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Studies on evaluation of temporary denture soft liners

Research Project

Project/Area Number 02670867
Research Category

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

Allocation TypeSingle-year Grants
Research Field 補綴理工系歯学
Research InstitutionHIROSHIMA UNIVERSITY

Principal Investigator

SHIGETO Naofumi  Hiroshima Univ., Sch. of Dent., Associate professor, 歯学部, 助教授 (10136111)

Co-Investigator(Kenkyū-buntansha) MURATA Hiroshi  Hiroshima Univ., Sch., of Dent., Instructor, 歯学部, 助手 (40229993)
SADAMORI Shinsuke  Hiroshima Univ., Dental Hospital Lecturer, 歯学部附属病院, 講師 (40187167)
HAMADA Taizo  Hiroshima Univ., Sch., of Dent., Professor, 歯学部, 教授 (50034244)
徳山 宏司  広島大学, 歯学部, 助手 (50188744)
玉本 光弘  広島大学, 歯学部・附属病院, 講師 (00136110)
Project Period (FY) 1990 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1992: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1991: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1990: ¥1,300,000 (Direct Cost: ¥1,300,000)
KeywordsDenture liner / Tissue conditioning / Dynamic impression / Temporary lining / Viscoelasticity / Dimensional change / Tissue conditioner / 動的印象材 / 負担圧 / 暫問軟質義歯裏装材 / ティシュコンディショナ- / 義歯症例 / 粘膜調整 / 軟質義歯裏装材 / 無歯顎 / 義歯 / 健康調査票
Research Abstract

The viscoelastic properties of tissue conditioners are very important since they characterize the ability of the material to recondition abused tissue underlyning ill-fitting denture and to make dynamic functional impression and temporary lining.
In tissue conditioning, it is necessary for tissue conditioners to flow for an extended period under the continuous weak pressure of the mucosa, such as functional pressure during recovery from deformation of the mucosa beneath the denture. Therefore, the polymer in powder should have less molecular weight of about 1X10^5 and the liquid should contain less EtOH of about 10%.
On the other hand, it is necessary for the materials in dynamic functional impression to make shape of functionally loaded denture bearing mucosa with high flow in first time and after that to have rigidity for making models with less flow. So the polymer should have medium molecular weight of about 2X10^5 and the liquid should contain more than 10% EtOH to make the progressive change of flow with time.
In temporary lining, it is necessary for them to have less flow maintaining occlusal height immediately after insertion and to be sufficiently elastic and rigid against the pressure by mastication. Thus, the polymer should have high molecular weight of about more than 3X10^5 and the liquid should contain less than 10% EtOH.
In addition, it is necessary for dynamic impression to distribute masticatory pressure uniformly on the mucosa after lining and have correct dimension in view point of making model. Therefore, the plasticizer of the liquid should have high viscosity and high molecular weight to contain less EtOH using the same condition of the polymer.

Report

(4 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • 1990 Annual Research Report
  • Research Products

    (30 results)

All Other

All Publications (30 results)

  • [Publications] H.MURATA: "Viscoelastic properties of tissue conditioners -stress relaxation test using Maxwell model analogy-" Journal of Oral Rehabilitation. 17. 365-375 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 村田 比呂司: "Tissue conditionerの臨床応用" 補綴臨床. 23. 558-561 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 重頭 直文: "無歯顎患者の健康状態と補綴の予後" 老年歯科医学雑誌. 5. 23-29 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 村田 比呂司: "義歯裏装の基礎と臨床" 歯界展望(臨時増刊). 79. 1266 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.MURAKAMI: "Shrinkage of tissue conditioners with time -effect of the particle size in powder and the EtOH content in liguid" Journal of Oral Rehabilitation. 19. 513-520 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 重頭 直文: "高齢者の義歯裏装-義歯裏装材の効果的使用について-" 老年歯科医学雑誌. 7. (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.MURATA: "Initial flow of tissue conditioners -influence of composition and structure-" Journal of Oral Rehabilitation. 20. (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.MURATA: "Viscoelastic properties of tissue conditioners -influence of ethyl alcohol content and type of Plasticizer-" Journal of Oral Rehabilitation.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 浜田 泰三: "義歯の裏装" 日本医療文化センター, 207 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.Murata: "Viscoelastic properties of tissue conditioners-stress relaxation test using Maxwell model analogy-" Journal of Oral Rehabilitation. 17. 365-375 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.Murata: "Clinical use of Tissue conditioner" Practice in Prosthodontics. 23. 558-561 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] N.Shigeto: "Systemic health condition and prognosis after prosthetic treatment in edentulous patients" Japanese Journal of Gerodontology. 5. 23-29 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] N.Murata: "Basic and Clinical research of denture lining" Dental Outlook. 79. 1266 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.Murakami: "Shrinkage of tissue conditioners with time-effect of the particle size in powder and the EtOH content in liquid" Journal of Oral Rehabilitation. 19. 513-520 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] N.Shigeto: "Relining of dentures for elderly patients-effective use of denture liners-" Japanese Journal of Gerodontology. 7. (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.Murata: "Initial flow of tissue conditioners-influence of composition and structure-" Journal of Oral Rehabilitation. 20. (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.murata: "Viscoelastic properties of tissue conditioners-influence of ethyl alcohol content and type of plasticizer-" Journal of Oral Rehabilitation.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] T.Hamada: "Relining of dentures" Japan Medical Culture Center. 207 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 村田 比呂司: "義歯裏装の基礎と臨床" 歯界展望(臨時増刊). 79. 1266 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] S.Murakami: "Shrinkage of tissue conditioners with time -effect of the particle size in powder and the EtOH content in liquid-." Journal of Oral Rehabilitation. 19. 513-520 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 重頭 直文: "高齢者の義歯裏装-義歯裏装材の効果的使用について-" 老年歯科医学雑誌. 7. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Murata: "Initial flow of tissue conditioners -influence of composition and structure-." Journal of Oral Rehabilitation. 20. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Murata: "Viscoelastic properties of tissue couditioners -influence of ethyl alcohol content and type of plasticizer-" Journal of Oral Rehabilitation.

    • Related Report
      1992 Annual Research Report
  • [Publications] 重頭 直文: "無歯顎割者の健康状態と補綴の予後" 老年歯科医学雑誌. 5. 23-29 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Murakami: "Shrinkage of Tissue Conditioners with Time" Journal of Oral Rehabilitaion.

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Murata: "Intial Flow of Tissue Conditioners ーinfluence of composition and structureー" Journal of Oral Rehabilitation.

    • Related Report
      1991 Annual Research Report
  • [Publications] 浜田 泰三: "義歯の裏装" 日本医療文化センタ-, 207 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 村田 比呂司: "Tissue conditionerの臨床応用" 補綴臨床. 23. 558-561 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Murata: "Viscoelastic properties of tissue conditionersーstress relaxation test using Maxwell model analogy" J.Oral Rehabilitation. 17. 365-375 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 重頭 直文: "無歯顎患者の康康状態と補綴の予後" 老年歯科医学. 5. (1991)

    • Related Report
      1990 Annual Research Report

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

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