| Project/Area Number |
13672014
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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 | The Nippon Dental University |
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Principal Investigator |
MASEKI Toshio The Nippon Dental University, School of Dentistry at Tokyo, Assistant professor, 歯学部, 講師 (50256997)
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| Co-Investigator(Kenkyū-buntansha) |
SHIROTA Azusa The Nippon Dental University, School of Dentistry at Tokyo, Instructor, 歯学部, 助手 (10307960)
NITTA Toshihiko The Nippon Dental University, School of Dentistry at Tokyo, Instructor, 歯学部, 助手 (20247042)
KIMISHIMA Tetsu The Nippon Dental University, School of Dentistry at Tokyo, Assistant professor, 歯学部, 講師 (90247023)
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| Project Period (FY) |
2001 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 2003: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2002: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2001: ¥1,100,000 (Direct Cost: ¥1,100,000)
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| Keywords | Confocal Laser Scanning Microscope / Sealing Property / Microleakage / Adhensive Materials / Dye Penetration Test / Fluorescence Image / Operative Dentistry / 歯質接着材料 / 接着性修復 |
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| Research Abstract |
The Confocal Laser Scanning Microscope (CLSM) was used in this study as nondestructive testing method.
Standardized cavities were prepared of extracted human teeth. The prepared specimen was restored with various adhesive systems experimentally. The restored specimens supplied to the dye penetration test with Rohdamine B solution.
Microleakage of the sectioned specimens were evaluated with the CLSM.
Conventionally, many researchers used technique of the dye penetration test that a microscope observed by pigment penetration and cutting of the later specimen for marginal sealing property of adhesive restoration.
However it was possible to examine it in a non destruction state by CLSM and the use of fluorescence pigment in this study.
Furthermore, examination was done which part a microleakage penetrate from the cavity margin. These results were reported in the Journal of Dental Research,80,81,82-Special Issue and the China-Japan Medical Conference 2002.
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