The strategies used for curing universal adhesives affect the micro-bond strength of resin cement used to lute indirect resin composites to human dentin

Daisuke Araoka, Keiichi Hosaka*, Masatoshi Nakajima, Richard Foxton, Ornnicha Thanatvarakorn, Taweesak Prasansuttiporn, Ayaka Chiba, Kento Sato, Masahiro Takahashi, Masayuki Otsuki, Junji Tagami

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

We evaluated the effect of different curing strategies for universal adhesives on micro-tensile bond strength (μTBS) between resin cement and dentin and/or between resin cement and indirect resin composite. Flat coronal dentin surfaces and composite resin disks were pretreated with silane-containing universal adhesives, with or without light-curing on the dentin-side and/or composite resin disk-side. Resin disks were luted onto the pretreated dentin surfaces with the corresponding dual-cure adhesive resin cements and light-cured, and cut into beams after 24-h water storage. After 0 or 10,000 thermocycles (5ºC/55ºC) in a water bath, the μTBS of the composite resin disk–dentin beam was tested. The μTBS was highest when universal adhesives were applied to both the dentin-and the indirect composite resin disk-side, followed by light-curing. Thermocycling decreased μTBS in all but the Scotchbond Universal-treated group, with light-curing on both sides. The effect of curing strategies is dependent upon the materials.

Original languageEnglish
Pages (from-to)506-514
Number of pages9
JournalDental Materials Journal
Volume37
Issue number3
Early online date8 Jun 2018
DOIs
Publication statusE-pub ahead of print - 8 Jun 2018

Keywords

  • Dual-cure resin cement
  • Indirect restoration
  • Micro-tensile bond strength
  • Thermocycle aging
  • Universal adhesive

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