Why Does My Cat Need Dental X-Rays?

If your veterinarian has recommended dental X-rays for your cat during a professional dental cleaning, you might wonder whether they are truly necessary. The short answer: dental radiographs are essential, not optional, and the American Veterinary Dental College considers them the standard of care for cats undergoing any anesthetic dental procedure. Here’s why — and what veterinarians discover with them that they simply cannot see otherwise.

The Hidden World Beneath the Gumline

When a veterinarian examines a cat’s teeth visually, they are seeing only the crowns — the portion of each tooth that sits above the gumline. But approximately 60% of each tooth exists below the gumline in the root and surrounding bone. The most serious and painful dental conditions in cats occur at or below the gumline and are completely invisible without radiographic imaging. A tooth can appear relatively normal on visual exam and still have significant disease involving the root that would go undetected and untreated without X-rays.

Tooth Resorption

Tooth resorption is the single most important reason dental radiographs are critical in cats. Affecting 30–70% of adult cats, this painful condition involves specialized cells eroding tooth structure from within, starting at or below the gumline where it cannot be seen with the naked eye. The lesions are intensely painful — comparable to an exposed nerve in a human — yet cats typically give no outward sign, continuing to eat and behave relatively normally. Without X-rays, these lesions are regularly missed. With X-rays, they can be identified and the affected teeth extracted, providing significant pain relief.

Root Abscesses and Bone Loss

Root abscesses occur when infection travels down the tooth root and accumulates at the apex, forming a pocket of infection surrounded by destroyed bone. These are not visible from the crown of the tooth. A cat can have a tooth that appears intact while the root is severely infected. X-rays reveal this clearly, allowing extraction to resolve the infection. Bone loss from periodontal disease is measurable on radiographs in a way that visual examination cannot quantify — knowing the extent of bone loss around a tooth determines whether it can be saved or whether extraction is the kinder option. Retained root fragments from previous extractions and unerupted or impacted teeth are also identified on dental radiographs, conditions that would otherwise be missed entirely.

Is Anesthesia Safe for Dental Procedures?

A common concern from cat owners is the safety of general anesthesia, particularly for older cats. It’s a fair question, and anesthesia does carry some risk for all patients. However, in the hands of an experienced veterinary team with proper monitoring, anesthesia is very safe, and the risks are far outweighed by the benefits of adequate dental care. Cats undergoing dental procedures should have pre-anesthetic bloodwork to assess organ function and receive IV fluids and continuous monitoring of heart rate, oxygen levels, blood pressure, and temperature throughout. Non-anesthetic dental cleanings — where a cat is physically restrained while awake — address only visible crown surfaces, provide no means of obtaining radiographs, and are not recommended by veterinary dental organizations.

How Often Do Cats Need Professional Dental Care?

This varies considerably by individual cat — breed, genetics, diet, and home care all play a role. Your veterinarian will recommend a schedule based on your cat’s unique dental health. Some cats need cleanings annually; others may go longer between procedures with diligent home care.

At Dunedin Animal Medical Center, we include full-mouth dental radiographs as part of every anesthetic dental procedure for cats — because we know what we’d miss without them. Our team in Dunedin, FL is committed to providing the highest standard of dental care to cats throughout Pinellas County. If your cat is due for a dental exam, contact us today to schedule an appointment.