Effect of smear layer treatment on dentin bond of self-adhesive cements

• KAMBARA Keisuke

  Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University

• NAKAJIMA Masatoshi

  Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University

• HOSAKA Keiichi

  Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University

• TAKAHASHI Masahiro

  Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University

• THANATVARAKORN Ornnicha

  Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University Global Center of Excellence Program; International Research Center for Molecular Science in Tooth and Bone Diseases at Tokyo Medical and Dental University

• ICHINOSE Shizuko

  Instrumental Analysis Research Center, Tokyo Medical and Dental University

• M. FOXTON Richard

  Department of Conservative Dentistry, King's College London Dental Institute at Guy's, King's and St Thomas' Hospitals, King's College London

• TAGAMI Junji

  Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University Global Center of Excellence Program; International Research Center for Molecular Science in Tooth and Bone Diseases at Tokyo Medical and Dental University

Abstract

The purpose of this study was to compare the dentin bond strength of three self-adhesive cements with smear layer pretreatments using a calcium-chelating agent (EDTA) and deproteinizing solution (NaOCl) and to evaluate their interfacial characteristics. Smear layer-covered dentin surfaces were pretreated with EDTA for 60 s, NaOCl for 5 and 15 s, or none. Three self-adhesive cements; Clearfil SA luting (Kuraray Medical), Rely X Unicem clicker (3M ESPE) and Breeze (Pentron) were applied to the dentin surfaces. After 24-h water storage, shear bond strengths to dentin were determined. In addition, nanoleakage evaluation at the interface was performed using FE-SEM and EDS. EDTA-pretreatment significantly improved the bond strength of BR (p<0.05) and NaOCl-pretreatment for 15 s significantly improved the bond strength of RX (p<0.05). On the other hand, for SA, both pretreatments significantly decreased bond strength to dentin (p<0.05). Nanoleakage formation was observed in various amounts at the cement-dentin interfaces.

Journal

• Dental Materials Journal

  Dental Materials Journal 31 (6), 980-987, 2012

  The Japanese Society for Dental Materials and Devices

Keywords

• Self-adhesive cement
• Dentin
• Smear layer
• Bond strength
• Nanoleakage

Details

• CRID: 1390001204716565376
• NII Article ID: 10031126078
• NII Book ID: AA10443149
• DOI: 10.4012/dmj.2012-031
• COI: 1:STN:280:DC%2BC3s7oslajtQ%3D%3D
• ISSN: 18811361
• ISSN: 02874547
• PubMed: 23207204
• Web Site: https://www.jstage.jst.go.jp/article/dmj/31/6/31_2012-031/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2014042731
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • PubMed
  • CiNii Articles
• Abstract License Flag: Disallowed