Orthodontic Treatment Protocols for Patients with Idiopathic Condylar Resorption

Treatment of orthodontic patients with idiopathic condylar resorption (ICR) is challenging for clinicians due to the continuous change of occlusion caused by the unstable condylar position and symptoms in the temporomandibular joint (TMJ). As an unstable condylar position can lead to confusion during orthodontic evaluation, stabilization of TMJ with splint therapy should precede orthodontic and/or orthognathic treatment. In this case report, a patient with Class II open bite and progressive condylar resorption was treated with an appropriate treatment protocol. Her condylar position was stabilized with a stabilization splint and her occlusion and facial esthetics were improved with intrusion of her maxillary posterior teeth after extraction of four premolars. Her occlusion was stable without recurrence of joint symptoms 2 years after active treatment.