Gross A M, Kellum G D, Michas C, Franz D, Foster M, Walker M, Bishop F W
Department of Psychology, University of Mississippi, University.
Am J Orthod Dentofacial Orthop. 1994 Dec;106(6):635-40. doi: 10.1016/S0889-5406(94)70089-3.
A large biracial sample of children were assessed for open mouth posture and maxillary arch width once a year for 3 years. Analyses revealed that although the youngsters exhibited open-mouth posture at high levels, over time, there was a significant decrease in this behavior. Racial and gender differences, as well as a race-by-time interaction, were also evidenced. The children displayed a significant increase in maxillary arch width across time, with gender and racial differences seen in this growth pattern. Finally, when the youngsters were classified as exhibiting primarily open-mouth or closed-mouth posture, it was observed that children with open-mouth posture displayed a significantly slower pattern of maxillary growth compared with children who display anterior lip seal posture. The implications of the findings were discussed.
对一个由不同种族儿童组成的大样本进行了为期3年的评估，每年测量一次其张口姿势和上颌弓宽度。分析显示，尽管这些青少年高水平地表现出张口姿势，但随着时间的推移，这种行为有显著下降。还证明了种族和性别差异以及种族与时间的交互作用。儿童的上颌弓宽度随时间显著增加，在这种生长模式中存在性别和种族差异。最后，当将这些青少年分类为主要表现为张口或闭口姿势时，观察到与表现出前唇闭合姿势的儿童相比，张口姿势的儿童上颌生长模式明显较慢。讨论了这些发现的意义。
