Can Cats Get Cavities? The Surprising Answer
The short answer is: yes, cats can get cavities — but they are much rarer in felines than in humans or dogs. Feline cavities, technically called feline odontoclastic resorptive lesions (FORL) or simply cat tooth decay, affect approximately 20-60% of cats over the age of five, depending on the study. Understanding the difference between a cavity and other feline dental problems is essential for protecting your cat's oral health.
The American Veterinary Medical Association (AVMA) recommends annual dental checkups for all cats, yet many cat owners don't realize their feline friend needs dental care until a problem becomes advanced. This guide covers everything you need to know about cat cavities: what they look like, how they happen, and most importantly, how to prevent them.
What Exactly Is a Cat Cavity?
A cavity (dental caries) is a hole in the tooth caused by acid-producing bacteria that break down enamel and dentin. In humans, cavities are extremely common because we consume high-sugar diets that feed cavity-causing bacteria. In cats, true cavities are relatively rare because:
- Cats have a low-sugar diet (they're obligate carnivores)
- Cat saliva has a higher pH that's less conducive to cavity formation
- Feline tooth shape and structure are different from human teeth
However, cats do suffer from a condition called feline tooth resorption — also known as FORL (feline odontoclastic resorptive lesions) — which many owners mistake for cavities. Unlike true cavities, FORL is not caused by bacteria. Instead, the cat's own body begins to break down and absorb the tooth structure, starting at the crown and working down toward the root. This condition can cause significant pain and requires veterinary treatment.
Feline Tooth Decay vs Feline Resorptive Lesions: How to Tell the Difference
| Feature | True Cavities (Caries) | Feline Resorptive Lesions (FORL) |
|---|---|---|
| Cause | Bacterial acid erosion | Immune-mediated odontoclast activity |
| Appearance | Brown/black pit or hole on the crown | Pink/red lesion at the gum line (gum tissue grows over it) |
| Pain level | Moderate to severe when deep | Severe — often very painful |
| Common in cats? | Rare | Very common (20-60% of cats over 5) |
| Treatment | Filling or extraction | Usually extraction (filling often fails) |
Signs Your Cat Has Tooth Decay or Dental Pain
Cats are masters at hiding pain, so you need to look for subtle behavioral changes:
- Dropping food while eating (especially dry kibble)
- Chewing on one side of the mouth
- Pawing at the mouth or face
- Bad breath that smells unusually foul (beyond normal "cat breath")
- Red, swollen, or bleeding gums
- Visible brown, black, or pink spots on the teeth
- Decreased appetite or preference for soft food
- Weight loss (from eating less due to pain)
- Irritability or hiding more than usual
If you notice any of these signs, schedule a veterinary dental exam as soon as possible.
How to Prevent Cat Tooth Decay at Home
Prevention is the most effective approach to feline dental health. Here's what you can do at home:
1. Regular Dental Cleaning
Daily cleaning is the gold standard for preventing dental disease in cats. The easiest way to start is with RunyePet Dental Finger Wipes, which are designed to be gentle on sensitive feline mouths. Simply wrap the wipe around your finger and gently rub your cat's teeth and gums. Start slowly — even a few seconds per session is enough to build the habit.
2. Dental-Friendly Diet and Supplements
What your cat eats directly affects their dental health. Adding a dental supplement to your cat's food can help reduce plaque and tartar buildup. RunyePet Dental Cleaning Powder — while originally formulated for dogs — contains plant-based enzymes that can be beneficial when added to wet food for cats (always check with your vet first). Choose a high-quality, low-carbohydrate cat food to minimize the sugar that oral bacteria feed on.
3. Regular Veterinary Dental Checkups
Your veterinarian can spot early signs of dental disease, including FORL and true cavities, long before you can see them at home. The AVMA recommends annual dental exams for all adult cats, and more frequent checkups for senior cats (age 7+).
4. Provide Dental Treats for Oral Health Support
While treats should never replace brushing, RunyePet Dental Cleaning Kit includes tools for comprehensive dental care between professional cleanings. The combination of wiping and gentle scraping can help maintain cleaner teeth and healthier gums at home.
Frequently Asked Questions
How common are cavities in cats?
True cavities (caries) are rare in cats — far less common than in humans or dogs. However, feline resorptive lesions (FORL) affect 20-60% of adult cats, which many owners mistakenly call "cat cavities."
Can a cat cavity heal on its own?
No. Neither true cavities nor FORL will heal on their own. Both require veterinary treatment. FORL is especially painful and progresses without professional intervention.
What does a cat cavity look like?
A true cavity looks like a brown or black pit on the tooth surface. FORL looks like a pink or red lesion at the gum line, often with gum tissue growing over the affected area.
How do vets fix cavities in cats?
True cavities can sometimes be filled with dental composite, similar to human fillings. FORL typically requires extraction because the tooth structure is being actively destroyed by the cat's own immune system and fillings rarely hold.
Is cat bad breath always a sign of tooth decay?
Not always, but bad breath (halitosis) is one of the most common signs of feline dental disease. Other causes include kidney disease, diabetes, and respiratory infections. If your cat has persistent bad breath, a veterinary exam is recommended.
The Bottom Line
True cavities are rare in cats, but feline dental disease is not. FORL and periodontal disease affect the majority of cats over age five, causing significant pain that cats instinctively hide. Daily at-home dental care — starting with gentle finger wipes — combined with regular veterinary checkups is the best way to protect your cat's teeth and overall health. Prevention is simple, painless, and far more affordable than treatment.
