| Project/Area Number |
08672213
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Conservative dentistry
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| Research Institution | Tsurumi University |
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Principal Investigator |
IWASE Hirokazu Tsurumi University School of Dental Medicine, Instructor, 歯学部, 助手 (70151735)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAMOTO Takatsugu Tsurumi University School of Dental Medicine, Instructor, 歯学部, 助手 (20260995)
鮎澤 重之 鶴見大学, 歯学部, 助手 (10267536)
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| Project Period (FY) |
1996 – 1998
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| Project Status |
Completed (Fiscal Year 1998)
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| Budget Amount *help |
¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1998: ¥100,000 (Direct Cost: ¥100,000)
Fiscal Year 1997: ¥300,000 (Direct Cost: ¥300,000)
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| Keywords | CAD / CAM System / Ceramic Inlay / Diamond Disks / CAM / 切削器具 / セラミック |
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| Research Abstract |
Two diamond disks with different surface roughness were used. Ten cylindrical ceramics were reduced with each diamond disks. The time required for the same amount of reduction of ceramic block was measured as a milling efficacy. The wear of the diamond disk was also measured.
The results were as follows :
1. For the coarse diamond disk, the milling efficacy did not drop after ten uses. On the other hand, the fine diamond disk showed rapid drop to approximate 40% comparing with a new diamond disk.
2. The wear loss after milling 10 blocks were 24.2 μm at the surface level and 22.5 μm at the edge level for the coarse diamond disk. The fine diamond disks showed wear of 3.0 μm at the surface and 1.2 μm at the edge.
3. By SEM observation of the coarse diamond disks, dull edge and loss of diamond particles were more remarkable than those of the fine disks.
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