What Exactly is Root Resorption?

Root resorption happens when the body mistakenly starts dissolving the structure of a tooth’s root. It’s a natural and healthy process in children—helping baby teeth loosen so permanent teeth can emerge—but when it affects adult teeth, it can lead to pain, tooth instability, and even tooth loss.

There are three main types:

• Internal Resorption: Begins inside the tooth, often due to inflammation in the pulp (the soft inner tissue).
  
• External Resorption: Starts on the outside surface of the root, near where it connects to the jawbone, and progresses inward. This is also due to an infected pulp. 

• Invasive Cervical resorption: Which starts on the outside and progresses to the inside of the tooth and surrounds the pulp of the tooth. This appears moth-eaten on an x-ray and can come with no signs or symptoms to the patient. Routine dental check-ups are usually required to detect these.

All types can silently damage the tooth over time. Because resorption often develops without symptoms, it’s frequently discovered during routine X-rays.

If you’d like a deeper overview of how we diagnose and treat this condition, visit our Root Resorption service page.

Causes of Root Resorption

While the exact cause isn’t always clear, several factors can contribute:

1. Dental Trauma

A blow or fall can injure the root, triggering the body’s healing response—and inadvertently causing it to break down the root structure.

2. Orthodontic Treatment

Pressure from braces or aligners can occasionally stress the roots, especially if teeth are moved too quickly.

3. Infection or Inflammation

Long-term infection around the tooth or gums can activate the body’s defense cells, which sometimes begin attacking the tooth itself.

4. Genetics and Systemic Conditions

Some individuals have a genetic predisposition or systemic health conditions that increase susceptibility to resorption.

5. Pressure from Impacted Teeth or Cysts

An impacted tooth pressing against another or a nearby cyst can create the kind of chronic pressure that leads to external resorption.

Recognizing the Signs

Early-stage root resorption rarely causes discomfort. As it progresses, you might notice:

• Increased sensitivity to hot or cold
  
• Gum swelling or tenderness
  
• Tooth discoloration
  
• A loose or “mobile” tooth

Because symptoms are subtle, routine X-rays and dental check-ups are essential for catching the condition before it causes significant damage.

Treatment Options

Treatment depends on how advanced the resorption is and whether it’s internal or external.

Monitoring

For minor, slow-progressing cases, your dentist may recommend careful observation with regular imaging.

Root Canal Therapy

When internal resorption damages the pulp, root canal treatment removes the inflamed tissue, disinfects the area, and seals the tooth to prevent further loss.

Surgical Intervention

In more severe external cases, endodontic surgery may be needed to remove damaged tissue or repair the root from the outside.

Extraction and Replacement

If the tooth can’t be saved, extraction followed by a dental implant or bridge restores function and appearance.

Your endodontist may also recommend cosmetic solutions such as crowns or veneers if the resorption has affected your smile’s appearance.

Prevention and Early Detection

While not always preventable, these steps reduce your risk:

• Attend regular dental exams and imaging.
  
• Protect teeth from injury by wearing a mouthguard during sports.
  
• Maintain consistent brushing, flossing, and gum health.
  
• If you’re undergoing orthodontic treatment, ensure regular monitoring for root changes.

Why See an Endodontist?

Endodontists specialize in diagnosing and treating complex root issues like resorption. They use advanced imaging and microscopes to save natural teeth whenever possible.

At Ballantyne Endodontics, our doctors perform root canal therapy, endodontic retreatment, and microsurgical procedures to stop resorption and restore tooth stability. For common questions about treatment, visit our Endodontic FAQs.

Take Action Early

Root resorption can progress silently, but timely care makes all the difference. If you’ve experienced dental trauma, orthodontic treatment, or unexplained tooth sensitivity, don’t wait—schedule a consultation.

Contact Ballantyne Endodontics today. Our Charlotte-based team is dedicated to saving natural teeth and restoring comfort through precision endodontic care.