Tooth Resorption

Definition, prevalence & Causes

Tooth resorption is a widespread condition where the body begins to break down and absorb the structures of the tooth. This process starts with the dentin, the main component of the tooth, and can eventually affect the entire tooth from root to crown.

It is common in both cats and dogs, with a higher prevalence in older cats, impacting up to two-thirds of cats over the age of six. While less frequently reported in dogs, they can also experience this condition. The exact cause of tooth resorption is unknown, and currently, there are no preventive measures. It is often progressive, leading to significant discomfort and dental health issues.

“Tooth resorption affects up to two-thirds of cats and often goes undetected—making early dental radiographs essential to spot this painful condition before the tooth is irreversibly lost.”

Clinical signs, diagnosis & treatment

Tooth resorption can be extremely painful, though pets often hide their discomfort. Signs in cats include a preference for soft foods, increased salivation, pawing at the mouth and visible changes in tooth colour or structure. Behavioural changes, like increased irritability or withdrawal, may also indicate pain.

Diagnosis involves visual inspection, tactile examination and dental radiographs, which determine the extent of the damage and the type of resorption. In cats, two types are identified: Type I, requiring full extraction, and Type II, where the tooth may be replaced by bone and involves a different extraction technique.

“Extraction is the only effective treatment for tooth resorption since this is a progressive, irreversible disease—guiding pet owners toward relief and better quality of life for their cat.”

Radiographs & Follow-Up Care

Dental radiographs are essential for diagnosis and planning treatment for tooth resorption. They provide a detailed view of the affected teeth, helping to determine whether full extraction or crown amputation is necessary.

We recommend follow-up radiographs every 6-12 months to monitor new developments in pets with tooth resorption.

This painful condition requires prompt and effective treatment to prevent further complications. Early detection and intervention can significantly improve the quality of life for affected pets by reducing pain and limiting severity.

FAQs

What is tooth resorption in cats?

Tooth resorption is a painful condition where a cat’s tooth structure breaks down, starting below the gumline and progressing until the tooth is lost. It’s a common issue that can affect multiple teeth over time

How common is tooth resorption in cats?

It’s very common—many cats will experience it at some stage in their life. It can affect both young and older cats, and often more than one tooth at a time.

What causes tooth resorption?

The exact cause isn’t fully understood, but it’s believed to be linked to the body’s own cells breaking down the tooth structure. Factors such as inflammation, genetics and diet may also play a role.

How can I tell if my cat has tooth resorption?

Cats are experts at hiding pain, so symptoms can be subtle. Watch for changes in eating habits, drooling, pawing at the mouth, bleeding gums or a reluctance to chew. In many cases, the problem is only detected during a dental exam with X-rays.

Can tooth resorption be treated?

Yes. Once diagnosed, extraction of the affected tooth is the only effective treatment, as the condition is irreversible and will continue to progress without intervention.

Can tooth resorption be prevented?

There’s currently no guaranteed way to prevent it, but regular dental check-ups with radiographs are the best way to detect it early and manage it before it causes significant pain.

Key Takeaways

A Common but Overlooked Condition

Tooth resorption affects up to two-thirds of cats, yet often goes unnoticed until the disease is advanced and painful.

Early Detection is Essential

Because the disease can be hidden beneath the gumline, dental radiographs during routine check-ups are critical for finding it early.

Progressive and Irreversible

Tooth resorption cannot be reversed or cured. Without timely treatment, it will continue to damage the tooth and surrounding structures.

Extraction Brings Relief

Removing the affected tooth is the only effective treatment, providing long-term comfort and improving your cat’s quality of life.

Next steps

For Pet Owners

Are you concerned about your pet’s dental health? Call 1300 866 848 or fill out the contact form. We’ll coordinate with your primary vet to ensure the best outcome.

For Vets & Nurses

We’re here to help. If you’d like to refer a patient, please call us at 1300 866 848 , complete the referral form or email us with a brief case summary, relevant radiographs and lab results.

For advice and treatment guidance, email us with a brief case summary, relevant radiographs and lab results.

 


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Complex Anaesthesia

We assess each patient individually, considering their health history, age and any concurrent medical conditions, to tailor the anaesthetic approach to their specific needs.

Surgical Extractions

Removing complex teeth safely and with minimal impact.

Vital Pulpotomy

A vital pulpotomy is a time-sensitive procedure used to preserve the life of a tooth when the pulp becomes exposed due to trauma or dental treatment.

Jaw Fractures

Jaw fractures in pets require precise treatment to restore both structure and function, with a strong focus on proper bite alignment.

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Periodontal treatment goes beyond routine dental care to address the deeper damage caused by advanced gum disease.

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Pet oral surgery can help treat dental problems, injuries, and other conditions affecting your pet’s mouth. Learn about the available procedures and how they can improve your pet’s comfort and oral health.

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Dental and oral imaging helps veterinarians identify dental problems that may not be visible during a routine examination. Learn how these imaging techniques support accurate diagnosis and effective treatment for your pet.

Root Canal Therapy

Root canal therapy can help save a damaged or infected tooth while relieving pain in pets. Learn how this dental procedure works and how it can help preserve your pet’s natural teeth and oral health.

Gingivoplasty

This procedure involves reshaping gum tissue to guide the eruption of canine teeth into a correct position, preventing traumatic occlusion and avoiding more invasive treatments.

Crown Height Reduction

Reducing the height of misaligned canine teeth and protecting the exposed pulp with a filling helps prevent chronic pain, preserve jaw structure and avoid extraction.

Inclined Plane – Crown Extensions

Orthodontic appliances like inclined planes or crown extensions can reposition misaligned canine teeth, preventing trauma and preserving tooth function without altering their shape.

Dog Braces (Orthodontics)

To address mesioverted  (‘lanced’ maxillary canine teeth) and manage linguoversion when the maxillary diastema (the space between the third incisor and canine teeth) is too narrow.

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Restorative dentistry repairs damaged teeth in pets, often using crowns, veneers and fillings. These procedures restore dental structure and function, ensuring long-term oral health.

Professional Dental Cleaning

Thorough cleaning and examination under anesthesia remove plaque and calculus, preventing periodontal disease and ensuring long-term oral health in pets.

Mandibulectomies and Maxillectomies

These surgeries involve partial or complete removal of the jaw to treat malignant oral tumours. Treatment options vary and may include surgery, chemotherapy or radiation.

Crown Amputation for Tooth Resorption

This procedure, often used for tooth resorption, involves removing the tooth crown while leaving the resorbing root remnant intact. It’s less invasive and used in cases where traditional extraction is no longer possible. Regular follow-up is recommended.