| Project/Area Number |
06557105
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 試験 |
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| Research Field |
補綴理工系歯学
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| Research Institution | Tokyo Medical and Dental University |
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Principal Investigator |
MIYAIRI Hiroo Tokyo Medical and Dental University, Inst Med Dent Engng, Professor, 医用器材研究所, 教授 (50013892)
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| Co-Investigator(Kenkyū-buntansha) |
KIKUCHI Masafumi Tohoku Univ, Faculty of Dentistry, Assistant, 医用器材研究所, 助手 (50250791)
FUKUDA Hideaki Tokyo Medical and Dental University, Inst Med Dent Engng, Assistant, 医用器材研究所, 助手 (50014163)
NAGAI Mashiro Tokyo Medical and Dental University, Inst Med Dent Engng, Assistant, 医用器材研究所, 助手 (10013971)
TAKAKUDA Kazuo Tokyo Medical and Dental University, Inst Med Dent Engng, Associate Professor, 医用器材研究所, 助教授 (70108223)
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| Project Period (FY) |
1994 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥10,200,000 (Direct Cost: ¥10,200,000)
Fiscal Year 1996: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1995: ¥4,600,000 (Direct Cost: ¥4,600,000)
Fiscal Year 1994: ¥3,700,000 (Direct Cost: ¥3,700,000)
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| Keywords | Tooth Cutting / Handpiece / Computer Aided Dentistry / Angle Measurement / Tooth Preparation |
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| Research Abstract |
1. The relative angles of a handpiece to an arch are successively measured by attaching the three dimensional position sensors to an arch and a handpiece.
2. Calibrations of the angle measuring system reveals that metals used for prosthodontics and the handpiece do not affect the accuracy of the data.
3. Calibrations over the whole range of the clinically possible areas of usage of handpieces, the maximum error in angle measurement is less than 0.72, which is well below the allowable error.
4. The HMD display device is developed which display the amount of rotations to realize the correct angles of the handpiece to the arch.
5. Parallel preparation experiments are carried out with several dentists. The accuracy of the preparation is considerably increased in every cases.
6. Thus it was successively demonstrate that the usefulness of the system.
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