Bone resorption under chin implants: The orthodontist’s role in its diagnosis and management
(Am J Orthod Dentofacial Orthop 2017;151:201-8)
Alloplastic chin implants have been a valuable treatment modality for the correction of microgenia. Their use has provided satisfactory esthetic results by improving facial balance. However, bone resorption under these im- plants can occur. Case reports of 4 patients with the incidental radiographic finding of the presence of chin im- plants are presented. All 4 subjects had lateral cephalograms and panoramic x-rays taken as part of their orthodontic evaluation. One had a normal mandibular symphyseal contour, and 3 had bone resorption under the implants. One subject had severe resorption. In addition to panoramic and cephalometric x-rays, the subject with severe resorption also had magnetic resonance imaging and computerized tomography as part of the eval- uation workup.