title: Computer simulation of orthodontic tooth movement using CT image-based voxel finite element models with the level set method.
abstract: Orthodontic tooth movement (OTM) is an adaptive biomechanical response of dentoalveolar components to orthodontic forces, in which remodeling of the alveolar bone occurs in response to changes in the surrounding mechanical environment. In this study, we developed a framework for OTM simulation by combining an image-based voxel finite element method, with a surface-tracking level set method using three-dimensional computer models. For a case study to demonstrate its capability of expressing clinical tooth movement, we observed displacement and rotation of the tooth under three types of force conditions. The simulation results demonstrate that the proposed simulation method has the potential to predict clinical OTM.
authors.affiliation: a Division of Orthodontics and Dental Orthopedics, Graduate School of Dentistry, Tohoku University , Aoba, Sendai 980-8575 , Japan.
authors.forename: Masakazu
authors.initials: M
authors.lastname: Hasegawa
authors.affiliation: b Department of Biomechanics, Institute for Frontier Medical Sciences, Kyoto University , 53 Kawahara-cho, Shogoin, Sakyo, Kyoto 606-8507 , Japan.|c Department of Micro Engineering, Graduate School of Engineering, Kyoto University , Sakyo, Kyoto 606-8501 , Japan.
authors.forename: Taiji
authors.initials: T
authors.lastname: Adachi
authors.affiliation: a Division of Orthodontics and Dental Orthopedics, Graduate School of Dentistry, Tohoku University , Aoba, Sendai 980-8575 , Japan.
authors.forename: Teruko
authors.initials: T
authors.lastname: Takano-Yamamoto
mesh_terms: D000539:Alveolar Process / Q000502:physiology; D016723:Bone Remodeling; D003198:Computer Simulation; D020342:Finite Element Analysis; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008962:Models, Theoretical; D009970:Orthodontics / Q000379:methods*; D013314:Stress, Mechanical; D014057:Tomography, X-Ray Computed; D014087:Tooth Movement Techniques
keywords: computational biomechanics; image-based model; level set method; orthodontics; tooth movement; voxel finite element models