Push-out bond strengths of different dental cements used to cement glass fiber posts

摘要: Statement of problem Since the introduction glass fiber posts, irreversible vertical root fractures have become a rare occurrence; however, adhesive failure has primary mode. Purpose The purpose this study was to evaluate push-out bond strength posts cemented with different luting agents on 3 segments root. Material and methods Eighty human maxillary canines similar lengths were randomly divided into 8 groups (n=10) according cement assessed (Rely X luting, Luting Lining, Ketac Cem, Rely ARC, Biscem, Duo-link, U100, Variolink II). After standardized post space preparation, dentin pretreated for dual-polymerizing resin cements untreated other cements. mixed paste inserted spaces spiral file applied surface that seated canal. 7 days, teeth sectioned perpendicular their long axis 1-mm-thick sections. test performed at speed 0.5 mm/min until extrusion occurred. results evaluated by 2-way ANOVA all pairwise multiple comparison procedures (Tukey test) (α=.05). Results showed type interaction between location significantly influenced ( P Conclusions Self-adhesive ionomer higher values compared In segments, provided lower strength. Significant differences among found only Duo-link cement.