Reichard Monefeldt, GuillermoDiéguez Pérez, Montserrat2025-01-102025-01-102024Reichard-Monefeldt, G., & Diéguez-Pérez, M. (2024). Cross-sectional and retrospective study regarding the changes in the spatial position of the hyoid bone and upper airways before and after orthodontic therapy in developing patients with normocclusion. CRANIO®, 1-11. https://doi.org/10.1080/08869634.2024.23509182151-09030886-9634http://hdl.handle.net/11268/13432Objective: The objective was to study the effect of orthodontic therapy regarding the position of the hyoid bone and upper airways in nighty-one 6-21 year-old Caucasian patients with normoclussion. Methods: Nineteen variables were analyzed by teleradiography. The differences were analyzed with the ANOVA test of repeated measures with an intra-group factor for two occasions. Results: The statistical analysis revealed a greater influence on the variables Hy-MP (12.3 vs 14.2), Hps-C3 (25.2 vs 28.1), Hpi-C3 (28.8 vs 35.5), H°-C3 (14.4 vs 12.7), Hps-Rg (36.0 vs 42.7), Hpi-Rg (34.1 vs 39.7), USP (16.2 vs 20.2), MPP (12.9 vs 14.8), C3P (10.6 vs 12.8), PNS-Ba (43.5 vs 66.5), PtV-Ad (12.0 vs 17.1) and PtM-Ba (33.9 vs 35.9), and Ad2-SO (24.16 vs 20.87). Discussion: Significant differences were observed between most of the airway and hyoid bone variables before and after orthodontic treatment in our Spanish pediatric population, especially in the nasopharynx. Keywords: Hyoid bone; airways; craniofacial development; lateral skull radiography; orthodontic treatments; pediatric population; skeletal patternsengOdontología pediátricajournal article10.1080/08869634.2024.2350918restricted accessOdontologíaPediatríaGoal 3: Ensure healthy lives and promote well-being for all at all ages