Computer-based Dental Simulation System with Haptics

描述：近年来，模拟技术的快速发展对临床牙科的培训产生了显着的影响。计算机生成的虚拟现实和触觉设备的引入，有可能在广泛的技能获得方面进一步改善临床培训。鉴于修复性牙科手术是在复杂的3D空间进行的计划干预，VR的出现将允许学生和临床医生在虚拟3D世界中练习技能获取。这个项目的目的是让一个基于计算机的模拟系统发挥作用。我们打算开发一个牙齿治疗计划系统，该系统将整合来自不同成像技术的信息，并将适应结果数据集的内在三维。理想的规划环境应该呈现计算机在3D空间中生成的成像数据的立体3D重建。它应该允许操作员以自然、直接和容易的方式在3D中直接交互。该系统将允许对临床医生可能遇到的各种牙齿准备进行可信的模拟。通过结合牙齿特定的微型CT扫描、微研磨和高分辨率摄影图像，数据将被共同注册并作为单个3D对象显示。结果将是一个具有照片真实感的牙齿三维体素模型。该系统将允许实时处理多模式3D数据。此外，该系统还将提供一些牙科器械，用于牙齿准备和整形。3D图像将可以在所有旋转轴上移动，但可以在需要时固定在所需的位置。一个类似牙科手机的传感器将在电脑屏幕上显示为计算机生成的虚拟手机。它可以用来进行牙齿准备程序。虚拟仪器在用户手中的位置将被校准，使得用户感觉它处于相同的方向和空间位置。通过使用触觉反馈力，将有可能模拟实际牙齿准备的感觉。

DESCRIPTION: In recent years training in clinical Dentistry has been significantly impacted by the rapid growth of simulation technology. The introduction of computer generated Virtual Reality, together with haptic devices, have the potential to further improve clinical training across a broad range of skills acquisition. Given that a restorative Dental procedure is a planned intervention in a complex 3-D space, the advent of VR would allow the student, and clinician alike, to practice skills acquisition in a virtual 3D world. The Aim of this project is to put a computer-based simulation system to work. We intend to develop a tooth treatment planning system that will integrate information derived from different imaging techniques and will accommodate the intrinsic three-dimensionality of the resulting data set. An ideal planning environment should present a stereo 3D computer-generated reconstruction of the imaging data in a 3D space. It should allow the operator to interact directly in 3D in a natural, direct and easy manner. This system will allow for a believable simulation of a wide variety of tooth preparations that clinicians could encounter. By combining tooth-specific micro-CT scans, microgrindings, and high-resolution photographic images, data will be co-registered and displayed as a single 3D object. The result will be a photo realistic, 3-D voxel model of a tooth. The system will allow for real-time manipulation of the multimodal 3D data. Additionally, the system will provide a number of Dental instruments for tooth preparation and shaping. The 3D image will be moveable in all axis of rotation but can be fixed in a desired position when needed. A sensor resembling a Dental hand piece will appear as a computer generated virtual hand piece on the computer screen. It can be used to perform tooth preparation procedures. The position of the virtual instrument in the users hand will be calibrated in such a way that the user perceives it to be in the same orientation and spatial position. Through the use of haptic force-feedback it will be possible to simulate the sensation of actual tooth preparations.