Orthognathic Surgery with anterior segmental osteotomy as alternative of treatment in patients with dento-skeletal deformity Class III AP maxillary deficiency with dental compensation. Case report.

Resumo

Introduction: Orthognathic surgery is a routine procedure carried out by maxillofacial surgeons in patients with dento-skeletal deformations (DSD) with the objective of achieving functional and esthetical satisfactory results. However, some in cases, due to the decision of the patient or the orthodontic team, the occlusion is tried to be compensated with the intention of avoiding surgery, without optimal results. As a consequence, some extra procedures are required in the surgery to correct and obtain better results. Objective: The aim of this case is to propose the anterior segmental osteotomy (ASO) as alternative of treatment in patients with dento-skeletal deformity class III with maxillary and para-nasal deficiency which have been orthodontically compensated. Material and methods: A 18 years old female with DED Class III due anterior-posterior (AP) maxillary and paranasal deficiency and AP mandibular excess. The surgery was carried out through Le Fort I osteotomy in combination with a segmentary osteotomy at the expense of first premolars and bilateral setback sagittal split osteotomy (BSSO). Clinical and imageology post operatory controls were made during the first 6 months and at two years. Results: Through the realization of the anterior segmental osteotomy the correction of occlusal and transversal alterations of the patient maxilla were performed and additionally favorable facial changes were obtained. Conclusion: The initial orthodontic management of patients with DSD will influence the surgical procedures and the achievement of a balance between esthetics and function. This illustrates why the treatment of these patients must be multidisciplinary; the treatment that was chosen in this case was innovative and could be an alternative for the treatments of patients with DED Class III.