Effects of HEMA/solvent combinations on bond strength to dentin

R. M. Carvalho, J. S. Mendonça, S. L. Santiago, R. R. Silveira, F. C.P. Garcia, F. R. Tay, D. H. Pashley

Research output: Contribution to journalArticle

104 Citations (Scopus)

Abstract

Re-expansion of dried demineralized dentin is required to optimize resin adhesion. This study tested the hypothesis that bond strengths to dentin depend upon the ability of experimental HEMA(2-hydroxy-ethyl-methacrylate)/solvent primers to re-expand the matrix. Dentin surfaces were acid-etched with 37% phosphoric acid for 20 sec, air-dried for 30 sec, primed with either 35/65% (v/v) HEMA/water, HEMA/methanol, HEMA/ethanol, or HEMA/propanol for 60 sec, and bonded with 4-META-TBBO(4-methacryloyloxyethyl trimellitate anhydride-tri-n- butyl borane) adhesive. After storage in water for 1 day at 37°C, the samples were prepared for microtensile bond strength testing. We used transmission electron microscopy to measure the width of interfibrillar spaces in the hybrid layers. The HEMA/ethanol primer and the HEMA/propanol primer produced the highest and the lowest bond strengths, respectively (p < 0.05). Bond strengths were directly correlated with the width of the interfibrillar spaces (p < 0.05). Bond strengths are related to the ability of the primer to maintain the re-expansion of collapsed demineralized dentin matrix.

Original languageEnglish (US)
Pages (from-to)597-601
Number of pages5
JournalJournal of Dental Research
Volume82
Issue number8
DOIs
StatePublished - Aug 2003

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Methacrylates
Dentin
1-Propanol
Ethanol
Boranes
Water
Anhydrides
Transmission Electron Microscopy
Adhesives
Methanol
Air
Acids

Keywords

  • Dentin
  • Microtensile bond strength
  • Solvents

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Carvalho, R. M., Mendonça, J. S., Santiago, S. L., Silveira, R. R., Garcia, F. C. P., Tay, F. R., & Pashley, D. H. (2003). Effects of HEMA/solvent combinations on bond strength to dentin. Journal of Dental Research, 82(8), 597-601. https://doi.org/10.1177/154405910308200805

Effects of HEMA/solvent combinations on bond strength to dentin. / Carvalho, R. M.; Mendonça, J. S.; Santiago, S. L.; Silveira, R. R.; Garcia, F. C.P.; Tay, F. R.; Pashley, D. H.

In: Journal of Dental Research, Vol. 82, No. 8, 08.2003, p. 597-601.

Research output: Contribution to journalArticle

Carvalho, RM, Mendonça, JS, Santiago, SL, Silveira, RR, Garcia, FCP, Tay, FR & Pashley, DH 2003, 'Effects of HEMA/solvent combinations on bond strength to dentin', Journal of Dental Research, vol. 82, no. 8, pp. 597-601. https://doi.org/10.1177/154405910308200805
Carvalho RM, Mendonça JS, Santiago SL, Silveira RR, Garcia FCP, Tay FR et al. Effects of HEMA/solvent combinations on bond strength to dentin. Journal of Dental Research. 2003 Aug;82(8):597-601. https://doi.org/10.1177/154405910308200805
Carvalho, R. M. ; Mendonça, J. S. ; Santiago, S. L. ; Silveira, R. R. ; Garcia, F. C.P. ; Tay, F. R. ; Pashley, D. H. / Effects of HEMA/solvent combinations on bond strength to dentin. In: Journal of Dental Research. 2003 ; Vol. 82, No. 8. pp. 597-601.
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