Pharyngeal airway in children with prognathism and normal occlusion
Pharyngeal airway in children with prognathism and normal occlusion
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DOI：
10.2319/013010-65.1
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发表时间：
2011-01-01
影响因子：
3.4
通讯作者：
Yamasaki, Youichi
中科院分区：
文献类型：
--
作者：
Takemoto, Yoshihiko;Saitoh, Issei;Yamasaki, Youichi
目的：为了检验这一假设，即有没有差异，在咽气道宽度和位置的颌面骨骼之间的naternathic和normallchildren.Materials和Methods：25名女孩naternathism（平均值，7.9 +/- 0.9岁）和15名女孩与正常咬合（平均值，8.4 +/- 1.5岁）参加了这项研究。在每个女孩的头颅侧位片上，所有点的坐标都被标记出来，并使用机械三维数字化系统进行系统的数字化。独立组t检验用于检测两组之间的上咽和下咽宽度的显著差异。每个点的水平位置和上，下咽wavelengths.Results之间的相关性：Prognathic女孩有一个显着更广泛的下咽气道相比，与正常咬合（P = .01）。此外，在两组女孩中，Ar的水平坐标与下咽气道宽度呈显著正相关。下颌骨的女孩倾向于更向前定位，导致更广泛的下咽气道。（角度正交。2011;81：75-80.）
Objective: To test the hypothesis that there is no difference in the pharyngeal airway width and the position of the maxillofacial skeleton between prognathic and normal children.Materials and Methods: Twenty-five girls with prognathism (mean, 7.9 +/- 0.9 years old) and 15 girls with normal occlusion (mean, 8.4 +/- 1.5 years) participated in this study. On each girl's lateral cephalogram, the coordinates of all points were marked and systematically digitized using a mechanical three-dimensional digitizing system. An independent-groups t-test was used to detect significant upper and lower pharyngeal width differences between the two groups. Correlations between the horizontal positions of each point and upper and lower pharyngeal widths were examined.Results: Prognathic girls had a significantly wider lower pharyngeal airway compared with those with normal occlusion (P = .01). Furthermore, the horizontal coordinate of Ar was significantly positively correlated with lower pharyngeal airway width in both groups of girls.Conclusions: The hypothesis is rejected. The mandible in prognathic girls tends to be positioned more anteriorly, resulting in a wider lower pharyngeal airway. (Angle Orthod. 2011;81:75-80.)