title: Post silanization improves bond strength of translucent posts to flowable composite resins.
abstract: The aim of the study is to evaluate the effect of post silanization on the microtensile bond strength (MTBS) of translucent fiber posts to seven flowable composite resins used as core material. Seventy fiber posts were employed. In half of the posts, silanization was performed with Monobond-S. A cylindrical plastic matrix was placed around the post and filled with different resins: UniFil Flow Experimental, UniFil Low Flow Plus Experimental, Venus Flow, Revolution Formula 2, Point 4 Flowable, X-Flow, and Wave mv. Five posts were bonded per group. After polymerization, two longitudinal cuts were made on two opposite sides of the post at its outermost periphery. Then, each specimen was serially sectioned, obtaining 30-35 beams with 1-mm(2) cross-sectional area. Each beam was tested in tension in an Instron machine at 0.5 mm/min. ANOVA and Student Newman Keuls tests were performed. The different resin composite materials and the post silanization procedure had a significant effect on MTBS. The application of a silane coupling agent increased MTBS of flowable composite resins to translucent posts. X-flow and Point 4 attained the highest MTBS regardless of the silane treatment.
authors.affiliation: Department of Dental Materials, Faculty of Dentistry, University of Salamanca, Salamanca, Spain.
authors.forename: Alberto
authors.initials: A
authors.lastname: Albaladejo
authors.forename: Raquel
authors.initials: R
authors.lastname: Osorio
authors.forename: Federica
authors.initials: F
authors.lastname: Papacchini
authors.forename: Cecilia
authors.initials: C
authors.lastname: Goracci
authors.forename: Manuel
authors.initials: M
authors.lastname: Toledano
authors.forename: Marco
authors.initials: M
authors.lastname: Ferrari
mesh_terms: D001842:Bone and Bones / Q000502:physiology; D020099:Coated Materials, Biocompatible / Q000737:chemistry*; D003188:Composite Resins / Q000737:chemistry*; D003738:Dental Cements / Q000737:chemistry; D008422:Materials Testing; D011176:Post and Core Technique; D012821:Silanes / Q000737:chemistry*; D013718:Tensile Strength
chemical_list: D020099:Coated Materials, Biocompatible; D003188:Composite Resins; D003738:Dental Cements; C076808:Monobond S; D012821:Silanes; C510179:UniFil Flow; C111840:flowable hybrid composite