Analysis of Self-Adhesive Resin Cement Microshear Bond Strength on Leucite-Reinforced Glass-Ceramic with/without Pure Silane Primer or Universal Adhesive Surface Treatment

Yoon Lee, Jae Hoon Kim, Jung Soo Woo, Young Ah Yi, Ji Yun Hwang, Deog Gyu Seo

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Abstract

Objective. To evaluate the microshear bond strength (SBS) of self-adhesive resin (SA) cement on leucite-reinforced glass-ceramic using silane or universal adhesive. Materials and Methods. Ceramic blocks were etched with 9.5% hydrofluoric acid and divided into three groups (n=16): (1) negative control (NC) without treatment; (2) Single Bond Universal (SBU); (3) RelyX Ceramic Primer as positive control (PC). RelyX Unicem resin cement was light-cured, and SBS was evaluated with/without thermocycling. The SBS was analyzed using one-way analysis of variance. The fractured surfaces were examined using stereomicroscopy and scanning electron microscopy (SEM). Results. Without thermocycling, SBS was highest for PC (30.50 MPa ± 3.40), followed by SBU (27.33 MPa ± 2.81) and NC (20.18 MPa ± 2.01) (P<0.05). Thermocycling significantly reduced SBS in SBU (22.49 MPa ± 4.11) (P<0.05), but not in NC (20.68 MPa ± 4.60) and PC (28.77 MPa ± 3.52) (P>0.05). PC and NC predominantly fractured by cohesive failure within the ceramic and mixed failure, respectively. Conclusion. SBU treatment improves SBS between SA cement and glass ceramics, but to a lower value than PC, and the improvement is eradicated by thermocycling. NC exhibited the lowest SBS, which remained unchanged after thermocycling.

Original languageEnglish
Article number361893
JournalBioMed Research International
Volume2015
DOIs
Publication statusPublished - 2015 Jan 1

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All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)

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