期刊
EUROPEAN JOURNAL OF ORAL SCIENCES
卷 124, 期 2, 页码 210-218出版社
WILEY
DOI: 10.1111/eos.12253
关键词
dentin bond durability; pre-etching time; self-etch adhesive; shear bond strength; shear fatigue strength
资金
- Japan Society for the Promotion of Science [26462896, 25462967]
- Sato Fund
- Dental Research Centre of the Nihon University School of Dentistry, Japan
- Grants-in-Aid for Scientific Research [26462896, 25462967] Funding Source: KAKEN
The purpose of this study was to use shear bond strength (SBS) and shear fatigue strength (SFS) testing to determine the influence on dentin bonding of phosphoric acid pre-etching times before the application of self-etch adhesives. Two single-step self-etch universal adhesives [Prime & Bond Elect (EL) and Scotchbond Universal (SU)], a conventional single-step self-etch adhesive [G-aenial Bond (GB)], and a two-step self-etch adhesive [OptiBond XTR (OX)] were used. The SBS and SFS values were obtained with phosphoric acid pre-etching times of 3, 10, or 15 s before application of the adhesives, and for a control without pre-etching. For groups with 3 s of pre-etching, SU and EL showed higher SBS values than control groups. No significant difference was observed for GB among the 3 s, 10 s, and control groups, but the 15 s pre-etching group showed significantly lower SBS and SFS values than the control group. No significant difference was found for OX among the pre-etching groups. Reducing phosphoric acid pre-etching time can minimize the adverse effect on dentin bonding durability for the conventional self-etch adhesives. Furthermore, a short phosphoric acid pre-etching time enhances the dentin bonding performance of universal adhesives.
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