Aumento da dimensão das vias aéreas em criança com fissura labiopalatina submetida ao protocolo de expansão rápida da maxila e protração maxilar com máscara facial

Abstract

The cleft lip and palate transforamen incisor unilateral (FTIU) is considered one of the most frequently congenital malformations of face. Surgeries to correct this malformation have some side effect in the maxillary development, resulting in a skeletal Class III malocclusion. In addition, a functional difficulty in mastication, the lack of correct development of the maxillary gnathic bones leads, in many cases, problems involving the upper airways due to their lack of gain in volume during development. It is currently known that the aforementioned skeletal Class III can be corrected by means of the Rapid Maxillary Expansion (RME) and Reverse Maxillary Traction (TRM) procedures. However it still remains unclear whether such procedures are also capable of repairing the volume of the maxillae. upper airways. In this context, the present clinical case sought, through the use of rapid maxillary expansion protocols using a Haas expander, followed by reverse maxillary traction using a face mask, to verify its effectiveness in correcting the sequelae resulting from the primary plastic surgeries. To assess the impact of treatment on airway volume, 3D reconstruction of cone beam computed tomography was used before, during and after the end of the proposed protocol (t0, t1 and t2). At the end of the treatment, a considerable increase in the volume of the airways was observed, as well as a correction in the Class III skeletal pattern present in the patient, which demonstrates the effectiveness in the use of RME and TRM for the correction of maxillary atresia in patients after primary plastic surgeries.