IADR 95th

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-23-G-CEM CERASMART , G-CEM ONE, Aadva Zirconia, UniFil Core EM/Gradia Core0759 Bonding of Self-adhesive Resin Cements to Alumina-blasting ZirconiaPoster Presentation11:00 AM–12:15 PM Mar 23, 2017CC, First Floor Authors:Keiichi Yoshida (Presenter)Nagasaki University HospitalKeiichi Yoshida (Presenter)Nagasaki University HospitalTakashi Sawase, Nagasaki University, Graduate School of Biomedical SciencesAbstract: Objectives: This study evaluated the shear bond strengths of four hand-mixing self-adhesive resin cements {RelyXUnicem2 Clicker (3M ESPE), SA LutingPlus (Kuraray Noritake Dental), G-CEM Cerasmart(GC), and CSRZAF12 (GC)} between alumina-blasting zirconia(AadvaEI, GC) and dual-polymerizing foundation composite resin (UniFilCore EM, GC).and dual-polymerizing foundation composite resin (UniFilCore EM, GC).Methods: Zirconiadisk specimens were sanded with grit #1000 silicon-carbide paper (SiC), and then air-abraded with 50µm alumina particles at 0.3MPa for 15s. Composite disk specimens were sanded with #1000 SiCand treated with phosphoric acid gel (K-etchant GEL, Kuraray Noritake Dental) for 5s, rinsed, and then air-dried. Zirconiaand composite disks were bonded together with each self-adhesive resin cement, and then photo-polymerized with a visible-light-curing unit for 30s. Specimens were stored in distilled water at 37°C for 24h (TC0) and/or performed thermal cycling of 10000 times (TC10000) before shear bond strength testing. Means±SDsof shear bond strength (MPa) are listed in Table. Data were analyzed by two-way ANOVA and shear bond strength (MPa) are listed in Table. Data were analyzed by two-way ANOVA and identical letters were not significantly different by Bonferroni-Dunn tests (p>0.05, n=8).Results: The bond strengths of three self-adhesive resin cements between alumina-blasting zirconiaand composite resin were significantly higher than that of the other one resin cement at TC0 and TC10000. The bond strengths of four resin cements did not significantly decrease at TC10000 as compared with at TC0.Conclusions: These results suggest that the bond strength is different between brands of self-adhesive resin cements because they contain also different type of adhesive monomer in each resin cement.resin cement.Table(s):Resin CementTC0TC10000RelyX Unicem 2 Clicker19.5±2.1a17.5±2.4aSA Luting Plus26.2±1.4b24.2±2.9bG-CEM Cerasmart26.4±2.6b24.1±3.1bCSRZAF1223.9±2.4b24.8±2.2bDisclosure Statement:The submitter must disclose the names of the organizations with which any author have a relationship, the nature of the relationship, and the clinical or research area involved. The following is submitted: NoneI have read the IADR policy on licensing.Signed by Keiichi YoshidaReprinted with permission from the Journal of Dental Research, J Dent Res 96 (Spec Iss A):-23-abstract number 0759, https://iadr2017.zerista.com/event/member/330797, 2017