Correlación de la base del cráneo con el patrón facial y la posición sagital de los maxilares

Abstract

The aim of this study was to determine the correlation of cranial base with the facial pattern and the sagittal position of the jaws. Ninety lateral cephalometric radiographs were selected from Ecuadorian adolescents of Azuay province with mean age of 14 years, of both genders. The anatomical design, landmark demarcation, tracing and the measurement of planes and angles were manually performed. Next, the Ricketts VERT index was used to determine the facial pattern, and the sample was distributed in three groups: (1) mesofacial, (2) dolichofacial and (3) brachyfacial. The SN and SBa planes, and the SNBa and SN-PoOr angles were the cranial base measurements considered for the analysis. While the measurements of the sagittal position of the jaws used were the SNA and SNB angles. No correlations between the cranial base variables and facial pattern were observed. However, there were significant negative correlations of the SNBa angle with SNA (r= -0.441, p=0.000), SNB (r= -0.438, p=0.000), and the SN-PoOr angle with SNA (r= -0.63, p=0.000), SNB (r= -0.647 p= 0.000), and between the SN plane and the SNA angle (r= -0.231; p=0,029). There was no correlation of the SN plane with the SNB angle, neither of the SBa plane with the SNA and SNB angles.