A long-term cohort study of resin bonded/conventional fixed partial prosthesis and development of a next-generation clinical data recording system

2014 Fiscal Year Final Research Report

• Project/Area Number: 23792227
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Prosthetic dentistry
• Research Institution: Osaka University (2012-2014); Okayama University (2011)
• Principal Investigator: MINE Atsushi 大阪大学, 歯学研究科(研究院), 助教 (60379758)
• 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)
• Research Collaborator: YOSHIDA Toshimasa ; KUROSAKI Youko ; MINO Takuya
• Project Period (FY): 2011-04-28 – 2015-03-31
• Keywords: 接着歯学 / 長期予後調査 / 接着ブリッジ / ブリッジ

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).

Free Research Field

接着歯学