Postoperative Functional Remodeling of Preoperative Idiopathic Condylar Resorption: A Case Report

d Idiopathic condylar resorption (ICR) is a condition in which the condylar head of the mandible resorbs partially or completely, leading to alterations of facial morphology and occlusion of the jaw. The possible etiologies of ICR include overloading of the condyle, poor bone quality, and reduction of vascular supply to the condyle, but the etiology and pathogenesis of his condition remain poorly understood. ICR is observed after orthognathic surgery in patients with mandibular hypoplasia and a high mandibular plane angle. When ICR occurs, it induces everal changes that can be seen on a cephalogram. In any cases the resorption occurs on the superoanteior surface of the condylar head. As a result, the hortened ramus height leads to decreased posterior acial height, clockwise mandibular rotation with an ncreased mandibular plane angle, and a decreased ella-nasion-B point angle. Usually, condyles in patients with ICR after orthognathic surgery show progressive resorption with a flattened and malformed condylar shape. We report a case that showed functional remodeling of the condyle in preoperative ICR, where the patient had normal temporomandibular joint (TMJ) function with anatomic reshaping of the condyle after orthognathic surgery.