Numerical analysis of tooth movement in different plans of transparent tooth correction therapies.
BACKGROUND
The objective of this study was to investigate how treatment strategies in the same treatment affected the canine's initial displacement and the stress in periodontal ligament using three-dimensional finite element analysis. And to find out the way to design an effective treatment plan.


METHODS
Based on computed tomography images of the teeth and their supporting tissues, solid models were used to build finite element models. Three treatment plans of three different transparent tooth correction therapies finite element-analyses were operated.


RESULTS
The canine's initial displacement and stresses' distribution in periodontal ligament were obtained.


CONCLUSIONS
For rotation movement, the canine should rotate along tooth long axis, and not combine with other kinds of tooth movement as possible. For translation movement, the combination of translation and inclination movement is helpful for the treatment.
['Cai|Yong-Qing|YQ|', 'Yang|Xiao-Xiang|XX|', 'He|Bing-Wei|BW|', 'Yao|Jun|J|']
D001696:Biomechanical Phenomena D003198:Computer Simulation D020342:Finite Element Analysis D006801:Humans D007180:Incisor D008954:Models, Biological D009970:Orthodontics D010513:Periodontal Ligament D013314:Stress, Mechanical D014087:Tooth Movement Techniques
stress Finite element method center of rotation initial movement movement combination