Effect of ultraviolet light irradiation period on bond strengths between fiber-reinforced composite post and core build-up composite resin

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Author(s)

    • ASAKAWA Yuya
    • Advanced Biomaterials, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
    • TAKAHASHI Hidekazu
    • Advanced Biomaterials, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University|Oral Biomaterials Engineering, Department of Oral Materials Sciences and Technology, Course for Oral Health Engineering, School of Oral Health Care Sciences, Faculty of Dentistry, Tokyo Medical and Dental University
    • IWASAKI Naohiko
    • Oral Biomaterials Engineering, Department of Oral Materials Sciences and Technology, Course for Oral Health Engineering, School of Oral Health Care Sciences, Faculty of Dentistry, Tokyo Medical and Dental University
    • KOBAYASHI Masahiro
    • Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology

Abstract

The aim of the present study was to characterize the effects of the ultraviolet light (UV) irradiation period on the bond strength of fiber-reinforced composite (FRC) posts to core build-up resin. Three types of FRC posts were prepared using polymethyl methacrylate, urethane dimethacrylate, and epoxy resin. The surfaces of these posts were treated using UV irradiation at a distance of 15 mm for 0 to 600 s. The pull-out bond strength was measured and analyzed with the Dunnett's comparison test (α=0.05). The bond strengths of the post surfaces without irradiation were 6.9 to 7.4 MPa; those after irradiation were 4.2 to 26.1 MPa. The bond strengths significantly increased after 15 to 120-s irradiation. UV irradiation on the FRC posts improved the bond strengths between the FRC posts and core build-up resin regardless of the type of matrix resin.

Journal

  • Dental Materials Journal

    Dental Materials Journal 33(1), 133-140, 2014

    The Japanese Society for Dental Materials and Devices

Codes

  • NII Article ID (NAID)
    130003394943
  • Text Lang
    ENG
  • ISSN
    0287-4547
  • Data Source
    J-STAGE 
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