Camouflage treatment of severe skeletal Class III malocclusion with miniscrew anchorage

BackgroundThis case report describes the successful use of a miniscrew implant to treat a 22-year-old man with skeletal Class III malocclusion, a deviated midline, and a chief manifestation of anterior crossbite.MethodsTwo miniscrew implants, 7 mm in length, were placed in the buccal region between the second premolar and first molar of the mandible, followed by non-extraction treatment with a 0.022-in slot, preadjusted, edgewise appliance. A combination of a miniscrew implant anchorage and closed-coil springs with a 250-g load was used.ResultsThe anterior crossbite was resolved by distal movement of the mandibular arch, although the maxillary incisors were proclined and the mandibular incisors were retroclined due to dentoalveolar compensation for skeletal discrepancy. Acceptable molar relationship, proper canine relationship, coincidence of dental midline, and improved facial profile were accomplished.ConclusionOur case report suggests that retraction of the mandibular arch using miniscrew implant anchorage might expand the adaptability of orthodontic camouflage treatment of Class III malocclusion.