Relación del ancho faríngeo con la clase esqueletal según el índice de maduración cervical

Abstract

Objective: To determine the relationship between pharyngeal width and skeletal class according to the cervical maturation index. Materials and Methods: The sample consisted of 416 radiographs in an observational, retrospective cross-sectional study. The skeletal class was determined by Steiner ANB angle and pharyngeal diameters by McNamara cephalogram. Nemochep v.18.86 software was used for the cephalometric tracing; in addition, visual analysis of the cervical vertebrae was carried out according to the analysis proposed by Baccetti. Frequency and dispersion measures were analyzed by descriptive statistics regarding skeletal class and pharyngeal width according to the cervical maturation index. Inferential statistics were applied to associate pharyngeal width with skeletal class by the Chi-square test (p≤ 0.05) and the Tau-b Kendall correlational test. Results: It was observed that the upper pharyngeal width measurements averaged 10.05 mm and the lower pharyngeal width averaged 9.35 mm, values lower than the cephalometric norm. In addition, it was observed that the upper and lower pharyngeal diameter variations decrease in the post-pubertal stages. Conclusion: An inverse relationship was found between pharyngeal width and skeletal class; that is, skeletal type influences the measurement of pharyngeal width.