Bonding BisGMA to dentin - A proof of concept for hydrophobic dentin bonding

Franklin Chi Meng Tay, David Henry Pashley, R. R. Kapur, M. R.O. Carrilho, Y. B. Hur, L. V. Garrett, K. C.Y. Tay

Research output: Contribution to journalArticle

118 Scopus citations

Abstract

The use of TEGDMA as a diluent comonomer in the formulation of hydrophobic adhesives for ethanol wet-bonding is a concern, due to its leaching potential, higher water sorption, and bio-incompatibility. This study tested the hypothesis that hydrophobic bonding to acid-etched dentin may be accomplished with the use of ethanol-solvated BisGMA only. Phosphoric-acid-etched, oxalate-occluded, deep coronal dentin bonded under 20 cm water pressure with experimental BisGMA adhesives by ethanol wet-bonding exhibited tensile strengths that were not significantly different from that achieved with OptiBond FL bonded according to the manufacturer-recommended protocol, with similar acid-/base-resistant hybrid layers, resin tags, and nanoleakage distribution. Ethanol replacement of water-saturated dentin produced wider interfibrillar spaces, more extensive shrinkage of the collagen fibrils, and narrower hybrid layers. Experimental BisGMA adhesives provide the proof of concept that relatively hydrophobic resins may be coupled to acid-etched dentin by increasing its hydrophobic characteristics via ethanol replacement. They should be further optimized before clinical application.

Original languageEnglish (US)
Pages (from-to)1034-1039
Number of pages6
JournalJournal of Dental Research
Volume86
Issue number11
DOIs
Publication statusPublished - Nov 1 2007

    Fingerprint

Keywords

  • Acid-etched dentin
  • Bis-GMA
  • Dentin bonding
  • Ethanol wet bonding
  • Hydrophobic resin

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Tay, F. C. M., Pashley, D. H., Kapur, R. R., Carrilho, M. R. O., Hur, Y. B., Garrett, L. V., & Tay, K. C. Y. (2007). Bonding BisGMA to dentin - A proof of concept for hydrophobic dentin bonding. Journal of Dental Research, 86(11), 1034-1039. https://doi.org/10.1177/154405910708601103