Influence of different curing modes on the bonding effectiveness of self-adhesive resin luting cements in combination with universal adhesives

Ryota Aoki, Toshiki Takamizawa, Kana Hayashi, Yuiko Arai, Ryo Ishii, Mone Shoji, Atsushi Kamimoto, Masashi Miyazaki

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Objectives: This study aimed to investigate the immediate dentin bond performance and bond durability of self-adhesive resin luting cements (RLCs) in combination with universal adhesives in different curing modes. Methods: Two self-adhesive RLCs were used with universal adhesives as primers. They were also used alone as self-adhesive RLCs. Two multiple-step RLC systems were used as comparison materials. To measure the shear bond strength (SBS) in different curing modes, 12 specimens were prepared for each group. Stainless-steel rods were bonded to bovine dentin, and the bonded specimens were assigned to the baseline group (stored for 24 h) and artificially aged group (thermal cycling [TC], 10,000 cycles). After each storage period, the SBS of the bonded specimens was measured. The Knoop hardness number (KHN) of the cured RLCs was measured with or without primer application in different curing modes at 24 h and after 10,000 TC. The representative RLC/dentin interfaces were observed using scanning electron microscopy (SEM). Results: Dentin SBS was significantly influenced by the RLC system but not by the curing mode. Self-adhesive RLCs alone showed significantly lower SBS values than self-adhesive RLCs with primer regardless of the curing mode or storage period. The storage period, curing mode, and RLC system significantly influenced the KHN. Significance: The use of universal adhesives as a primer may help enhance the immediate dentin bond performance and bond durability of self-adhesive RLCs.

Original languageEnglish
Pages (from-to)379-385
Number of pages7
JournalDental Materials
Volume40
Issue number2
DOIs
Publication statusPublished - Feb 2024

Keywords

  • Bond durability
  • Self-adhesive resin luting cement
  • Touch-cure
  • Universal adhesive

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