Abstract
To Investigate the Effect of Different Surface Treatments on Push-out Bond Strength of Zirconia Oxide Posts in Root Canals. Sixty Single Rooted Extracted Teeth were Collected and Divided into Two Groups. Custom Milled Zirconium Oxide Posts (Cercon, Degudent, Germany; Cosmopost, Ivoclar, Liechtenstein) were Fabricated. Post Specimens of each Group were Subjected to Different Surface Treatments (n=10): no Treatment (control), Sandblasting then Silane Coating and Silane Application (SB+SC+SI), Sandblasting and Silane Application (SB+SI). all Specimens were Bonded with Relyx Unicem and Horizontally Sectioned into Three Sections and Subjected to a Push-out Test. Data were Analyzed Using Two-way ANOVA. Cercon Recorded Significant Higher Bond Strength than Cosmopost (P＞0.05). Surface Treatments Recorded Higher Values than Control Group, and SB+SC+SI Presented Higher Bond Strength than SB+SI (P＞0.05). there was no Significant Difference among Different Root Regions (P＞0.05). Therefore Cercon May be more Suitable to be Used as Post Materials than Cosmopost. Surface Treatments have Significant Effect on Push-out Bond Strength of Zirconia Oxide Post and SB+SC+SI Group Presents Better Bond Strength than SB+SI Group.
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