| Project/Area Number |
05671619
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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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 | TOKYO NEDICAL AND DENTAL UNIVERSITY |
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Principal Investigator |
SUZUKI Tetsuya (1994) Tokyo Medical and Dental University Faculty of Dentistry Resarch associate, 歯学部, 助手 (60179231)
小林 賢一 (1993) 東京医科歯科大学, 歯学部, 講師 (00170316)
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| Co-Investigator(Kenkyū-buntansha) |
YATABE Masaru Tokyo Medical and Dental University Faculty of Dentistry Reserch associate, 歯学部, 助手 (10182354)
ISHINABE Satoshi Tokyo Medical and Dental University Faculty of Dentistry Reserch associate, 歯学部, 助手 (10232323)
KOBAYASHI Kenichi Tokyo Medical and Dental University Faculty of Dentistry Lecturer, 歯学部, 講師 (00170316)
鈴木 哲也 東京医科歯科大学, 歯学部, 助手 (60179231)
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| Project Period (FY) |
1993 – 1994
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| Project Status |
Completed (Fiscal Year 1994)
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| Budget Amount *help |
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1994: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1993: ¥1,700,000 (Direct Cost: ¥1,700,000)
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| Keywords | Complete denture / Denture foundation / Relief / B-mode / Torus palatinus / Decreasing rate in the mucosal thickness / 口蓋隆起 / リリ-フ域 / 粘弾性測定 / リリーフ域 |
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| Research Abstract |
Examining of the compressibility of the denture foundation is very important for construct of a denture. The areas, especially the torus palatinus area, should not be pressured excessively by a denture and relief is usually necessary for such specific areas.
The purpose of this study was to investigate the compressibility of the denture foundation and to determine the amount of relief in thickness over the specific areas.
The main results were follows :
1.Decrease in the mucosal thickness under maximum occlusal force was about 0.3mm in averages.
2.Decreasing rate in the mucosal thickness under maximum occlusal force was greater in a mandible than in a maxilla.
3.Judging from the decrease in the mucosal thickness by relief procedures, it was found that 0.5mm relief in thickness was necessary in a case of a severe torus palatinus and 0.25-0.50mm relief in a moderate one.
4.Even in a case without the existance of torus palatinus, about 0.25mm relief in thicknesss was desirable over the incisive papilla and median palatine suture areas.
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