Schwartz B H, Long R E, Smith R J, Gipe D P
Cleft Palate J. 1984 Apr;21(2):76-81.
Dental study casts on 35 patients with unilateral cleft lip and palate (UCLP) were evaluated at the late primary and early mixed dentition stages for the presence of significant (more than one tooth) posterior crossbites. Using this crossbite criterion patients were divided into "acceptable" and "unacceptable" groups. Eleven arch dimensions on the presurgical dental casts were measured to see if any, either singly or in combination, could be used to predict the later occurrence of significant crossbite. No single measurement of infant arch dimensions significantly differed between children with and without crossbite. Data from 26 patients were used for discriminant function analysis. This produced an equation correctly predicting the presence or absence of posterior crossbites in 88% of cases in the primary and 91% in the mixed dentitions.
对35名单侧唇腭裂（UCLP）患者的牙模在乳牙晚期和混合牙列早期进行评估，以确定是否存在严重（超过一颗牙齿）的后牙反合。根据这个反合标准，将患者分为“可接受”和“不可接受”两组。测量术前牙模上的11个牙弓尺寸，以确定是否有任何一个尺寸或多个尺寸组合可用于预测后期严重反合的发生。有反合和无反合儿童的婴儿牙弓尺寸的单一测量值均无显著差异。26名患者的数据用于判别函数分析。由此得出的一个方程在乳牙列中能正确预测后牙反合存在与否的比例为88%，在混合牙列中为91%。
