Application of virtual reality force feedback haptic device for oral implant surgery
Application of virtual reality force feedback haptic device for oral implant surgery
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DOI：
10.1111/j.1600-0501.2006.01218.x
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发表时间：
2006-12-01
影响因子：
4.3
通讯作者：
Yatani, Hirofumi
中科院分区：
文献类型：
--
作者：
Kusumoto, Naoki;Sohmura, Taiji;Yatani, Hirofumi
一种用于植入手术的新型支撑系统进行了试验，该系统涉及使用虚拟现实力反馈触觉设备操纵颌骨的三维（3-D）计算机断层扫描（CT）图像。通过该虚拟系统，可以实现带振动和对角机头声音的钻孔骨触觉体验。它有望用于培训没有经验的牙医和教育牙科学生。对口腔种植体插入过程的模拟进行了研究。在考虑骨的情况下，通过操作触觉装置将一个简单的圆柱形种植体模型插入颌骨的三维图像中。采用矩形实心物体作为骨支撑手术模板，并从该物体中减去骨和种植体的形状。通过这种方式，实现了带骨印模的手术模板的CAD和植入物引导孔的插入。用计算机控制的铣床（CAM）铣削手术模板。手术模板的准确性检查与无牙石膏骨模型有六个孔种植插入。对口腔种植体植入过程进行模拟，并对手术模板进行CAD/CAM设计。将铣削后的手术模板贴合在石膏骨模型上，并拍摄CT图像。对手术模板引导孔的横截面进行成像，测量手术模板引导孔与颌骨钻孔之间的不对中程度。平均误差小于0.2 mm，表明该系统具有应用于口腔种植手术的潜力。
A novel support system for implant surgery was tried out, which involves manipulating a three-dimensional (3-D) computed tomography (CT) image of a jawbone with a virtual reality force feedback haptic device. Through this virtual system, the haptic experience of bone drilling with vibration and the sound of the contra-angle handpiece could be realized. It is expected to be useful for training inexperienced dentists and educating dental students. The simulation of oral implant insertion was also focused on. A simple cylindrical implant model was inserted into a 3-D image of the jawbone by operating the haptic device, with consideration of bone condition. A rectangular solid object that served as a bone-supported surgical template was adopted, and the shapes of the bone and the implant were subtracted from the object. In this manner, the CAD of the surgical template with impressions of the bone and the implant guide holes for insertion was realized. The surgical template was milled with a computer-controlled milling machine (CAM). Surgical template accuracy was examined with an edentulous gypsum bone model having six holes for implant insertion. Simulation of the oral implant insertion and CAD/CAM of the surgical template were conducted. The milled surgical template was fitted on the gypsum bone model, and CT images were taken. Cross-sections of the guide holes in the surgical template were imaged, and misalignment between the guide holes of the surgical template and the drilled holes on the jawbone was measured. The average misalignment is less than 0.2 mm, and it indicates that the present system is potentially applicable to oral implant surgery.