Análisis de los cambios volumétricos del cóndilo en pacientes clase II tratados con advansync y herbst por medio del cone beam computer tomography (CBCT). Prueba clínica aleatorizada controlada

Abstract

Functional devices such as Herbst and Advansync have been considered as effective mandibular propulsors and improve skeletal discrepancies in Class II subjects. The aim of this study was to compare the sagittal, transverse, vertical and positional changes of the condyle in Class II patients treated with Advansync and Herbst appliances by means of CBTC. Method: The study was performed with 58 tomographies (pre and post treatment) of 29 adolescent patients, who were treated with mandibular propulsors for 10 months, of whom 6 women and 23 men, high school students between 11 and 17 years old. an average age of 14.11 years (SD = 1.9), 14 patients were treated with Herbst and 15 with Advansync. Results: In the group of people treated with Herbst equipment, the vertical changes (height) were significant (p <0.05) with growths of 2.12 mm on the right side and 1.14 mm on the left side, likewise in the group with the Advansync appliance resulted with significant growths of 0.83 mm on the right side and 1.25 mm on the left side. While the sagittal, transverse and positional changes for the two groups change, however, they are not statistically significant. (p <0.05). Conclusions: The vertical changes were the most significant that there was a similar increase in height for the two Herbst and Advansync groups. The sagittal, transverse changes and the produced in the upper, anterior and posterior articular spaces were not statistically significant