AN OPTIMAL DESIGN METHOD OF ARTICULATOR UNDER MOVEMENT TRAJECTORY CONSTRAINT
This paper presents the parameter optimization design method based on the likelihood function under movement trajectory constranint. It can be used for contraposition occlusal surface on centric occlusion to determine the system parameters quickly and accurately. This paper discusses acquisition of human mandible movement tracking data using dual-electromagnetic sensors, fitting of spatial movement trajectory using Catmull-Rom spline curve, and jointing and matching of model data acquired from multiple measurement sources with movement trajectory, so as to complete a fully digital reconstruction of human stomatognathic system and finally accomplish optimized calculation of articulator’s parameters by constructing maximum likelihood function. In order to verify algorithm feasibility, the method discussed in this paper is used to calculate articulator’s parameters for a dental patient, which had passed movement simulation. The results show that this algorithm can accomplish tracking and fitting of movement trajectory, and can satisfy conditions required by dental restoration.
Articulator Optimal Design Motion Tracking Motion Simulation
XU Qiang LIAO Wen He DAI Ning YU Qing ZHANG ChangDong
College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics &Astronautics, J College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics &Astronautics, J College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics &Astronautics, J Department of Prosthodontics , Stomatology Hospital Affiliated to Medical School , Nanjing Universit
国际会议
北京
英文
251-255
2010-11-23（万方平台首次上网日期，不代表论文的发表时间）