IDIOPATHIC CONDYLAR RESORPTION

This is a rare but not uncommon entity in which the jaw joints gradually shrinks and resorbs. It generally occurs in young females from 15 to 25 but can occur and reactivate beyond these years. Other factors implicated are a smaller lower jaw with an overbite, and a steep jaw line. Patients frequently have had past orthodontics to align the teeth. 

Diagnosis depends upon history, and long term monitoring. Mild cases may be treated with minimal intervention however, more severe cases may need jaw surgery to correct the bite and skeletal shape. 

This is a typical OPG of a patient demonstrating flattening of the condyles and loss of vertical height of the jaw charachteristic of ICR.

Treatment depends on multiple factors such as activity of the disease process, age, severity and concurrent TMJ conditions such as TMJ dysfunction.