Effects of resin hydrophilicity on dentin bond strength

Yoshihiro Nishitani, M. Yoshiyama, A. M. Donnelly, K. A. Agee, J. Sword, F. R. Tay, D. H. Pashley

Research output: Contribution to journalArticle

99 Citations (Scopus)

Abstract

The purpose of this study was to determine if hydrophobic resins can be coaxed into dentin wet with ethanol instead of water. The test hypothesis was that dentin wet with ethanol would produce higher bond strengths for hydrophobic resins than would dentin wet with water. This study examined the microtensile bond strength of 5 experimental adhesives (50 wt% ethanol/50% comonomers) of various degrees of hydrophilicity to acid-etched dentin that was left moist with water, moist with ethanol, or air-dried. Following composite buildups, hourglass-shaped slabs were prepared from the bonded teeth for microtensile testing. For all 3 types of dentin surfaces, higher bond strengths were achieved with increased resin hydrophilicity. The lowest bond strengths were obtained on dried dentin, while the highest bond strengths were achieved when dentin was bonded moist with ethanol. Wet-bonding with ethanol achieved higher bond strengths with hydrophobic resins than were possible with water-saturated matrices.

Original languageEnglish
Pages (from-to)1016-1021
Number of pages6
JournalJournal of dental research
Volume85
Issue number11
DOIs
Publication statusPublished - Nov 2006

Keywords

  • Dentin bonding
  • Ethanol
  • Hydrophilic resins
  • Wet-bonding

ASJC Scopus subject areas

  • Dentistry(all)

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  • Cite this

    Nishitani, Y., Yoshiyama, M., Donnelly, A. M., Agee, K. A., Sword, J., Tay, F. R., & Pashley, D. H. (2006). Effects of resin hydrophilicity on dentin bond strength. Journal of dental research, 85(11), 1016-1021. https://doi.org/10.1177/154405910608501108