Objective: To study the tooth size correlation between permanent cuspid and bicuspid group and other teeth groups in malocclusion.
目的:研究错牙合、正常牙合的尖牙、双尖牙组与其它组牙的相关性,为尖牙、双尖牙组的预测提供科学依据。
Conclusion: Predicting the tooth size of cuspid and bicuspid group in malocclusion can't simply follow the law of normal occlusion.
结论:临床上对错尖牙、双尖牙组的预测不能简单等同于正常。
The vertical shifts of brackets could change the preadjusted torque value and the design of cuspid bracket should have the distinction between mesial and distal shape.
托槽垂直向移位可引起既定转矩值的改变,尖牙托槽底板弧度应有近远中之分。
Methods: a 3-d FEM model of lower cuspid was established by using DICOMdata and stimulant mechanical experiment was carried out on the model.
方法:利用DICOM数据建模法,建立下尖牙的三维有限元模型,模拟力学实验。