计算机辅助的牙种植手术规划系统的分析.docx

种植方案。本文提出的牙长轴走向观察技术可以让医生直观的观察牙长
轴的具体走向和沿牙长轴重建的剖切面图像,从而确定最大的种植深度和最合理的种植角度。文本提出的动态更新样条线技术可以在初次标记点植入不合理的情况下动态地更新原样条线而不必重新植入标记点,大大节省了医生的工作量。
本课题基于计算机图形学、图像处理和计算机可视化等技术,主要研究内容包括:
(1)读取 标准的医学图像并进行三维模型的重建
(2)虚拟剖切面生成以及辅助的测量技术
(3)虚拟种植手术仿真
关键字:牙种植,三维重建,窗宽窗位调节,伪彩色显示,虚拟剖切面, 虚拟手术仿真
RESEARCH ON PUTER-AIDED SURGERY PLANNING FOR IMPLANTATION OF ARTIFICIAL DENS
ABSTRACT
Computer-assisted dental implant surgical planning software provides physicians with an observation, measurement and analysis software platform, doctors can analyze rationally bone situation and bone three-dimensional structural in defect region before the operation., further, determine a reasonable planting location, planting depth, and planting angle, finally work out a specific surgery. Assisted planning software has changed the traditional surgical planning methods by observing plain film X so that doctors can carry out in the planting region prior to surgery intuitional observation, accurate measurement and virtual surgery simulation and so on, greatly increased the intuitive, security, accuracy of implant surgery.
Lab with Shanghai East Hospital dental worked closely to develop puter-assisted implant surgery planning system applied to dental. We repeatedly visit to the East hospital and made a fruitful discussion with doctors. We design the surgical planting system interface and features according to doctor’s needs and conveniences. We debug and tested the system by a large number of dental data provided by the East hospital, and
initially used in clinical surgery planting.
This paper developed a system with absorbing the advantages of similar mercial software and added some features which are not available in most of the software, provided doctors with more practical technologies, such as observing of the axis of tooth toward, translating of vectors, dynamic updating of spline curve and so on. Most of mercial-assisted planning software generate virtual slices which is not along the axis of the toot