.

Feline resorptive lesion causes 

Unfortunately, FRLs’ exact cause remains unclear, but several factors are believed to contribute. These factors include:

  • Genetic predisposition — Some purebred pets, mainly Siamese and Persian cats, have the highest FRLs rates compared with mixed or other breeds.
  • Inflammation — Chronic gingivitis and periodontal disease, both preventable, may trigger the resorptive process.
  • Immune system factors — An overactive immune response could destroy dental tissues, leading to FRLs.
  • Nutritional deficiencies — Dietary imbalances, particularly a lack of calcium and other essential minerals, might contribute to resorptive lesions. 

Feline resorptive lesion signs

Cats are adept at hiding pain and illness, and detecting dental issues early is challenging. However, keep an eye out for these signs:

  • Difficulty eating or reluctance to eat hard foods
  • Drooling excessively
  • Pawing at the mouth
  • Bleeding from the mouth
  • Bad breath
  • Changes in behavior such as irritability or reclusiveness
  • Weight loss

Diagnosing resorptive lesions in cats

Our Cobb & Co Veterinary Clinic veterinarian diagnoses FRLs through physical exams and diagnostic tests. Here’s what the process typically involves:

  • Visual and tactile oral exam — During your cat’s routine dental checkup, our team looks for lesions, gently probing their teeth.
  • Dental X-rays — Digital X-rays are crucial as they can reveal lesions that are not visible to the naked eye, especially those affecting the tooth roots.
  • Sedation and thorough dental exam — Administering anesthesia to your cat is necessary for our team to perform their comprehensive dental assessment, especially if your whiskered pal shows FRL signs but the lesions are not easily detected.

Treatment options for resorptive lesions in cats

Our team’s primary FRL treatment goal is to alleviate your furry friend’s pain and prevent further dental damage. Depending on the lesions’ severity, your cat’s treatment options include:

  • Dental extraction — Extractions are the most common and effective FRL treatment. Removing the affected teeth eliminates the pain source.
  • Root canal therapy — In some cases, especially when the tooth’s crown is still intact, a root canal might be an option to save the tooth.
  • Pain management — Our veterinarian often prescribes pain relief medications for your cat to manage discomfort before and after dental procedures.

Preventing feline resorptive lesions

While not all FRL cases can be prevented, specific measures can help reduce your whiskered pal’s risk and ensure early detection. Maintain your cat’s dental hygiene by following these tips: 

  • Wellness exams — Schedule annual or biannual wellness exams with our veterinarian so we can monitor any health changes in your whiskered friend.
  • Home dental care — Brush your cat’s teeth daily or several times a week using a cat-specific toothpaste and toothbrush.
  • Dental diets and treats — Consider feeding your cat a diet designed to promote dental health and providing dental treats that help clean their teeth. Ask our team for some recommendations.
  • Monitoring and intervention — Be vigilant about any changes in your cat’s eating habits or behavior, and make an appointment with our Cobb & Co Veterinary Clinic team promptly if you notice any dental discomfort signs.

The impact of untreated resorptive lesions in cats

Untreated FRLs can lead to severe pain, infection, and further dental complications. Chronic discomfort can also affect your cat’s appetite and overall health, potentially leading to weight loss and a weakened immune system. Therefore, prompt diagnosis and treatment are crucial to maintaining your cat’s quality of life.

FRLs are a significant dental issue that requires prompt attention. By understanding the causes, signs, and treatment options, you can take proactive steps to ensure your cat’s dental health. Regular veterinary care and diligent at-home dental hygiene can go a long way in preventing and managing this painful condition, Helping ensure that your feline friend remains happy and healthy. Is your cat exhibiting FRL signs? Schedule an appointment with our Cobb & Co Veterinary Clinic team so we can alleviate your furry friend’s discomfort.