Hu Xiao-Bei, Zhang Kun, Wang Da-Wei, Lei Lang
Department of Orthodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University. Nanjing 210008, Jiangsu Province, China. E-mail:
Shanghai Kou Qiang Yi Xue. 2017 Oct;26(5):530-534.
To analyze whether upper airway dimensions were influenced by different sagittal skeletal pattern among adolescent patients.
Seventy-five adolescent patients were divided into 3 groups based on their ANB angles．The three groups were matched for age and sex． All subjects had a normodivergent skeletal pattern．Airway lengths, cross-sectional measurements and volumes were measured by using cone-beam computed tomography (CBCT) volume scans, and two-dimensional lateral cephalograms were created and analyzed. Airway lengths, cross-sectional measurements and volumes were compared among 3 groups. Statistical analysis was performed using SPSS 22.0 software package.
No significant difference among the three groups was found in Anp, Lnp, Lvp, Lgp and Lhp cross-sectional areas of the airway. The glossopharynx volume was smaller in Class II[(2.34±0.79)mL] than in Class Ⅲ[(3.18±0.63)mL] patients(P<0.05). Total upper airway volume in Class II[(13.89±2.51)mL] patients was smaller than in Class Ⅰ[(16.48±4.41)mL] and Ⅲ[(17.47±3.55)mL] patients(P<0.05).
Upper airway volume is significantly reduced in Class II sagittal skeletal pattern, leading to a higher risk of obstructive sleep apnea/hypopnea syndrome.
分析青少年患者不同矢状面骨骼型对上气道尺寸的影响。
75例青少年患者根据ANB角分为3组。三组在年龄和性别上相匹配。所有受试者均为平均面型。使用锥形束计算机断层扫描（CBCT）容积扫描测量气道长度、横截面积和容积，并制作和分析二维侧位头影测量片。比较三组之间的气道长度、横截面积和容积。使用SPSS 22.0软件包进行统计分析。
三组气道的Anp、Lnp、Lvp、Lgp和Lhp横截面积无显著差异。Ⅱ类患者（[2.34±0.79]mL）的舌咽容积小于Ⅲ类患者（[3.18±0.63]mL）（P<0.05）。Ⅱ类患者（[13.89±2.51]mL）的上气道总容积小于Ⅰ类（[16.48±4.41]mL）和Ⅲ类（[17.47±3.55]mL）患者（P<0.05）。
Ⅱ类矢状面骨骼型患者的上气道容积显著减小，导致阻塞性睡眠呼吸暂停/低通气综合征的风险更高。
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