Affiliations: [a] Department of Chemical Engineering, Fuzhou University, Fuzhou, Fujian, China | [b] Department of Mechanical Engineering, Fuzhou University, Fuzhou, Fujian, China | [c] Department of Orthodontics, Affiliated Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian, China
Correspondence:
[*]
Corresponding author: Yong-Qing Cai, Department of Chemical Engineering, University of Fuzhou, Fuzhou, Fujian, China. Tel.: +86 15806033423; E-mail:caiyongqing33@126.com
Abstract:
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.
Keywords: Finite element method, initial movement, center of rotation, stress, movement combination
