哈尔滨市正常人牙齿基本特征的研究

目的 探讨白种人与黄种人标准正常he6项特征的差异。方法 选择50副标准正常he模型,测量各牙齿的牙冠角度、牙冠倾斜角度、牙冠突距、磨牙外展度、Spee曲线曲度、临床牙冠高度及宽度。结果 测量结果与Andrews测量结果有明显区别,特别是牙冠角度、牙冠倾斜角度、牙冠突距差别更显著。结论 本文的测量值不仅为直丝弓技术提供数据依据,而且对方丝弓技术和细丝弓技术有指导意义。

Study of normal occlusion major characteristics in Harb in

Objective To investigate the differences of normal occlusion six major characteristics between white people and yellow people.Methods Fifty cast with normal occlusion were chosen and their six major characteristics were measured,namely,tip,torque,crown protrusion,offset,spee curvature,clinical crown height and width.Results There were significant differences in the measurement data from Andrews measurement data,especially in tip,torque,crown protrusion.Conclusion The result not only can apply data evidence for straight wire technique but can instruct the Edgewise technique and Begg technique as well.