Bone-borne surgically-assisted rapid maxillary expansion: case report

LEONARDO AUGUSTUS PERAL FERREIRA PINTO, VIVIANE FERREIRA RAMOS, MICHELLE ALONSO COUTINHO, SABRINA MORELLI DE OLIVEIRA

Surgically-assisted rapid maxillary expansion is a surgical-orthodontic procedure performed in patients with bone maturity and unilateral or bilateral transverse discrepancies, whether or not associated with other facial deformities. The aim of this study is to present a case report of a surgical-orthodontic treatment performed by surgically-assisted rapid maxillary expansion with bone-borne appliance. The patient was a 33-years-old male, with maxillary transverse discrepancy of 9 mm, anterior and posterior crossbite, dental crowding, dental Class III and Pattern III facial growth, with vertical excess of the lower facial third. After surgical-orthodontic treatment, a cone-beam computed tomography of the final zoocal models was performed, for documentation, verification of operative stability of bone structures and gain of transverse maxillary distance. The patient presented bone stability of the values achieved in the surgical expansion. In patients with severe transverse deficiency, bilateral crossbite, uprighted maxillary alveolar ridges, periodontal deficiencies in the teeth supporting the tooth-borne appliance, systemic diseases that compromise the tooth enamel and bone maturation, the best treatment is surgically-assisted rapid maxillary expansion with bone-borne appliance.

Keywords: Osteogenesis, distraction. Palatal expansion technique. Surgery, oral.

How to cite: Pinto LAPF, Ramos VF, Coutinho MA, De-Oliveira SM. Bone-borne surgically-assisted rapid maxillary expansion: case report. J Braz Coll Oral Maxillofac Surg. 2021 Sept-Dec;7(3):45-51.

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