Symptoms and Signs
- Occlusion
- Anterior open bite
- Receding chin
- Loss of ramus height
- Antegonial notching
- Hyperplasia of the coronoid process of the mandible
- Clicking or popping when opening or closing the jaw
- Pain when opening or closing the jaw
- Limited jaw mobility

Causes
- Unknown cause, but theories suggest hormonal mediation, especially in young females
- Strain on the temporomandibular joint from orthodontics or orthognathic surgery
- Reactive arthritis, rheumatoid arthritis, and psoriatic arthritis as possible causes

Diagnosis
- Clinical evaluation
- Imaging techniques such as cone beam computed tomography, single-photon emission computed tomography, and positron emission tomography

Treatments
- Orthodontics to address malocclusion without surgery, although stability can be an issue
- Orthognathic surgery in conjunction with orthodontics to reconstruct and stabilize the temporomandibular joint
- Use of anti-inflammatory medication to slow the resorption process
- Arthrocentesis and arthroscopic surgery to treat disc displacement and other symptoms
- Total removal of the diseased condyles and replacement with a temporomandibular joint total joint replacement (TJR) device

Related Concepts
- TMJ disorder
- Orthognathic surgery
- Condylar Hyperplasia

Condylar resorption, also called idiopathic condylar resorption, ICR, and condylysis, is a temporomandibular joint disorder in which one or both of the mandibular condyles are broken down in a bone resorption process. This disorder is nine times more likely to be present in females than males, and is more common among teenagers.

Condylar resorption
Other namesIdiopathic condylar resorption
An anatomical diagram of the condyloid process.
SpecialtyOrthopedic
chevron-down linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram