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Clinical Investigation for Long-term Performances of Restorations and Establishment of Criteria for Replacement

Research Project

Project/Area Number 09307046
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Conservative dentistry
Research InstitutionTsurumi University

Principal Investigator

NAKAMURA Jiroh  Tsurumi University, School of Dental Medicine, Professor, 歯学部, 教授 (90064336)

Co-Investigator(Kenkyū-buntansha) IWAKU Masaaki  Niigata University School of Dentistry, 歯学部, 教授 (70013927)
TAGAMI Junji  Tokyo Medical and Dental University, Professor, 歯学部, 教授 (50171567)
KOHNO Atsushi  Tsurumi University, School of Dental Medicine, Professor, 歯学部, 教授 (00064345)
SHINTANI Hideaki  Hiroshima University School of Dentistry, Professor, 歯学部, 教授 (80034239)
KATOH Yoshiroh  The Nippon Dental University, School of Dentistry at Niigata, Professor, 新潟歯学部, 教授 (20060452)
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥10,700,000 (Direct Cost: ¥10,700,000)
Fiscal Year 1999: ¥5,400,000 (Direct Cost: ¥5,400,000)
Fiscal Year 1998: ¥5,300,000 (Direct Cost: ¥5,300,000)
KeywordsClinical Evaluation / Long-term Restoration / Posterior Resin Composite / Clinical Criteria / Marginal Adaptation / Marginal Fracture / Adhesion / Abrasion Abrasion / 摩耗 / 臼歯用コンポジットレジン修復
Research Abstract

In this project we overlooked all the literatures recent ten years that reported about clinical performances of dental restorations and we accomplished the following clinical researches. Tagami and Inai reported that main reasons of 1051 direct composite restorations were 46.5% for original caries and 34.0% for secondary caries. Iwaku and Fukushima reported that 116 self-cured direct composite restorations filled in occlusal areas showed 71% functional survival rate after ten years and also the average relative wear at margins were under 100μm. Those results indicated that direct composite restoration even in posterior occlusal area was clinically acceptable for ten years. Shintani reported from his 13-year clinical observation of direct composite restorations that-marginal integrity, sulface wear, discloration and staining did not remarkably change at each period of time, 4, 7 and 10 years. However after 13 years those obviously changed and secondary caries also increased slightly. Ku … More bo reported that 75 cases out of 310 direct composite restorations were replaced. The average period until replacement was 6.2 years, however there was significant difference between 7.4 years for class III and 4.5 years for class V. Fukushima and Kubo commented that three main reasons of replacement were pulp irritation, fracture and failure. Kubo also reported that there was no significant difference of clinical performance between two bonding systems, Clearfil LinerBond II and Single Bond when used in 66 direct composite cases of wedge shaped defect. Kohno and Takamizu suggested with their 7-year clinical data of direct composite that restorations placed with self-etching bonding system could survive at least for 7 years. Kato and Shinkai recommended from their 5-year investigation of posterior composites that marginal bevel should be placed only in small area on the edge of occlusal groove and occlusal transparent matrix should be used. Inoue and Kitano emphasized the importance of field control and high quality of restoring technique to accomplish better long-term clinical results for direct composites. Komatsu focused on the gap width of restorations to make decision of replacement. He suggested that the gap width over 50 μm could be perceptive with dental explorer and evaluations under high magnification was mandatory. Kubo reported that 21 out of 100 cast restorations were replaced and the average functional period of time was 6.3 years. Takeshige evaluated the margines of ceramic inlays for 8 years with SEM. He suggested that the most important factor for the retention of brittle ceramic inlay was the minimization of small flaw and micro crack in the process of fabrication. Less

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (20 results)

All Other

All Publications (20 results)

  • [Publications] 加藤喜郎: "臼歯修復用コンポジットレジン修復歯の経時的変化に関する基礎的および臨床的研究-第5報 窩縁形態と填塞法が修復歯の臨床経過に及ぼす影響について(5ヶ年の観察成績)"日本歯科保存学雑誌. 43. 109-120 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 新海航一: "臼歯用コンポジットレジンの長期予後成績に及ぼす諸因子の影響に関する臨床的検討"日本歯科保存学雑誌. 43. 121-133 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 仲又俊夫: "化学重合型臼歯用コンポジットレンジの長期臨床経過について"歯科審美. 10. 207-210 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 福島正義: "臼歯部コンポジットレジン修復物の長期臨床評価と歯冠修復のポイント"接着歯学. 17. 258-263 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 北野忠則: "臼歯用可視光線重合型コンポジットレジンLite-fil Pの長期臨床経過観察"日本歯科保存学雑誌. 43. 564-571 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 秋本尚武: "セルフエッイチングプライマーシステムの臨床成績 -7年経過例について-"日本歯科保存学雑誌. 43. 1268-1277 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Hayashi M.: "Effects of Cavity Form Setting Expansion of Refractory Dies on Adaptability of Class II (Mo and MOD) Fired Ceramic Inlays"Oper.Dent.. 25. 473-481 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Hayashi M.: "Eight-year clinical evaluation of fired ceramic inlay"Oper.Dent.. 25. 549-554 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 今野ゆき子: "修復物辺縁gapの触診による検査と拡大観察"日本歯科保存学雑誌. 42. 384-394 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Katoh Y., Shinkai K., Takahasi I. and Kataoka M.: "Studies on Posterior Composite Resin - Part 5 On the Clinical Performance Related to Cavity Designs and Filling Techniques (Five-year Observation) -"Jpn. J. Conserv. Dent. 43(1). 109-120 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Shinkai K. and Katoh Y.: "Factors Affecting Long-term Clinical Performance of Posterior Resin Composites"Jpn. J. Conserv. Dent. 43(1). 121-133 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Nakamata T., Fukushima M., Okamoto A., Kuratate A., Kuratate T., E. V. Cruz. and Iwaku M.: "Long-term Clinical Performance of Chemically-cured Posterior Compos Resin"J. Esthetic. Dent. 10. 207-210 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Fukushima M.: "Long-term Clinical Results of Oosterior Composite Restorations and Their Clinical Considerations"Adhesive. Dent. 17(3). 258-263 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Kitano T., Shimizu T., Ueda S., Narikawa K., Hosino S. and Inoue M.: "15-year Longitudinal Clinical Evaluation of Visible-light Cured Posterior Composite Resin Lite-fil P"Jpn. J Conserv. Dent. 43(2). 564-571 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Akimoto N., Takamizu and Kohno A.: "Clinical Evaluation of a Self-etching Primer System -Seven-year Results-"Jpn. J. Conserv. Dent. 43(6). 1268-1277 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Hayashi M., Miura M., Nishijima N. and Ebisu S.: "Effects of Cavity Form and Setting Expansion of Refractory Dies on Adaptability of Class II (MO and MOD) Fired Ceramic Inlays"Operative Dent. 25. 549-554 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Hayashi M., Tsuchitani Y., Kawamura Y., Miura M., Takeshige F. and Ebisu S.: "Eight-Year Clinical Evaluation of Fired Ceramic Inlays"Operative Dent. 25. 473-481 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Konno Y., Komatsu H. and Kobayashi Y.: "Probing and Microscopic Examination for Detection of Gaps at Cavo-surfase Margins of Restorations"Jpn. J. Conserv. Dent. 42(2). 384-394 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 加藤喜郎 新海航一 高橋 泉 片岡昌士: "臼歯修復用コンポジットレジン修復歯の経時的変化に関する基礎的および臨床的研究 ー第5報 窩縁形態と填塞法が修復歯の臨床経過に及ぼす影響について(5ヵ年の観察成績)ー"日本歯科保存学雑誌. 第43巻1号. 109-120 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 新海航一 加藤喜郎: "臼歯用コンポジットレジンの長期予後成績に及ぼす諸因子の影響に関する臨床的検討"日本歯科保存学雑誌. 第43巻1号. 121-133 (2000)

    • Related Report
      1999 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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