The Force Requirements for Tooth Movement Part I: Tipping and Bodily Movement
The Force Requirements for Tooth Movement Part I: Tipping and Bodily Movement
复制标题
牙齿移动的力量要求第一部分：倾斜和身体移动
作者：
B. Lee
摘要 关于力和牙齿移动之间关系的具体数据不仅对于促进非创伤性正畸治疗至关重要，而且还为矫治器设计奠定良好的基础。虽然正畸牙齿移动的广泛方法似乎是应用倾斜和/或身体移动，但尚未对这两种类型的移动进行科学比较。本文描述了重复斯托里和史密斯对所施加的力238与倾翻运动速率及其延伸以包括身体运动之间的关系的研究的实验。作为正畸治疗的一部分，二十名需要上尖牙向远侧移动的青少年男性患者每人都安装了经过校准的尖牙回缩弹簧。这些矫治器的设计目的是在口腔一侧引起身体运动，同时在另一侧引起倾斜运动，初始施力是相同的，并且在回缩弹簧激活一次后，实验持续长达十一周。将这些实验的结果与其他研究人员的结果进行了比较，并对过去有关各种牙齿移动理论的争议的原因进行了解释。
Abstract Specific data on the relation between force and tooth movement is essential not only to facilitate non-traumiatic orthodontic treatment but also to establish a sound basis for appliance design. Whilst the broad approaches to orthodontic tooth movement appear to be the application of tipping and/or bodily movement, no scientific comparison between these two types of movement has yet been made. This article describes experiments which repeat investigations of Storey and Smith into the relation between the force applied 238 and the rate of tipping movement and their extension to include bodily movement. Twenty adolescent male patients requiring distal movement of upper cuspid teeth as a part of orthodontic treatment were each fitted with calibrated cuspid retraction springs. The appliances were designed to induce bodily movement on one side of the mouth concurrently with tipping movement on the other, Initial force applications were identical, and the experiments lasted for up to eleven weeks following one activation of the retraction springs. The results of these experiments were compared with those of other workers, and an explanation of the causes of the past controversy regarding various theories of tooth movement is offered.