Shear bond strength of luting agents to fixed prosthodontic restorative core materials.

摘要: Background:  Bonding properties of luting cements are important for retention restorative core materials. The aim this study was to compare the bonding performance a resin-modified glass ionomer cement and self-adhesive resin various fixed prosthodontic materials. Methods:  Cylindrical specimens with thickness 2 mm diameter 5 mm were fabricated from Au-Pd-Ag, Co-Cr, Ni-Cr-Mo, Ni-Cr-Fe alloys, titanium, zirconia Empress II (n = 20). Each group divided into two subgroups be luted different agents. Composite blocks cemented onto RelyXUnicem FujiCem. A shear bond strength machine 50 kg load cell 0.50 mm/min crosshead speed used. Kruskal Wallis test, Dunn’s Multiple Range test Mann-Whitney-U used statistical analysis. results evaluated in confidence interval p < 0.05. Results:  highest obtained between Ni-Cr-Fe-RelyXUnicem (8.22 ± 2.15 MPa) lowest II-FujiCem (1.48 ± 0.9 MPa). In FujiCem groups, Co-Cr showed significantly higher than Au-Pd-Ag II. RelyX Unicem II. Conclusions:  types agents materials may have significant influence on strength.