Miyakawa O, Shiokawa N, Matsuura T, Hanada K
J Biomech. 1985;18(4):277-84. doi: 10.1016/0021-9290(85)90845-0.
This paper describes a new simulation method to analyze the initial behavior of the total system comprising orthodontic appliance, teeth, and their supporting structures. It is based on a finite element method which additionally takes account of a rotational degree of freedom. Beam and rod elements are used for finite element idealization of orthodontic appliance. Through spring elements it is connected with the teeth supported by the alveolar structures. The technique of 'initial strain' is introduced so as to analyze the effects of a gable bend and activation on the force system which is delivered by the orthodontic appliance. As compared with the photoelastic technique hitherto used, this method serves to investigate systematically and quantitatively the initial aspect of orthodontic tooth movement.
本文描述了一种新的模拟方法，用于分析由正畸矫治器、牙齿及其支持结构组成的整个系统的初始行为。该方法基于有限元法，并额外考虑了旋转自由度。梁单元和杆单元用于正畸矫治器的有限元理想化。通过弹簧单元，矫治器与由牙槽结构支持的牙齿相连。引入“初始应变”技术，以分析山墙弯曲和激活对正畸矫治器传递的力系统的影响。与迄今使用的光弹性技术相比，该方法有助于系统地、定量地研究正畸牙齿移动的初始情况。
