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Study on Cavity Cleansing Agents Applied to the Dentin Wall in Composite Restoration

Research Project

Project/Area Number 02670858
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Conservative dentistry
Research InstitutionThe Nippon Dental University

Principal Investigator

SHINKAI Kohichi  The Nippon Dental University, School of Dentistry at Niigata/Associate Professor, 新潟歯学部, 助教授 (90147843)

Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1991: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1990: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsDentin Permeability / Smear Layer / Shear Bond Strength / Dentin Cleansing Agent / Composite Restoration / Dentin Adhesive / コンポジットレジン修復窩洞 / 象牙質面処理剤 / smear layer / dentinal plug
Research Abstract

(1) The relationship between morphologic changes on dentin surface and dentin permeability after conditioning
The filtration of isotonic saline was measured and found to be very slight even when smear layers were used to cover the dentin surface. The filtration rates and area rates of open tubules were measured after conditioning using six kinds of dentin cleansing agents (summary in Table 1). KE and SB significantly increased the filtration rate and the area rate of open tubules more than the other ones (t-test, P<0.01). There was a significant relationship between the filtration rate and the area rate of open tubules using linear regression analysis (r=0.9214, P<0.01).
(2) The relationship between shear bond strength to dentin and dentin permeability after conditioning
The shear bond strength of PHOTO BOND^<TM> and PHOTO CLEARFUL BRIGHT^<TM> to dentin after each conditioning are shown in Table 2. The shear bond strength of the dentin surfaces conditioned with KE measured significantly higher than the others except 15ED (t-test, P<0.01). There was no significant relationship between the shear bond strength and the filtration rate using linear regression analysis (r=0.2036, P<0.05).

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (4 results)

All Other

All Publications (4 results)

  • [Publications] 新海 航一: "コンポジットレジン修復窩洞の象牙質面処理剤に関する研究(第1報)処理後の象牙質透過性と形態変化について" 日本歯科保存学雑誌. 34. 13 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 新海 航一: "コンポジットレジン修復窩洞の象牙質面処理剤に関する研究(第1報)処理後の象牙質透過性と形態変化について" 日本歯科保存学雑誌. 35. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Shinkai, K. & Katoh, Y.: "Study on Cavity Cleansing Agents Applied to the Dentin Wall in Composite Restoration Part 1. The Relationship between Morphologic Changes on Dentin Surface and Dentin Permeability after Conditioning" Jan. J. Conserv. Dent.34-Autumn Issue. 10 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Shinkai, K. & Katoh, Y.: "Study on Cavity Cleansing Agents Applied to the Dentin Wall in Composite Restoration Part 1. The Relationship between Morphologic Changes on Dentin Surface and Dentin Permeability after Conditioning" Jan. J. Conserv. Dent.35-3. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary

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Published: 1990-04-01   Modified: 2016-04-21  

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