补偿曲线曲度与弦斜度相关性分析

STUDY ON THE CORRELATION BETWEEN THE PROMINENCE OF COMPENSATING CURVE WITH THE INCLINATION OF THE CHORD

①目的 统一平衡牙合 ５ 个因素的衡量标准平面和单位，探讨弦斜度与补偿曲线曲度的相关关系。②方法 应用 Ｘ 线立体摄影测量结合计算机技术，对哈尔滨市９９ 例青年的补偿曲线进行测量分析，并以圆心角代表补偿曲线曲度。③结果 弦斜度与圆心角呈高度正相关（ｒ＝ ０．９４７１， Ｐ＜ ０．０１）。方差分析示弦斜度性别差异有极显著性（ Ｆ＝ ７．７９１４， Ｐ＜ ０．０１）。④结论 用弦斜度代替补偿曲线曲度是可行的。

Objective\ To study the correlation between the prominence of compensating curve and the inclination of the chord in order to make a standard plane and unit.\ Methods\ We X ray sterophotogramotry and computer technique were used to measure and analyse the compensating curve of 99 normal occlusion cases. Angle of around was used to represent the prominence of the compensating curve.\ Results\ There were positive correlations between the inclination of the chord and the angle of around ( r=0.9471, P <0.01). F test showed there was sexual divergence on the inclination of the chord( F=7.7914,P <0.01).\ Conclusion\ It is advisable to use the inclination of the chord replace the prominence of compensating curve.