A study on a development of a virtual simulator for dental education using the 3-D haptic modeling system

使用 3D 触觉建模系统开发牙科教育虚拟模拟器的研究

• 批准号: 13672019
• 负责人: AITA Hideki
• 金额: $ 2.3万
• 依托单位: HOKKAIDO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13672019/
• 关键词: virtual reality; haptic modeling system; dental training simulator; VR; 3次元触覚デバイス

This study tried to apply the haptic modeling system to a virtual simulator for dental education.In the dental clinical field, the sense of touch is considered most important for the mastery of various treatment techniques ; all dental school students are practiced in dentistry skills, such as tooth preparation, cavity filling, taking impressions, occlusal adjustments. Especially in prosthetic dentistry education, the fabrication of prostheses is regarded as a fundamental technique, and requires considerable class time for practical training.In virtual reality technologies, accommodating the sense of touch has been behind the practical use, and compares with the other senses such as vision and hearing. We focused on the haptic modeling system, the fundamental technology of which has been developed at the Massachusetts Institute of Technology Artificial Intelligence Lab. The haptic interface has a good quality of human-computer interaction by accommodating our sense of touch, so its use has spread not only in the field of the industrial design but also in the medical.First, we tried to simulate a process of waxing up utilizing a virtual reality system. The FreeForm modeling system enables easier control of the functional shape of the occlusal surface than former modification methods of handling control points of various free-form surfaces with the 2D mouse. Additionally, the haptic interfaces were extremely useful for resolving visual ambiguities ; the sense of touch leading to greater accuracy. Next, we tried to apply this system to the modification of an individual craniofacial bone model for surgical simulation. As a result, a haptic modeling system provided a significant benefit for removing metal artifacts, and reduced the amount of time required for modeling and modification.We affirmed that the use of this haptic modeling system provides significant benefit for dental education.

本研究尝试将触觉建模系统应用于牙科教学的虚拟模拟器中，在牙科临床领域，触觉被认为是掌握各种治疗技术的最重要因素，所有牙科学校的学生都在练习牙科技能，如牙齿准备，洞填充，取模，咬合调整。特别是在口腔修复学教育中，修复体的制作被视为一项基础技术，需要相当多的课堂时间进行实践训练。在虚拟现实技术中，触觉的适应一直落后于实际应用，并与视觉和听觉等其他感官相比较。本文重点介绍了马萨诸塞州理工学院人工智能实验室开发的触觉建模系统。触觉接口通过适应我们的触觉而具有良好的人机交互质量，因此它的使用不仅在工业设计领域，而且在医疗领域也得到了推广。首先，我们尝试使用虚拟现实系统来模拟上蜡过程。FreeForm建模系统比以前使用2D鼠标处理各种自由曲面的控制点的修改方法更容易控制咬合面的功能形状。此外，触觉界面对于解决视觉模糊非常有用;触觉导致更高的准确性。接下来，我们尝试将此系统应用于手术模拟的个体颅面骨模型的修改。因此，触觉建模系统提供了一个显着的好处，去除金属文物，并减少了建模和modified.We肯定，使用这种触觉建模系统提供了显着的好处牙科教育所需的时间。

项目成果

Hideki Aita et al.: "A New Method of Removing Metal Artifacts from 3D-CT Data for Rapid Prototyping"Maxillofacial Prosthet. 26. (2003)

Hideki Aita 等人：“一种从 3D-CT 数据中去除金属伪影以进行快速原型制作的新方法”颌面修复体。