What Is Tooth Resorption?

Tooth resorption occurs when specialised cells called odontoclasts begin dissolving the hard tissues of a tooth.

Instead of protecting the tooth, the body starts removing it.

The process can affect:

• The enamel

• The dentine

• The cementum

• The tooth root

As the disease progresses, the tooth becomes increasingly painful and may eventually fracture or disappear beneath the gumline.

Unlike periodontal disease, which begins with plaque and bacterial infection, tooth resorption is a disease of the tooth itself.

How Common Is Tooth Resorption?

Tooth resorption is very common in adult cats, particularly as they get older.

Many affected cats have more than one tooth involved, and some develop new lesions over time.

Because early lesions are hidden below the gumline, the condition is often more advanced than owners realise.

What Causes Tooth Resorption?

The exact cause is still unknown.

Researchers believe several factors may contribute, including:

• Age

• Chronic inflammation

• Altered mineral metabolism

• Genetics

• Mechanical stress on teeth

Despite extensive research, no single cause has been identified.

Importantly, owners do not cause tooth resorption by failing to brush their cat's teeth.

Which Teeth Are Most Commonly Affected?

Although any tooth can be affected, the premolars and molars are among the most commonly involved.

Cats frequently develop multiple affected teeth at the same time.

This is why a complete oral examination and full-mouth dental X-rays are so important.

What Are the Signs of Tooth Resorption?

Cats are experts at hiding pain.

Many continue eating despite severe disease.

Possible signs include:

• Drooling

• Bad breath

• Chattering the jaw when eating

• Dropping food

• Chewing on one side

• Pawing at the mouth

• Preferring soft food

• Reduced grooming

• Weight loss

• Hiding or becoming quieter than usual

Some cats show almost no obvious signs until the disease is advanced.

Why Is Tooth Resorption So Painful?

As the protective layers of the tooth are destroyed, sensitive tissues become exposed.

Even gentle pressure from eating or grooming can trigger significant pain.

Many owners are amazed by the improvement in their cat's comfort and behaviour after treatment.

Can Tooth Resorption Be Seen Just by Looking?

Not always.

In many cases, the visible crown looks relatively normal while the disease is progressing beneath the gumline.

Other cats develop a characteristic area of inflamed gum growing over part of the tooth, sometimes called a "pink spot" lesion.

Because the most important changes often occur below the gumline, dental X-rays are essential for an accurate diagnosis.

Why Are Dental X-Rays Essential?

Dental radiographs allow veterinarians to:

• Confirm the diagnosis.

• Identify affected roots.

• Detect additional teeth that appear normal on visual examination.

• Determine the type of tooth resorption.

• Plan the most appropriate treatment.

Without X-rays, many affected teeth would be missed.

How Is Tooth Resorption Treated?

Unfortunately, tooth resorption cannot be reversed.

Treatment focuses on eliminating the source of pain.

Depending on the type and stage of disease, treatment may include:

• Surgical tooth extraction.

• Crown amputation (only in carefully selected cases where appropriate).

• Pain relief.

• Professional dental cleaning.

• Ongoing monitoring of the remaining teeth.

Your veterinarian will determine the best approach based on the clinical examination and dental X-rays.

Can Tooth Resorption Be Prevented?

At present, there is no proven way to prevent tooth resorption.

However, regular veterinary dental examinations and professional dental assessments allow affected teeth to be identified before they cause prolonged pain.

Routine dental X-rays are especially valuable because early lesions are often invisible during a visual examination.

Does My Cat Need Regular Dental Checks?

Yes.

Because cats often hide dental pain so well, regular examinations are one of the best ways to detect problems early.

During a dental procedure, veterinarians assess every tooth individually and use dental X-rays to identify hidden disease.

Early diagnosis usually means earlier pain relief and a better quality of life.

Frequently Asked Questions

Is tooth resorption the same as periodontal disease?

No. Periodontal disease affects the supporting tissues around the tooth, while tooth resorption is a disease in which the tooth itself is gradually destroyed.

Can tooth resorption heal on its own?

No. Once a tooth is affected, the disease continues to progress. Treatment is aimed at removing the source of pain.

Can my cat still eat with tooth resorption?

Many cats continue eating despite severe pain because they instinctively hide illness. Eating does not mean the tooth is comfortable.

Do all affected teeth need to be extracted?

Not always. The most appropriate treatment depends on the type and stage of tooth resorption, which is determined using a clinical examination and dental X-rays.

Is tooth resorption common?

Yes. It is one of the most common dental diseases seen in adult cats.

Key Takeaways

• Tooth resorption is one of the most common and painful dental diseases in cats.

• The disease destroys the tooth from within and often begins below the gumline.

• Cats frequently hide signs of dental pain.

• Dental X-rays are essential because many lesions cannot be seen during a visual examination.

• Early diagnosis and treatment significantly improve comfort and quality of life.

Book Your Cat's Dental Assessment

 

If your cat has bad breath, yellow teeth or signs of dental disease, don't wait until the problem becomes painful.

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Early treatment is often simpler, more affordable and more comfortable for your cat.

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Contact Fortitude Valley Vet today to arrange a dental assessment and learn why so many Brisbane cat owners trust us for affordable, comprehensive dental care.

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Fortitude Valley Vet proudly cares for cats from:

• Fortitude Valley

• Newstead

• Teneriffe

• New Farm

• Bowen Hills

• Spring Hill

• Herston

• Kelvin Grove

• Paddington

• Red Hill

• Hamilton

• Windsor

• Albion

• Ashgrove

• Petrie Terrace

 

Many of our clients choose us because they want transparent pricing, modern dental equipment and compassionate veterinary care close to Brisbane's inner city.

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Reviewed by Dr Nic Cher, BVMS
Principal Veterinarian | Fortitude Valley Vet

Dr Nic Cher is a Brisbane veterinarian with over 15 years of experience caring for dogs and cats. He has a special interest in preventive healthcare, pet dentistry, pet longevity and helping owners make informed, evidence-based decisions to keep their pets healthier for longer.

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