Bozzini Maria Fernanda Rabelo, Valladares-Neto José, Paiva João Batista de, Rino-Neto José
a Department of Orthodontics, School of Dentistry , University of São Paulo , São Paulo , Brazil.
b Department of Orthodontics, School of Dentistry , Federal University of Goiás , Goiânia , Goiás , Brazil.
Cranio. 2018 Mar;36(2):98-105. doi: 10.1080/08869634.2017.1300995. Epub 2017 Mar 31.
To compare the pharyngeal airway dimensions in adults with skeletal Class III malocclusion and well-balanced faces, to ascertain whether sex can influence such measurements and to correlate skeletal pattern with pharyngeal dimensions.
Fifty adults were recruited and assigned to two groups: skeletal Class III (n = 25; 12 males and 13 females, mean age = 26.1 years), and skeletal Class I (n = 25; 11 males and 14 females, mean age = 26.0 years), with well-balanced faces. Pharyngeal measurements were made using cone beam computed tomography and analyzed with Dolphin Imaging software 11.5.
Pharyngeal sagittal area, length, retroglossal area and width were statistically greater for males. Pharyngeal volume was greater for Class III patients (p = .0245), due to enlarged male dimensions. A significant but moderate correlation was observed between pharyngeal airway volume and ANB angle (r = -.4917) and effective mandibular length (Co-Gn, r = .5181).
There is sexual differentiation in the pharyngeal airway morphology for Class III adults. As females present similar pharynx volume compared to a normal skeletal pattern, mandibular setback surgery should be carefully planned because of the risk of airway constriction.
比较骨骼Ⅲ类错牙合畸形且面部协调的成年人与骨骼Ⅰ类错牙合畸形且面部协调的成年人的咽气道尺寸，确定性别是否会影响这些测量结果，并将骨骼类型与咽气道尺寸相关联。
招募了50名成年人并将其分为两组：骨骼Ⅲ类（n = 25；男性12名，女性13名，平均年龄 = 26.1岁）和骨骼Ⅰ类（n = 25；男性11名，女性14名，平均年龄 = 26.0岁），两组面部均协调。使用锥形束计算机断层扫描进行咽气道测量，并使用Dolphin Imaging软件11.5进行分析。
男性的咽矢状面面积、长度、舌后区域和宽度在统计学上更大。Ⅲ类患者的咽体积更大（p = 0.0245），这是由于男性尺寸增大所致。观察到咽气道体积与ANB角（r = -0.4917）和有效下颌长度（Co-Gn，r = 0.5181）之间存在显著但中等程度的相关性。
Ⅲ类成年患者的咽气道形态存在性别差异。由于女性与正常骨骼类型相比咽体积相似，因此下颌后缩手术应谨慎规划，因为存在气道狭窄的风险。
