Conclusion1. Pedicle screws fixation provides powerful corrective force, and can enhance the efficacy of spinal deformity correction.2.
结论:1、椎弓根螺钉提供了强大的矫正力,提高了脊柱畸形的矫正效果。
参考来源 - 全椎弓根螺钉固定及控制性降压联合自体血回输在脊柱侧凸矫形的应用·2,447,543篇论文数据，部分数据来源于NoteExpress
In Canada children aged 2-12 can be struck, but not with objects or on the head: "minor corrective force of a transitory and trifling nature" is allowed.
加拿大允许体罚2 - 12岁的孩子，但不能使用工具或击打头部，“暂时、轻微的体罚”是可以的。
Results There was a good recovery of alveolar bone after arrachement, and under the effect of corrective force , the hyperplasia and absorption continually occurred with height reduction.
结果拔牙术后牙槽骨愈合良好，在矫治力的作用下，牙槽骨不断出现增生和吸收，并且高度降低。
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