Push-out bond strength of fiber posts luted with unfilled resin cement.
Copyright policy )Push-out bond strength of fiber posts luted with unfilled resin cement.
The study evaluates the behavior of different adhesive systems and resin cements in fiber post placement, with the intent to clarify the possible role of unfilled resin as a luting material for fiber posts.Two luting agents (Dual-Link and Unfilled Resin) for cementing fiber posts into root canals were applied either with All-Bond 2 or One-Step Plus, or without an adhesive system, and challenged with the push-out test. Slices of roots restored with posts were loaded until post segment extrusion in the apical-coronal direction. Failure modes were analyzed under SEM.Push-out strength was significantly influenced by the luting agent (p 0.05). The best results were obtained in combination with Unfilled Resin with One-Step Plus. Dual-Link groups failed mainly cohesively within the cement, while Unfilled Resin demonstrated more adhesive fracture at the post interface.The results of this study support the hypothesis that adhesive unfilled resin application is essential for achieving high bond strength to radicular dentin.
- Alma Mater Studiorum University of Bologna Italy
- Universidade de São Paulo Brazil
- University of Siena Italy
- University of Trieste Italy
- National Research Council Italy
Unfilled resin, Adolescent, Polyurethanes, Retention of fiber post, Polyethylene Glycols, Acid Etching, Dental, Polymethacrylic Acids, Materials Testing, Fiber post, Humans, Bisphenol A-Glycidyl Methacrylate, Resin cement, Cementation, Dental Bonding, Humidity, Etch-and-rinse technique, Push-out test, DENTIN BONDING SYSTEMS, Etch-and-rinse technique; Fiber post; Push-out test; Resin cement; Retention of fiber posts; Unfilled resin, Resin Cements, Dentin-Bonding Agents, Dentin, Microscopy, Electron, Scanning, Methacrylates, Stress, Mechanical, Dental Pulp Cavity, Root Canal Preparation, Post and Core Technique
Unfilled resin, Adolescent, Polyurethanes, Retention of fiber post, Polyethylene Glycols, Acid Etching, Dental, Polymethacrylic Acids, Materials Testing, Fiber post, Humans, Bisphenol A-Glycidyl Methacrylate, Resin cement, Cementation, Dental Bonding, Humidity, Etch-and-rinse technique, Push-out test, DENTIN BONDING SYSTEMS, Etch-and-rinse technique; Fiber post; Push-out test; Resin cement; Retention of fiber posts; Unfilled resin, Resin Cements, Dentin-Bonding Agents, Dentin, Microscopy, Electron, Scanning, Methacrylates, Stress, Mechanical, Dental Pulp Cavity, Root Canal Preparation, Post and Core Technique
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