Edition V06N01 | Year 2020 | Editorial Case Report | Pages 22 to 27
Down syndrome (DS) is a congenital autosomal disease characterized by a deficiency of growth and mental development. These patients have a small skull, midface shortening, nasal bone depression, flattened malar, mandibular branch, body and symphysis decreased, and eyes tilted upward. The sagittal maxillary growth is closely related to the skull base growth. DS patients may have posterior cross bite, open bite, dental and/or skeletal Class III, underdevelopment of orofa- cial muscles, deficiency in the lip seal, tongue projection against the teeth, which carries a bad teeth positioning compromising the oral health. These patients also have a reduced airway, macroglossia, hypertrophy of the tonsils, suction problems, speech and chewing are usually related to Down syndrome. Objective: To report a case of a Angle Class III patient with SD. It was made a maxillary and chin advancement, also a bone graft on the chin. After the surgery the patient had a stable occlusion. Conclusions: It can be concluded that the benefits arising from orthognathic surgery to correct causes of disability in the physiological growth providing an improvement in function and aesthetics.