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标题： Position of the hyoid bone and its correlation with airway dimensions in different classes of skeletal malocclusion using cone-beam computed tomography 本地全文： 下载 作者： Abbas Shokri ; Vahid Mollabashi ; Foozie Zahedi 等期刊名称： Imaging Science in Dentistry 印刷版ISSN： 2233-7822 出版年度： 2020 卷号： 50 期号： 2 页码： 105-115 DOI： 10.5624/isd.2020.50.2.105 出版社： Korean Academy of Oral and Maxillofacial Radiology 摘要： Purpose :This study investigated the position of the hyoid bone and its relationship with airway dimensions in different skeletal malocclusion classes using cone-beam computed tomography (CBCT). Materials and Methods :CBCT scans of 180 participants were categorized based on the A point-nasion-B point angle into class I, class II, and class III malocclusions. Eight linear and 2 angular hyoid parameters (H-C3, H-EB, H-PNS, H-Me, H-X, H-Y, H-[C3-Me], C3-Me, H-S-Ba, and H-N-S) were measured. A 3-dimensional airway model was designed to measure the minimum cross-sectional area, volume, and total and upper airway length. The mean cross-sectional area, morphology, and location of the airway were also evaluated. Data were analyzed using analysis of variance and the Pearson correlation test, with P values <0.05 indicating statistical significance. Results :The mean airway volume differed significantly among the malocclusion classes ( P <0.05). The smallest and largest volumes were noted in class II (2107.8±844.7 mm 3 ) and class III (2826.6±2505.3 mm 3 ), respectively. The means of most hyoid parameters (C3-Me, C3-H, H-Eb, H-Me, H-S-Ba, H-N-S, and H-PNS) differed significantly among the malocclusion classes. In all classes, H-Eb was correlated with the minimum cross-sectional area and airway morphology, and H-PNS was correlated with total airway length. A significant correlation was also noted between H-Y and total airway length in class II and III malocclusions and between H-Y and upper airway length in class I malocclusions. Conclusion :The position of the hyoid bone was associated with airway dimensions and should be considered during orthognathic surgery due to the risk of airway obstruction. Copyright © 2020 by Korean Academy of Oral and Maxillofacial Radiology. 关键词： Airway Management;Cone-Beam Computed Tomography;Correlation of Data;Hyoid Bone;Malocclusion
