title: Personalized Orthodontic Accurate Tooth Arrangement System with Complete Teeth Model.
abstract: The accuracy, validity and lack of relation information between dental root and jaw in tooth arrangement are key problems in tooth arrangement technology. This paper aims to describe a newly developed virtual, personalized and accurate tooth arrangement system based on complete information about dental root and skull. Firstly, a feature constraint database of a 3D teeth model is established. Secondly, for computed simulation of tooth movement, the reference planes and lines are defined by the anatomical reference points. The matching mathematical model of teeth pattern and the principle of the specific pose transformation of rigid body are fully utilized. The relation of position between dental root and alveolar bone is considered during the design process. Finally, the relative pose relationships among various teeth are optimized using the object mover, and a personalized therapeutic schedule is formulated. Experimental results show that the virtual tooth arrangement system can arrange abnormal teeth very well and is sufficiently flexible. The relation of position between root and jaw is favorable. This newly developed system is characterized by high-speed processing and quantitative evaluation of the amount of 3D movement of an individual tooth.
authors.affiliation: College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Mailbox 357, 29 Yudao Street, Qinhuai Dist, Nanjing, 210016, People's Republic of China, baojia117@126.com.
authors.forename: Cheng
authors.initials: C
authors.lastname: Cheng
authors.forename: Xiaosheng
authors.initials: X
authors.lastname: Cheng
authors.forename: Ning
authors.initials: N
authors.lastname: Dai
authors.forename: Yi
authors.initials: Y
authors.lastname: Liu
authors.forename: Qilei
authors.initials: Q
authors.lastname: Fan
authors.forename: Yulin
authors.initials: Y
authors.lastname: Hou
authors.forename: Xiaotong
authors.initials: X
authors.lastname: Jiang
mesh_terms: D003198:Computer Simulation; D006801:Humans; D007568:Jaw / Q000473:pathology*; D009970:Orthodontics / Q000379:methods*; D014087:Tooth Movement Techniques; D014092:Tooth Root; D014584:User-Computer Interface