| Project/Area Number |
03404057
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| Research Category |
Grant-in-Aid for General Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
補綴理工系歯学
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| Research Institution | HOKKAIDO UNIVERSITY |
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Principal Investigator |
UCHIYAMA Yoichi Professor and Chairman, Department of Fixed Prosthodontics, School of Dentistry Hokkaido University, 歯学部, 教授 (40005020)
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| Co-Investigator(Kenkyū-buntansha) |
ONO Ichiro Fukushima Medical College, School of Medicine, Associate Professor, 医学部, 助教授 (20125298)
WAKITA Minoru Hokkaido University, School of Dentistry, Professor, 歯学部, 教授 (40018916)
KISHINAMI Takeshi Hokkaido University, Faculty of Engineering, Professor, 工学部, 教授 (30001796)
NAKAMURA Sinji Hokkaido University, School of Dentistry, Professor, 歯学部, 教授 (80001791)
OHURA Takehiko Hokkaido University, School of Medicine, Professor, 医学部, 教授 (70000982)
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| Project Period (FY) |
1991 – 1993
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| Project Status |
Completed (Fiscal Year 1993)
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| Budget Amount *help |
¥32,800,000 (Direct Cost: ¥32,800,000)
Fiscal Year 1993: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1992: ¥4,000,000 (Direct Cost: ¥4,000,000)
Fiscal Year 1991: ¥27,500,000 (Direct Cost: ¥27,500,000)
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| Keywords | LASER Lithography / Jaw deformity / CT / MRI / 3-D measured data / Real size model / Crown restoration / CAD / CAM |
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| Research Abstract |
We tried to apply the newly developed industrial method "LASER Lithography" to the dental (medical) field. As this method is for the Rapid Prototyping of the industrial product, we can fabricate any kind of real shape model only with its contour data. So in this study we succeeded in fabricating some models as follows :
1.We fabricated the craniofacial skeletal model of the jaw deformity patient from CT data.
2.We fabricated the resin pattern of the crown from 3-D measured data of the prepared tooth and average tooth crown form. Then this resin pattern was converted to the metal through Lost Wax Casting Method.
3.Skin covered skeletal model including the brain was fabricated from MRI data.
4.Mountain model was fabricated from the geographical data.
5.Resin model of the dental arch was fabricated from 3-D measured data for orthodontic analysis.
6.Famous "Posselt's Figure" (Range of the mandibular movement measured at the incisal point) was fabricated from 3-D measured jaw movement data.
7.We confirmed the designed crown form using LASER Lithography through CAD/CAM process of titanium crown fabrication.
8.Enamel prism of the dog tooth was fabricated from traced contour data with microscopy.
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