Bond durability of a two-step adhesive with a universal-adhesive-derived primer in different etching modes under different degradation conditions

Toshiki Takamizawa, Eizo Hirokane, Keiichi Sai, Ryo Ishii, Ryota Aoki, Wayne W. Barkmeier, Mark A. Latta, Masashi Miyazaki

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

This study investigated the enamel and dentin bond durability of a two-step adhesive system, using a universal adhesive-derived primer (G2-Bond Universal [GU]), and compared it with the two conventional, two-step, self-etch adhesive systems (Clearfil SE Bond 2 [CS] and OptiBond XTR [OX]) under thermal cycling (TC) and long-term water storage (WS). The shear bond strengths to bovine enamel and dentin were determined using the etch-and-rinse and self-etch modes. Twelve specimens per test group were prepared and further divided into the following subgroups: 1) subjected to TC, 2) long-term WS, and 3) WS for 24 h (baseline). The enamel and dentin bond durability of GU was superior to those of CS and OX in different etching modes and under different degradation conditions. The latest two-step adhesive system, which utilizes universal adhesives’ benefits in its primer, might offer durable clinical bonding performances and can be widely used in a clinical setting.

Original languageEnglish
Article numberdmj/2022-130
Pages (from-to)121-132
Number of pages12
JournalDental Materials Journal
Volume42
Issue number1
DOIs
Publication statusPublished - 2023

Keywords

  • Bond durability
  • Enamel and dentin
  • Hydrophobic bonding agent
  • Two-step adhesive system
  • Universal adhesive-derived primer

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