title: The effects of three different desensitizing agents on the shear bond strength of composite resin bonding agents.
abstract: The aim of this study was to evaluate the effects of three desensitizing agents on the shear bond strengths of four different bonding agents used to bond composite resin to dentin. A total of 160 extracted human molars were sectioned parallel to the occlusal plane under water cooling, polished and randomly divided into 4 groups of 40. Each group was treated with a different desensitizing agent (Tooth Mousse, Ultra-EZ, Cervitec Plus), except for an untreated control group. Each group was then randomly subdivided into 4 groups of 10, and a different dentin bonding agent (XP Bond, AdheSE, Adper Prompt L-pop, GBond) was applied to each group in order to bond the specimens to a resin composite (Gradia Direct) built up using a plastic apparatus. A Universal Testing Machine was used to measure the shear bond strength of each specimen. Statistical analysis was performed using one-way ANOVA and Tukey's tests. With the exception of the Control/AdheSE and Ultra-EZ/XP Bond groups, no statistically significant differences were found in the shear bond strength values of the groups tested. These findings suggest that the use of different desensitizing agents does not affect the shear bond strength of various adhesive systems used to bond resin composite to dentin.
authors.affiliation: Department of Restorative Dentistry, Faculty of Dentistry, Erciyes University, Kayseri, Turkey. orcunzorba@yahoo.com
authors.forename: Yahya Orcun
authors.initials: YO
authors.lastname: Zorba
authors.forename: Ali
authors.initials: A
authors.lastname: Erdemir
authors.forename: Ertugrul
authors.initials: E
authors.lastname: Ercan
authors.forename: Ayce Unverdi
authors.initials: AU
authors.lastname: Eldeniz
authors.forename: Baris
authors.initials: B
authors.lastname: Kalaycioglu
authors.forename: Mustafa
authors.initials: M
authors.lastname: Ulker
mesh_terms: D000704:Analysis of Variance; D057133:Dentin Desensitizing Agents / Q000737:chemistry* / Q000494:pharmacology*; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D019544:Equipment Failure Analysis; D006801:Humans; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D015233:Models, Statistical; D008963:Molar / Q000187:drug effects; D019279:Resin Cements / Q000737:chemistry*; D033081:Shear Strength / Q000187:drug effects*
chemical_list: D057133:Dentin Desensitizing Agents; D017220:Dentin-Bonding Agents; D019279:Resin Cements