Midfacial changes in the coronal plane induced by microimplant-supported skeletal expander, studied with cone-beam computed tomography images.

•We evaluated midface skeletal effects induced by a microimplant-supported skeletal expander in late adolescent patients in the coronal plane.•Several circummaxillary bones and sutures were modified by the bone-borne maxillary expander.•The zygomatic bone undergoes a considerably greater lateral displacement than previously reported for tooth-borne expanders.•Center of rotation for the zygomaticomaxillary complex was slightly above the frontozygomatic suture.•Microimplant-supported skeletal expander generated midface expansion in late adolescent patients.