Middle and lower third face changes in patients with Oral Respiration treated by Rapid Maxillary Expansion

Oral respiration is a syndrome that affects the growth and development of the individual who suffers from this anomaly and also causes alterations at the skeletal level, damaging the craniofacial structures adjacent to this problem; facial, demonstrating a hyperdivergent and functional growth pattern that is absent and producing changes in the nasal cavity, mandible, maxilla, tongue, lips and the presence of dental crowding due to the imbalance of the new respiratory pattern. The aim of the present study was to describe the facial changes in the middle and lower third of the face in patients with oral respiration after being treated with rapid palatal expansion. The following is a systemic review where the analysis of 15 scientific articles that met the inclusion criteria was performed, among which are systemic reviews, meta-analysis, case reports obtained in databases such as: PubMed, Lilacs, Dialnet, Elsevier, Clinical Key, ScieLO, AMOLCA. It was found that rapid maxillary expansion is an orthopedic method that is applied to produce dentoalveolar changes, thus influencing the transversal correction also in the nasal complex resulting in the elimination of skeletal problems, with positive changes at facial, dental and functional level, as long as the therapy such as rapid maxillary expansion is recommended at early ages. However, the efficacy of the treatment depends on being within the age range so that there is no recurrence in the future