ABE Toshiyuki Aichi -Gakuin University, Dept.of Fixed Prosthodontics School of Dentistry Associate Professor, 歯科補綴学, 講師 (80231116)
ITO Yutaka Aichi -Gakuin Univeisity, Dept.of Fixed Prosthodontics School of Dentistry Professor, 歯科補綴学, 教授 (20139950)
FUJIMOTO Hideo Nagoya Institute of Technology, Aculty of engineering Professor, 工学部, 教授 (60024345)
NAKAMURA Takashi Nagoya Institute of Technology, Aculty of engineering Professor, 工学部, 教授 (40135314)
SUMI Atsuko Aichi -Gakuin Univeraity, Dept.of Fixed Prosthodontics School of Dentistry Asistant, 歯科補綴学, 助手 (90329615)
|Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2002: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 2001: ¥2,000,000 (Direct Cost: ¥2,000,000)
The Virtual Reality (VR) technology has been paid more attention recently as a new human-computer interface. The application of VR technology to such fields as building, mechanical engineering, medical care, welfare, amusement is largely promising and a few examples has been reported. One of the advantages of using VR technology is that an operation, which may be dirty or sometimes even dangerous, can be done easily and repeatedly in a virtual world. Thus, the operator learns experience and skill economically and safely. In this paper, the application of VR technology to dentistry was studied as one characteristic case of VR technology for dental training. A VR dental training system was proposed in this research. A virtual patient was created, and a system, in which direct dental operations can be done real timely through dental mirror and hand piece, was constructed.
There are problems with the lack of reality in dental training using a mannequin. In dealing with such problems, we suggest in this research a dental training system with application of virtual reality technology. In our research, a virtual environment and a virtual patient were produced in a virtual space, in which dental mirror and hand pieces can be operated real timely. In order to be aware of and to avoid possible dangers in training the tongue of the patient is moved randomly, and a warning sound and a signal of blood are given from a contact judgment when the drill contacts tongue or buccal. The effectiveness of the system with danger warning was confirmed with experiments. Furthermore, the presentation of force, which is very important in dentistry, was tried, and the avoidance of force-sensible mist ouch to tongue or buccal was also realized. Finally, the feather-touch training in tooth cutting was carried out, in which the acquisition of force information and the visualization of force were realized and a good effect confirmed.