Mechanical Properties of An Experimental Soft Lining Material Based on Urethane Oligomer

• KANIE Takahito

  Department of Biomaterials Science, Graduate School of Medical and Dental Sciences, Kagoshima University

• KADOKAWA Akihiko

  Department of Fixed Prosthetic Dentistry, Graduate School of Medical and Dental Sciences, Kagoshima University

• ARIKAWA Hiroyuki

  Department of Biomaterials Science, Graduate School of Medical and Dental Sciences, Kagoshima University

• FUJII Koichi

  Department of Biomaterials Science, Graduate School of Medical and Dental Sciences, Kagoshima University

• BAN Seiji

  Department of Biomaterials Science, Graduate School of Medical and Dental Sciences, Kagoshima University

抄録

The purpose of this study was to investigate the apparent viscosities and mechanical properties of two experimental lightcuring soft lining materials (SLM-1 and SLM-2) based on soft-type urethane oligomers, as well as the shear bond strength and dye penetration between the denture base resin and the polymerized SLMs after storage in water. The apparent viscosities of SLM-1 and SLM-2 were 144.0-146.9 and 1.9 Pa·s respectively. After storage in water for two prescribed periods (one day and three months), the mechanical properties of the SLMs on the overall were 10.6-20.6MPa for elastic modulus, 69.3-72.1 for hardness, and 3.8-4.0MPa for adhesive strength. Tensile strength was observed to decrease after three months' storage in water, when compared to that after one-day storage (p<0.01). Water sorption rates also differed significantly (p<0.05)—namely 3.0 and 2.8mg/cm² for SLM-1 after one day and three months respectively, and 2.0 and 2.2mg/cm² for SLM-2. As for dye penetration, no infiltration was observed at the denture base resin-SLM interface after three months' storage. Based on the results of this study, it seemed like the SLMs possess many suitable properties for use with a new technique that we recently developed for preparing denture base resin and soft lining material.

収録刊行物

• Dental Materials Journal

  Dental Materials Journal 24 (3), 433-439, 2005

  一般社団法人　日本歯科理工学会

キーワード

• Soft lining material
• Mechanical property
• Light-curing

詳細情報

• CRID: 1390001204715766144
• NII論文ID: 110002983738
• NII書誌ID: AA10443149
• DOI: 10.4012/dmj.24.433
• COI: 1:CAS:528:DC%2BD2MXht1CrsbvF
• ISSN: 18811361
• ISSN: 02874547
• ISSN: http://id.crossref.org/issn/02874547
• Web Site: https://www.jstage.jst.go.jp/article/dmj1982/24/3/24_3_433/_pdf
• Web Site: http://dl.ndl.go.jp/info:ndljp/pid/10744749
• Web Site: https://search.jamas.or.jp/link/ui/2006294412
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • NDL-Digital
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可