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作者用1年生家犬共16只。选择犬上颌第2切牙作旋转移动。力值100g,扭力矩为550g·mm。正畸的时间为3d至8周,每2周加力1次,加力1～4次。加力时取模作测量。实验结果表明,犬单根牙的扭转速率平均为3.04~(?)/周。同时描绘分析了犬牙扭转移动的曲线。曲线呈平缓的阶梯形。文章还介绍了1种新设计的犬牙扭转实验装置。设计合理新颖,符合力学原理,扭转满意。在测量犬牙扭转角度的方法上,采用取模测量法,根据几何图形测量角度。方法简便,测量准确。
The author used a one-year-old dog a total of 16. Select canine maxillary second incisor for rotation. Force value of 100g, torque of 550g · mm. Orthodontic time is 3d to 8 weeks, every 2 weeks afterburner 1, afterburner 1 to 4 times. Afterburner take mold measurement. The experimental results show that the average single dog teeth twisted rate of 3.04 ~ (?) / Week. At the same time, the curve of the canine tooth twisting movement is depicted and analyzed. The curve is a gentle step. The article also introduced a new design of canine tooth torsion experimental device. Reasonable and innovative design, in line with mechanics, turn satisfaction. In the measurement of canine tooth torsion angle method, the use of modulus measurement method, according to the geometry of the angle measurement. The method is simple and accurate.