Reverse Maxillary Traction: case report

Abstract

The objective of this study was to evaluate the bone and dental effects of reverse maxillary traction, using Petit's face mask, associated with traditional orthodontic mechanics. Patient K.P.R, female, 12 years old, feoderma, sought orthodontic care, reporting as the main complaint “absence of lower teeth and very large chin”. After the clinical examination and the evaluation of the orthodontic documentation (extra and intraoral photographs; panoramic of the jaws; lateral teleradiography and cephalometric tracing), a case of skeletal Class III was diagnosed, with mandibular prognathism, whose hereditary history demonstrated the occurrence of other family members with the same change. In view of the above, orthopedic intervention was chosen, through the association of the Hyrax expander and Petit's face mask, and subsequently, the bonding of a fixed orthodontic appliance was continued, applying the Class III correction mechanics, through intermaxillary elastics. The treatment was completed after 20 months. The association between orthopedics and orthodontics, performed through reverse maxillary traction and fixed apparatus, resulted in benefits for the correction of Class III malocclusion, minimizing the bone and dental effects of this malocclusion, as well as promoting a considerable improvement in facial aesthetics of the patient.