Diffusion-induced water movement within resin-dentin bonds during bonding

Masanori Hashimoto, Franklin Chi Meng Tay, Hidehiko Sano, Masayuki Kaga, David H. Pashley

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

It is thought that water-filled channels and nanovoids in resin-dentin bonds represent potential sites for degradation of bonds or hydrolysis of collagen or both. How water gains access to bonded interfaces is not clear. This study evaluated the diffusion-induced water uptake through resin-dentin interfaces during bonding. Two light-cured total-etch adhesive systems (Excite and One-Step Plus) and a chemical-cured adhesive (Amalgambond Plus) were used in this study. Dentin disks were placed in a split-chamber device, and the fluid movement across dentin was measured, with and without a physiological pressure, during bonding procedures and 24 h after bonding. For light-cured adhesives in the experimental groups, a 6 min interval of dark storage was conducted prior to light-curing, to evaluate the diffusion of water through the uncured resin monomers, and to test the effect of prolonged infiltration time of adhesives on water permeability of bonds. Prolonged adhesive infiltration reduced the water permeability of resin-dentin bonds for light-cured adhesives. Water gradients produced by bonding systems contribute to water movement across the dentin-adhesive interfaces during bonding procedures. Differences in chemical formulations for adhesive systems may lead to differences in the extent of diffusion-induced water movement and the amount of water within the resin-dentin bonds.

Original languageEnglish (US)
Pages (from-to)453-458
Number of pages6
JournalJournal of Biomedical Materials Research - Part B Applied Biomaterials
Volume79
Issue number2
DOIs
StatePublished - Nov 1 2006

Fingerprint

Water Movements
Dentin
Adhesives
Resins
Water
Light
Dentin Permeability
Infiltration
Aquaporins
Permeability
Hydrolysis
Collagen
Curing
Pressure
Equipment and Supplies
Monomers

Keywords

  • Adhesion
  • Hydrophilic
  • Hydrophobic
  • Permeability
  • Polymerization

ASJC Scopus subject areas

  • Biomedical Engineering
  • Biomaterials

Cite this

Diffusion-induced water movement within resin-dentin bonds during bonding. / Hashimoto, Masanori; Tay, Franklin Chi Meng; Sano, Hidehiko; Kaga, Masayuki; Pashley, David H.

In: Journal of Biomedical Materials Research - Part B Applied Biomaterials, Vol. 79, No. 2, 01.11.2006, p. 453-458.

Research output: Contribution to journalArticle

Hashimoto, Masanori ; Tay, Franklin Chi Meng ; Sano, Hidehiko ; Kaga, Masayuki ; Pashley, David H. / Diffusion-induced water movement within resin-dentin bonds during bonding. In: Journal of Biomedical Materials Research - Part B Applied Biomaterials. 2006 ; Vol. 79, No. 2. pp. 453-458.
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