Aggregation model to measure effectiveness of the mini-screw assisted rapid palatal expansion protocol (MARPE)

Abstract

To evaluate microimplant-assisted rapid palatal expansion (MARPE), considered an alternative to surgical interventions for midpalatal suture disjunction in adolescents and adults with transverse maxillary deficiency. This research aims to develop an aggregation model to measure the effectiveness of the miniscrew-assisted rapid palatal expansion protocol (MARPE). The application of MARPE is demonstrated in an unfavorable case report of an adult with total crossbite, in an advanced stage of fusion of the palatal process, with poor bone volume, in comparison with the same therapy in an adolescent of an earlier stage of maturation of the suture. In both cases, the recommended activation protocol was carried out. MARPE has the versatility to adopt differentiated protocols in relation to chronological age and stage of ossification of the suture. A tomography showed satisfactory results in both patients. In the unfavorable case, suture opening occurred at more modest levels, but was sufficient to correct the posterior crossbite.