| 摘要 |
PROBLEM TO BE SOLVED: To read the operation state of a using instrument, a state inside the mouth an X-ray photo inside the mouth and the data of a patient, etc., just by moving the line of sight without moving the face during treatment work by making an operator loads a device on a head part and use it. SOLUTION: The driving data of the instruments 11-13 or the like, the X-ray photos from a camera 6 inside the mouth and a personal computer 7, and patient individual data from the personal computer 8, etc., are processed in the personal computer 5, signal-processed in a converter 9 and displayed at the display 11 of an HMD 10. The HMD 10 is loaded on the head part of the operator for use, and during an operation, the operator reads display displayed at the display 11 by moving the line of sight.
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