Longitud mandibular y su relación con el ángulo SN - GO GN en radiografías cefálicas laterales digitales

Abstract

Introduction: Knowledge about the normal growth and development of the head and neck are essential to establish the anterior-posterior position of the jaw and thus determine any alterations that may occur in individuals. Objective: Determine the jaw body length and compare it with the SN-GoGn angle using digital lateral cephalic radiographs in patients among 18 and 45 years old. Materials and Methods: A Quantitative, observational, crosssectional study has been carried out using 384 lateral cephalic radiographs from a Radiological Center of Cuenca - Ecuador. The variables studied were: jaw body length, SNGoGn angle and gender. The measurements were made by a trained expert examiner, using AUTOCAD 2018 software. The data obtained were recorded in an Excel spreadsheet, useful to the statistical analysis. Pearson's R correlation coefficient has been used; for interpretation of the values, the suggestion of Cohen (1988) has been followed; null correlation (0.00 ≤ r < 0.10), slight correlation (0.10 ≤ r <0.30), moderate correlation (0.30 ≤ r < 0.50) and strong correlation 0.50 ≤ r < 1). SPSS V27 statistical program has been used to process the data. Results A moderate positive correlation of 0.83 between jaw body length and SN-GoGn angle in patients among 18 and 45 years old has been found out. Conclusion: A moderate positive correlation between the mandibular body and the SN-GoGn angle has been found in the sample studied.