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本研究采用交叉配对设计对六付模拟架分两组进行对比试验,试验因素为牵引圈位置和模拟治疗的时间,采用YM—2115型三维测量仪观察在不同试验因素下模拟架上下切牙及磨牙水平向及垂直向位移,用实验方法证实了作者对Begg技术打开咬合的理论研究。
In this study, the crossover design was used to compare the six simulations with two groups. The experimental factors were the position of the traction ring and the time of simulated treatment. YM-2115 three-dimensional measuring instrument was used to observe the effect of simulated upper and lower incisors Molar horizontal and vertical displacement, the experimental method to confirm the author of Begg technology to open the bite theory research.