Efectividad del Herbst y Advansync en los cambios esqueléticos y dentoalveolares según el estadío de maduración vertebral en pacientes Clase Il esqueletal. Una prueba clínica aleatorizada

Abstract

Class II malocclusions are the vast majority of the skeletal discrepancies treated in orthodontics. The aim of this study was to establish the effectiveness of skeletal and dentoalveolar changes with the use of Herbst and Advansync appliances according to the stage of vertebral maturation in skeletal Class II patients. The sample consisted of 30 subjects ranged 11 to 18 years of age randomly divided, 15 used the Herbst appliances and 15 Advansync, according to the stage of cervical vertebral maturation Baccetti method was divided into two groups: pubertal group (subjects with stage CVMS I, II, III) and postpubertal group (stage CVMS IV, V) and to determine the effectiveness of the devices in terms of skeletal and dentoalveolar changes the variables OLp-SS, OLp-Pg, OLp-MS, OLp-MI, OLp-IS, OLp-II according to the Pancherz analysis were used. They obtained very highly significant changes P ≤ 0.001 for the variables OLp-MI 6.95 mm in the pubertal group and 7.4 mm for the postpubertal group. OLp-II 9.9mm puberal and 7.4mm postpubertal. OLp-Pg 5.03mm puberal and 3.16mm postpubertal. No significant changes were found for OLp-SS, OLp-MS, OLp IS. The results of this research reveald that there are no statistically significant differences between the pubertal and postpubertal groups in terms of skeletal and dentoalveolar changes with the use of Herbst and Advansync appliances, therefore, this type of treatment is a good alternative for skeletal Class II correction in patients that are in the peak of pubertal growth as in the postpubertal stage