| Project/Area Number |
15592044
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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 |
補綴理工系歯学
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| Research Institution | The University of Tokyo |
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Principal Investigator |
TOMIZUKA Ken The University of Tokyo, Faculty of Medicine, Lecturer, 医学部附属病院, 講師 (80251297)
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| Co-Investigator(Kenkyū-buntansha) |
TAKATO Tsuyoshi The University of Tokyo, Faculty of Medicine, Professor, 医学部附属病院, 教授 (90171454)
MORI Yoshiyuki The University of Tokyo, Faculty of Medicine, Lecturer, 医学部附属病院, 講師 (70251296)
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| Project Period (FY) |
2003 – 2004
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| Project Status |
Completed (Fiscal Year 2004)
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| Budget Amount *help |
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2004: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2003: ¥2,300,000 (Direct Cost: ¥2,300,000)
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| Keywords | distraction osteogenesis / dental implant / excessive occlusal load |
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| Research Abstract |
This is a morphlogical study of tissue remodeling aroud dental implants that were placed in distracted mandible. Three months after extraction of premolars of mandible, horizontal distraction of the alveolar ridge in dogs was performed. Alveo-Wider【○!R】 (Okada Medical Supply Co.Ltd.) was used as distracting apparatus. After completin of distraction, dental implants (Replace Select【○!R】, 3.5mm diameter, 10mm length, Nobel Biocare) were placed into the distracted areas. Three months after placement of implants, abutments and crowns were placed. Some implants were under excessive occlusal load. Implants with surrounding tissue were dissected and undecalcified sections were prepared. The sections were stained with toluidine blue and obsereved under light microscopy. Histologically, all of the implants in horizontally distracted alveolar ridges acquired osseointegration. Mobility was not detected by Periotest【○!R】.
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