Panchón-Ruiz A, Jornet-Carrillo V, Sanchez del Campo F
Department of Physics, University of Alicante, Spain.
J Craniofac Genet Dev Biol. 2000 Oct-Dec;20(4):198-200.
Moire topography was used to quantitatively determine the shape of the palatal vault in 57 Spanish patients with Down syndrome (DS) (38 males and 19 females; age range 18-36 years) and in 100 normal controls (N) (76 males and 24 females; age range 20-29 years). The topographic image for each palatal vault was analyzed and approximately 40 sets of coordinates (x, y, z) were recorded. Other parameters, including length, width and maximum height, were recorded from the palate vault images. No appreciable sexual dimorphism in palate dimensions was observed in DS subjects versus the situation in N subjects. Globally, the average N dimensions were significantly greater than those in the DS patients (P < 0.005). A special palatal morphology was found to be associated with DS, with different ratios for the three dimensions (mean factor 0.88 for length, 0.81 for width and 0.73 for height), versus the healthy palatal vaults. It is concluded that palatal morphology in DS fits an elliptic paraboloid. On the other hand, no lineal correlation was observed between height, width and length in the DS and N groups. The scatter plots of bivariate data exhibited a shapeless morphology. The lineal correlation coefficients ranged from 0.008 to 0.33 for the DS and N groups.
使用云纹 topography 对 57 名患有唐氏综合征（DS）的西班牙患者（38 名男性和 19 名女性；年龄范围 18 - 36 岁）和 100 名正常对照者（N）（76 名男性和 24 名女性；年龄范围 20 - 29 岁）的腭穹窿形状进行定量测定。对每个腭穹窿的地形图进行分析，并记录大约 40 组坐标（x，y，z）。从腭穹窿图像中记录其他参数，包括长度、宽度和最大高度。与正常对照者相比，唐氏综合征患者在腭部尺寸上未观察到明显的性别差异。总体而言，正常对照者的平均尺寸显著大于唐氏综合征患者（P < 0.005）。发现一种特殊的腭部形态与唐氏综合征相关，与健康的腭穹窿相比，三个维度的比例不同（长度平均系数为 0.88，宽度为 0.81，高度为 0.73）。得出结论，唐氏综合征患者的腭部形态符合椭圆抛物面。另一方面，在唐氏综合征组和正常对照组中，未观察到高度、宽度和长度之间的线性相关性。双变量数据的散点图呈现出无形状的形态。唐氏综合征组和正常对照组的线性相关系数范围为 0.008 至 0.33。
