• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Studies on the veneered titanium crown with resin composites for a clinical use

Research Project

Project/Area Number 07672121
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 補綴理工系歯学
Research InstitutionShowa University

Principal Investigator

FUJISHIMA Akihiro  Showa Univ.School of Dentistry, Assistant Prof., 歯学部, 講師 (50209045)

Co-Investigator(Kenkyū-buntansha) FUKUNAGA Hideki  Showa Univ.School of Dentistry, Assistant Prof., 歯学部, 講師 (50199254)
TAMAKI Yukimichi  Showa Univ.School of Dentistry, Associate Prof., 歯学部, 助教授 (80197566)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1996: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1995: ¥1,500,000 (Direct Cost: ¥1,500,000)
KeywordsTitanium / Veneered crown with resin composite / Titanium casting / Sandblasting / Alumina / Bond strength / Non-retention beads method / チタン / 接着 / 硬質レジン / 前装冠
Research Abstract

The structure of retention beads prepared on the wax pattern was successufully reconstructed on the titanium castings by a centrifugal casing method. However, SEM observation indicated that investment material still remained on the surface of the castings among the retention beads even after sandblasting. Therefore, we aimed to apply a non-retention beads method on the metal frame for veneered titanium crowns.
We at first examined the treating conditions for sandblasting using three average particle sizes of alumina on the plates of cp titanium (cp Ti) and cobalt-chrome allowy (Co-Cr) as a control. EDX analyzes showed the amount of alumina on the surface was 33-45 wt% on cp Ti and 22-42wt% on Co-Cr, respectively. These results suggested that the lower pressure and shorter treating time were suitable to perform sandblasting for titanium than for other dental alloys.
Furthermore, we need more information on the bonding surface of both metal and alumina plates to clarify the bonding mechanism of the surface of the metal sandblasted by alumina particles. We examined bonding strengths of commercial resin bonding systems to cp titanium with sandblasting using three different sizes of alumina particles (50mum, 110mum and 250mum). Sandblasting with 250mum alumina particles showed the highest bonding strength. The bonding strength increased with the increase of the size of alumina particles. However, there were no statistically significant differences among the strength from 110mum and 250mum, and polished surface with 50mum. Bonding strength for sintered alumina plates was significantly lower than that of titanium on the commercial NMC and CSD bonding systems that had excellent bonding for titanium.
I suggest that the existence of alumina on titanium surface by sandblasting with alumina particles was not useful to improve bonding properties of resin composites on the sandblasted surface of cp titanium.

Report

(2 results)
  • 1996 Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] 藤島昭宏: "チタンを用いた硬質レジン前装冠製作に関する基礎的研究" 歯科材料・器械. 14(S25). 112-113 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Akihiro Fujishima: "Shear bond strength of four comercial bonding system to cp Ti" Journal of Dental Materials. 11. 82-86 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 藤島昭宏: "チタンを用いた硬質レジン前装冠製作に関する基礎的研究(第2報)表面処理が硬質レジンの接着性に及ぼす影響" 歯科材料・器械. 14(S26). 78-79 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Akihiro Fujishima: "Contamination with alumina on titanium by sandblasting" Proceeding of the 3rd international symposium on titanium in dentistry. 225-225 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Akihiro Fujishima: "Influence of alumina sandblasting for bonding of resin composite to cp titanium" Journal of Dental Research. 74(S). 174-174 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Akihiro Fujishima: "Factors affecting the bonding of silicoater MD for resin veneering to cp titanium" J.Showa Univ.Dent.Soc. 17. 41-47 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] A.Fujishima, Y.Fujishima, Jack L Ferracane: "Shear bond strength of four commercial bonding system to cp Ti" Dental Materials. 11. 82-86 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] A.Fujishima, Y.Fujishima, Jack.L Ferracane, T.Miyazaki, A.Shiba: "Factors affecting the bonding of Silicoater MD for resin veneering to cp Ti" J Showa Dent Soc. 17. 41-47 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 藤島昭宏: "チタンを用いた硬質レジン前装冠製作に関する基礎的研究" 歯科材料・器械. 14(特25). 112-113 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Akihiro Fujishima: "Shear band Strength of four commercial bonding Systems to cpti" Journal of Dental Materials. 11. 82-86 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 藤島昭宏: "チタンを用いた硬質レジン前装冠製作に関する基礎的研究(第2報)表面処理が硬質レジンの接着性に及ぼす影響"

    • Related Report
      1995 Annual Research Report

URL: 

Published: 1995-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi