中华口腔医学研究杂志(电子版) ›› 2011, Vol. 5 ›› Issue (02) : 184 -191. doi: 10.3877/cma.j.issn.1674-1366.2011.02.012 × 扫一扫
临床研究
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Xiao-bei HU1, Li-ping WU1, Li-xiang MAI1, Mu CHEN1, Da-wei WANG1,†()
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胡小蓓, 吴莉萍, 麦理想, 陈沐, 王大为. 不同矢状骨面型青少年患者口咽气道大小的锥体束计算机断层扫描测量分析[J/OL]. 中华口腔医学研究杂志(电子版), 2011, 5(02): 184-191.
Xiao-bei HU, Li-ping WU, Li-xiang MAI, Mu CHEN, Da-wei WANG. Evaluation of oropharyngeal airway in adolescence with Class Ⅰand Class Ⅱsagittal skeletal patterns on cone-beam computed tomography images[J/OL]. Chinese Journal of Stomatological Research(Electronic Edition), 2011, 5(02): 184-191.
目的
比较Ⅰ类与Ⅱ类矢状骨面型青少年患者口咽气道大小的差异,探讨口咽气道大小与颌面部骨骼形态的关系。
方法
将40 例恒牙早期青少年患者按ANB 角大小分为Ⅰ类、Ⅱ类两种矢状骨面型组。 两组的性别、年龄相匹配且垂直骨面型皆为均角型。 每位患者接受颅面部锥体束计算机断层扫描(CBCT),对口咽气道的截面积、矢状径、横径、长度、容积等指标进行测量分析,比较两组间的差异。 以CBCT 生成的头颅侧位片测量分析颌面部骨骼形态,对口咽气道大小与颌面部骨骼形态的相关性进行研究。
结果
Ⅰ类矢状骨面型组与Ⅱ类矢状骨面型组口咽气道各测量指标间差异无统计学意义(P >0.05)。 口咽气道截面积、容积与前鼻嵴-后鼻棘距离、下颌角点-颏下点距离、关节点-颏顶点距离呈正相关关系(P <0.05);与ANB 角、颌凸角、面角无相关关系(P >0.05)。
结论
Ⅰ类与Ⅱ类矢状骨面型青少年患者的口咽气道大小间差异无统计学意义。 青少年患者口咽气道大小在一定程度上受到上下颌骨长度的影响,口咽气道随着上下颌骨长度的增大而增大。
Objective
To compare the oropharyngeal airway dimension in adolescence with Class Ⅰand Class Ⅱsagittal skeletal patterns and to investigate correlations between the airway dimension and the maxillofacial variables in these adolescence.
Methods
Forty adolescence aged from 11 to 16 years were divided into two groups based on their ANB angles,and the two groups were matched for age and sex.Each subject presented a normodivergent skeletal pattern.Three-dimensional airway volumes and cross-sectional areas were measured by using cone-beam computed tomography volume scans, and two-dimensional lateral cephalograms were created and analyzed.Airway lengths, volumes and cross-sectional measurements were compared between the two groups.Correlation analyses about oropharyngeal airway dimension with the maxillofacial variables were carried out.
Results
No statistically significances between the two groups were found in the cross-sectional and volumetric measurements of the airway (P >0.05).The oropharyngeal airway dimension had positive correlation with ANS-PNS, Go-Me, Ar-Gn (P <0.05), and had no correlation with ANB, NA-PA, FH-NP (P >0.05).
Conclusions
Differences in the oropharyngeal airway dimension were not statistically significant between the two groups.The dimension of the oropharyngeal airway was affected by the lengths of maxilla and mandible, and tend to increase with maxilla and mandible lengths.