| Project/Area Number |
23792227
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Prosthetic dentistry
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| Research Institution | Osaka University (2012-2014)
Okayama University (2011) |
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Principal Investigator |
MINE Atsushi 大阪大学, 歯学研究科(研究院), 助教 (60379758)
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| Co-Investigator(Renkei-kenkyūsha) |
YATANI Hirofumi 大阪大学, 大学院歯学研究科, 教授 (80174530)
KUBOKI Takuo 岡山大学, 大学院医歯薬学総合研究科, 教授 (00225195)
大野 彩 岡山大学, 大学院医歯薬学総合研究科, 助教 (20584626)
|
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| Research Collaborator |
YOSHIDA Toshimasa
KUROSAKI Youko
MINO Takuya
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| Project Period (FY) |
2011-04-28 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 接着歯学 / 長期予後調査 / 接着ブリッジ / ブリッジ / 臨床データ蓄積システム |
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| Outline of Final Research Achievements |
Three-unit resin-bonded fixed partial prosthesis (Rb-FPP, n = 86) and Three-unit conventional fixed partial prosthesis (Co-FPP, n = 100) installed at the Fixed Prosthodontic Clinic of Okayama University Dental Hospital between April 1989 and March 1992 were clinically evaluated. The corresponding survival rate for Rb-FPP and Co-FPP were 69 % and 72 % after 10 years and 50 % and 46 % after 25 years respectively. There was no significant difference between the two groups (p = 0.88).
Regarding to the incidence of complications, “removal of FPP” was significantly higher for Co-FPP (p = 0.01). Cox proportional hazards test revealed that “FPP type”, “sex”, “age”, “number of remaining teeth”, “insertion position” and “abutment teeth condition” were not significant predictors of FPP failure (p = 0.82).
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