Class III malocclusion with severe anteroposterior discrepancy

this study aims at reporting the clinical case of a patient with class iii skeletal malocclusion with severe maxillary deficiency, producing a reduced midface associated with severe mandibular prognathism. the pre-surgical orthodontic preparation was composed mainly by dentoalveolar expansion and repositioning of the incisors in the lower arch. then, a combined maxillary and mandibular orthognathic surgery was performed. the treatment objectives were achieved, with significant improvement in facial esthetics and occlusion, followed by post-treatment stability. this case was presented to the brazilian board of orthodontics and facial orthopedics (bbo), as part of the requirements for obtaining the title of diplomate by bbo.