Cambios esqueleticos sagitales en pacientes de 11 a 18 años de edad con maloclusion clase II esqueletal tratados con aparatologia Advansync & Herbst. Prueba clínica aleatorizada.

Abstract

Class II malocclusion is a frequent problem in orthodontic patients, whose main cause is mandibular retrusión, therefore, the purpose of this randomized prospective clinical study was to determine and compare the sagittal skeletal changes produced in patients treated with Advansync and Herbst. The sample consisted of 30 patients, who met the criterion, 6 women and 24 men, between 11 and 17 years old with an average of 14.4 years(SD = 1.96), the sample was randomized and was obtained two study groups; the total treatment time was 10 months, with activations every three months. The cephalometric tracings were made by a specialized researcher using the software Dolphin Digital Imaging and Management Solutions version 11.3 ™, at the beginning (T1) and at the end of the treatment (T2). For the statistical analysis the tests of Shapiro Willk,. T- Student, and Fisher's exact test were used, with a statistical significant of (p <0.05). The results indicate that Herbst had significant changes in all the measurements, and with Advansync there was only significant change in the Wits. There were no statistically significant differences in the evaluated measures when comparing both devices. There were favorable changes with both Herbst and Advansync, however, Herbst showed a higher percentage rate of desired effects in the analyzed angles, specifically in SNA, SNB, ANB, Wits and NAPog.