Shear bond strength of resin cement on moist dentin and its relation to the flexural strength of resin cement

Masao Irie, Masahiro Okada, Akio Yoshimoto, Yukinori Maruo, Goro Nishigawa, Takuya Matsumoto

Research output: Contribution to journalArticlepeer-review

Abstract

We sought to compare the bond strength of resin cement on moist dentin to that on dry dentin, and determine the relationship between the bond strength and flexural strength of resin cement. The water content of the moist and dry dentins was estimated using infrared spectroscopy. Four adhesive and three self-adhesive resin cements were used. At three times of immediately, after one-day storage, and after 20,000 thermocycles (TC 20k), the shear bond strengths were measured. For all resin cements, both the shear bond strength and the flexural strength were the lowest immediately after setting; however, after one day of water storage or TC 20k, these resin cements had the highest values. Regardless of the condition of the dentin surface upon shear bond strength, the flexural strength of each resin cement was correlated with the shear bond strength of the dentin surface.

Original languageEnglish
Pages (from-to)429-439
Number of pages11
JournalDental materials journal
Volume41
Issue number3
DOIs
Publication statusPublished - 2022

Keywords

  • Durability
  • Flexural strength
  • Moist dentin
  • Resin cement
  • Shear bond strength

ASJC Scopus subject areas

  • Ceramics and Composites
  • Dentistry(all)

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