Resorption Repair

Resorption is a condition where the body’s own cells begin to break down and dissolve the hard structure of a tooth — either from the inside (internal resorption) or from the outside surface of the root (external resorption). It often occurs silently, without pain or obvious symptoms, and may only be discovered during routine dental imaging.

Internal resorption occurs within the root canal space, where cells begin to erode the walls of the root from within. External resorption occurs on the outer surface of the root, often triggered by trauma, orthodontic forces, infection, or impacted teeth. Both types, if left untreated, can weaken and eventually destroy the tooth. Early detection and specialized treatment are critical to stopping the process and preserving the tooth.

• Pink discoloration of the tooth (a classic sign of internal resorption)
• Resorptive lesion discovered on routine dental X-ray or CBCT scan
• Mild sensitivity or discomfort in an otherwise healthy-looking tooth
• A tooth that becomes slightly mobile without an obvious cause
• History of trauma, orthodontic treatment, or dental surgery in the area
• Infection or abscess near a tooth with no clear decay or fracture

Resorption is fundamentally different from decay. While decay is caused by bacteria dissolving tooth structure from the outside, resorption is caused by the body’s own cells (osteoclasts and odontoclasts) attacking the tooth. This can happen for various reasons: previous trauma that triggered an inflammatory response, orthodontic forces that stressed the root, chronic infection, or sometimes with no identifiable cause.

Treatment depends entirely on the type, location, and extent of the resorption. Internal resorption is typically treated through root canal therapy, where the resorptive cells are removed and the damaged area is repaired with biocompatible material. External resorption may require surgical access to the affected root surface, removal of the resorptive tissue, and repair of the defect. In advanced cases, a combination of non-surgical and surgical approaches may be needed. Dr. Monempour’s extensive experience with resorption cases — including complex presentations that many endodontists rarely encounter — allows us to develop precise treatment plans tailored to each patient’s unique situation.

If your dentist has identified a resorptive defect on imaging, or if you notice a pink spot on a tooth, prompt evaluation by an endodontist is essential. Resorption does not stop on its own — without treatment, it will continue to progressively weaken and destroy the tooth.

The earlier resorption is detected and treated, the more tooth structure can be preserved and the better the long-term prognosis. At Monempour Endodontics, we have the specialized expertise and advanced technology to accurately diagnose the type and extent of resorption and deliver targeted treatment to save your tooth. Contact us for an evaluation.