Effect of the Adhesive Layer Thickness on the Fracture Toughness of Dental Adhesive Resins.

DOI NDLデジタルコレクション Web Site PubMed 被引用文献1件 参考文献11件
  • AI Hongjun
    School of Stomatology, China Medical University
  • NAGAI Masahiro
    Department of Biomechanical Engineering, Division of Biosystems, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University.

この論文をさがす

抄録

We investigated how the thickness of an adhesive layer between two Co-Cr alloy plates affected the mode I fracture toughness of dental adhesive resin by varying the type of resin using a double cantilever beam (DCB) test. Two typical adhesive resins (PV and SB) were used. The adhesive layers of the DCB test specimens were 20, 100 and 200μm thick. The fracture modes of PV differed with the thickness of the adhesive layer, such as interface fracture at 20μm thickness, and similar cohesive fracture at 100 and 200μm thickness. In the case of SB, crackpropagating areas were observed as cohesive fractures in all test specimens with different adhesive layer thickness, and the surfaces of these areas became remarkably rougher as the thickness of the adhesive layer increased. The fracture toughness of PV was not affected by the difference in thickness between the 100 and 200μm adhesive layers, but there was a notable decrease in fracture toughness when the adhesive layer decreased to a thickness of 20μm. That of SB showed a tendency to increase as the adhesive layer became thicker.

収録刊行物

被引用文献 (1)*注記

もっと見る

参考文献 (11)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ