IADR Abstract Archives
Bond Compatibility of OptiBond eXTRa Universal with Various Cements
Objectives: To evaluate the bond compatibility of a new universal adhesive system OptiBond eXTRa Universal (Kerr) and its predecessor OptiBond XTR with several leading resin cements {NX3 (Kerr), RelyX Ultimate (3M ESPE), Calibra Ceram (Dentsply Sirona), Variolink Esthetic DC (Vivadent), and Panavia V5 (Kuraray)} by measuring the shear bond strength (SBS) of each adhesive/cement combination to dentin.
Methods: Dentin substrates were polished with 600 grit SiC paper prior to bonding. Each adhesive was applied per its instructions for use. After light curing, a bonding jig (Ultradent) with a cylindrical mold (D=2.38mm) was securely placed on adhesive-covered substrate. The cement was condensed into the mold, and self-cured for one hour at 37°C (~90% humidity). The bonded specimens (n=6) were then stored in deionized water at 37°C for 24 hours before being subjected to shear force on an Instron mechanical tester following ISO29022:2013. Statistical analysis was performed using One-way ANOVA and Tukey’s method for pair-wise comparison to determine significant differences among groups (p<0.05).
Results: The results are summarized in the table below. Both OptiBond eXTRa Universal and OptiBond XTR yielded excellent and statistically non-different (p>0.05) SBS when paired with any of the cements tested in this study, suggesting excellent bond compatibility for both adhesive systems.
Conclusions: Both OptiBond eXTRa Universal and OptiBond XTR are compatible with all the tested cements. Both adhesive systems produced excellent indirect SBS to dentin when paired with any of the tested cements.
Methods: Dentin substrates were polished with 600 grit SiC paper prior to bonding. Each adhesive was applied per its instructions for use. After light curing, a bonding jig (Ultradent) with a cylindrical mold (D=2.38mm) was securely placed on adhesive-covered substrate. The cement was condensed into the mold, and self-cured for one hour at 37°C (~90% humidity). The bonded specimens (n=6) were then stored in deionized water at 37°C for 24 hours before being subjected to shear force on an Instron mechanical tester following ISO29022:2013. Statistical analysis was performed using One-way ANOVA and Tukey’s method for pair-wise comparison to determine significant differences among groups (p<0.05).
Results: The results are summarized in the table below. Both OptiBond eXTRa Universal and OptiBond XTR yielded excellent and statistically non-different (p>0.05) SBS when paired with any of the cements tested in this study, suggesting excellent bond compatibility for both adhesive systems.
Conclusions: Both OptiBond eXTRa Universal and OptiBond XTR are compatible with all the tested cements. Both adhesive systems produced excellent indirect SBS to dentin when paired with any of the tested cements.