The damage of shock wave mainly depends on peak overpressure and scaled cube rootdistance is the most common method to estimate the shock wave overpressure.
冲击波的破坏伤害作用主要取决于峰值超压的大小，立方根比例定律是定量估算冲击波超压最常用的方法。
2
Conclusion: the rate of root resorption of two methods are consistent, there's no relationship between the root resorption of the teeth transportation distance or treatment time.
结论：两种治疗方法的牙根吸收率是一致的；牙根吸收率与牙齿移动距离和受力时间没有关系。
3
Each observation could have been weighted inversely as the distance or as the square root of the frequence.