不同正畸力对上颌尖牙移动速率影响的分析

发布时间：2018-06-15 13:00

本文选题：正畸 + 牙齿移动　；参考：《口腔医学研究》2017年04期

【摘要】：目的:通过测量上颌尖牙在不同时间内不同正畸力值作用下牙齿移动的距离,探索牙齿移动和最适力的关系。方法:选取32例处于生长发育期的患者为研究对象,随机分成4组。依组别分别对其上颌右侧的尖牙给予50、100、150、250g的远中移动的初始力。对侧尖牙不加力,为对照组。测量不同时间内全部样本左右侧尖牙移动的距离。结果:尖牙受力后不同时间内牙齿移动速率不同,有统计学意义(P0.01),不同力值作用下的各组牙齿移动速率也不同(P0.01),二者有交互作用。结论:对于上颌尖牙,当正畸加载力小于100g时,移动速率随着力值的增大而不断增加。但当超过100g后,随着力值的增加,牙齿移动速率增加不明显。
[Abstract]:Objective: to study the relationship between tooth movement and optimal force by measuring the distance of tooth movement under different orthodontic force in different time. Methods: 32 patients were randomly divided into 4 groups. The right canine teeth of the maxilla were given an initial force of 50,150,250g of distal movement by group. The contralateral canine teeth did not add force, as the control group. The distance between left and right canine movement of all samples was measured at different times. Results: the rate of tooth movement was different in different time after force, which had statistical significance (P 0.01). The rate of tooth movement was also different in each group under different force values, and there was interaction between the two groups. Conclusion: for maxillary canine, when the orthodontic loading force is less than 100 g, the moving rate increases with the increase of force. But when more than 100 g, with the increase of force, the rate of tooth movement is not obvious.
【作者单位】：福建医科大学附属口腔医院;
【基金】：福建省卫生系统中青年骨干人才培养项目(编号:2014-ZQN-JC-21)
【分类号】：R783.5

【相似文献】