Development of clinical denistry instructuion simulator using visual reality system

利用视觉现实系统开发临床牙科教学模拟器

• 批准号: 05507004
• 负责人: ISHIKAWA Tastuya
• 金额: $ 35.46万
• 依托单位: TOKYO DENTAL COLLEGE
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (A)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-05507004/
• 关键词: clinical dentistry; virtual reality system; simulation; image process; コンピュータ画像処理; 技術伝承; マニピュレータ

In this age of advanced and complicated clinical dentistry, knowledge acquisition through books and training methods using manikins cannot provide adequate training results in diagnoses, treatment planning and communication with patients. For example, dentists who have received training through manuals and manikins will be faced with tremendous technical and psychological burdens when engaging in actual therapy. The goal of this project is to develop the new computer-aided clinical dentistry educational system based on virtual reality (VR) technology that assumes diverse situations encountered in a clinic and can promote the efficiency of dental training. A UNIX workstation specially designed for VR system, including multiple CPUs for parallel processing to generate rendered 3D graphics and stereophonic sounds in real time, was installed. The original output system, i.e.a head-mounted display (HMD), has been updated to the see-through type HMD with low weight and high visual quality. P … More ositional information of user's hand was transmitted with a replica of dental drill head, while the three-dimensional position information is sensed with three coils in a magnetic environment. In addition, a digitizing system providing seven links with seven degrees of freedom like the human arm was developed to evaluate hand movements. This digitizer has lately been replaced by a new system with six arms based on the parallel mechanism to improve the locating accuracy. The dental operating simulations for caries cavity removal and tooth preparation originally developed on this system have been sophisticated both invisual and sound effects to represent the real as practical as possible. The advantages of the application using virtual reality, providing 1) supplementing intermediate and manikin-based training in the process of practical education, and 2) enables training in the risk management as when the patient's tongue moves suddenly, encouraged dental trainees effectively to understand the skill of clinical dentistry. Our further studies should be continued to complete the appropriate feedback system and to spread the range of simulation in dentistry. Less

在这个先进而复杂的临床牙科时代，通过书籍和使用人体模型的培训方法获取知识无法在诊断，治疗计划和与患者沟通方面提供足够的培训结果。例如，通过手册和人体模型接受培训的牙医在从事实际治疗时将面临巨大的技术和心理负担。本项目的目标是开发基于虚拟现实（VR）技术的新型计算机辅助牙科临床教育系统，该系统假设诊所中遇到的各种情况，并可提高牙科培训的效率。安装了一个专门为虚拟现实系统设计的UNIX工作站，包括多个CPU，用于并行处理，以真实的时间生成渲染的3D图形和立体声。原始的输出系统，即头戴式显示器（HMD），已被更新为具有低重量和高视觉质量的透视型HMD。P ...更多信息 使用者手部的位置信息是通过一个牙科钻头的复制品来传输的，而三维位置信息则是在磁场环境中通过三个线圈来感测的。此外，开发了一个数字化系统，提供了七个链接与七个自由度，如人类的手臂，以评估手的运动。该数字化仪最近被基于并联机构的六臂新系统所取代，以提高定位精度。在此系统上开发的龋洞去除和牙体预备的牙科手术模拟，在视觉和声音效果上都是复杂的，以尽可能真实地代表真实的。使用虚拟现实的应用程序的优点是：1）在实践教育过程中补充中间和基于模型的培训，2）当患者的舌头突然移动时，可以进行风险管理培训，鼓励牙科学员有效地了解临床牙科技能。我们的进一步研究应继续完善适当的反馈系统，并扩大模拟在牙科的范围。少

项目成果

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Hiroyuki Kuroda 等人：“训练人体模型的工作点位置与家庭坐姿之间的关系”《牙科杂志》94. 647-650 (1994)。

三輪道雄: "デジタルTV,AVパソコン,携帯情報端末を生んだマルチメディア技術のはなし 第8章バーチャルリアリティ(VR)" 工業調査会, 293 (1995)

Miwa Michio Miwa：“催生数字电视、AV个人电脑和移动信息终端的多媒体技术的故事第8章虚拟现实（VR）”工业研究协会，293（1995）

Maeda Y.: "A multimedia system for infection contorol education" J.Osaka Univ Dent Sch. 34. 29-35 (1994)

前田 Y.：“用于感染控制教育的多媒体系统”J.Osaka Univ Dent Sch.。

堤 定美: "CAD/CAMの歯科応用の始動" ザ・クインテッセンス. 1993 Year book. 37-41 (1993)

Sadami Tsutsumi：“CAD/CAM 牙科应用的开始”The Quintessence 1993 年鉴（1993 年）。

南部敏之: "歯科臨床教育への人工現実感システムの応用" 歯科人工知能研究会雑誌. 4. 53-58 (1994)

Toshiyuki Nanb​​u：“人工现实系统在牙科临床教育中的应用”《牙科人工智能研究组杂志》，4. 53-58 (1994)。