title: Effect of adhesive systems associated with resin-modified glass ionomer cements.
abstract: The bonding of resin-modified glass ionomer cements to dentin remains a challenge in clinical routine. In an attempt to improve this property, different materials and techniques have been proposed. This study investigated the shear bond strength of resin-modified glass ionomer cements (Vitremer, 3M/ESPE and Fuji II LC Improved, GC) to human dentin using two one-bottle adhesive systems (Prime & Bond 2.1, Dentsply and Single Bond, 3M/ESPE). The restored specimens were stored in deionized water for 24 h at 37 +/- 1 degrees C, and then the bonded surfaces were tested in shear strength using a Universal testing machine at a crosshead speed of 0.5 mm min(-1). Bond strength means were recorded and failure modes were assessed with a stereomicroscope at 40x magnification. Data were submitted to two-way anova and multiple comparisons were performed using a Tukey statistical test (P < 0.05). Fuji II LC Improved yielded higher bond strength (P < 0.05) than Vitremer in all experimental conditions. No statistically significant differences (P > 0.05) were observed among the proposed dentin surface treatments, although a slight decrease in bond strength was observed when phosphoric acid was used alone. Bond strengths of the resin-modified glass ionomer cements to dentin seemed to be more material-dependent than surface treatment-dependent. It may be concluded that the one-bottle adhesive systems tested in this study did not improve the bond strength of the resin-modified glass ionomer cements to dentin.
authors.affiliation: Department of Operative Dentistry, University North of Paraná- UNOPAR, Londrina, Brazil. tereatta@usp.br
authors.forename: L
authors.initials: L
authors.lastname: Wang
authors.forename: V T
authors.initials: VT
authors.lastname: Sakai
authors.forename: E S
authors.initials: ES
authors.lastname: Kawai
authors.forename: M A R
authors.initials: MA
authors.lastname: Buzalaf
authors.forename: M T
authors.initials: MT
authors.lastname: Atta
mesh_terms: D000096:Acetone / Q000737:chemistry; D000134:Acid Etching, Dental; D000180:Acrylic Resins / Q000737:chemistry; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D002327:Cariostatic Agents; D003188:Composite Resins; D001840:Dental Bonding; D003764:Dental Materials / Q000737:chemistry; D017220:Dentin-Bonding Agents / Q000737:chemistry; D005899:Glass Ionomer Cements / Q000737:chemistry*; D006801:Humans; D008963:Molar; D010756:Phosphoric Acids; D011109:Polymethacrylic Acids / Q000737:chemistry; D019904:Polymethyl Methacrylate / Q000737:chemistry; D012117:Resins, Synthetic / Q000737:chemistry
chemical_list: D000180:Acrylic Resins; D002327:Cariostatic Agents; D003188:Composite Resins; D003764:Dental Materials; D017220:Dentin-Bonding Agents; C431351:Fuji II LC cement improved; D005899:Glass Ionomer Cements; D010756:Phosphoric Acids; D011109:Polymethacrylic Acids; D012117:Resins, Synthetic; C084550:Vitremer; C444444:prime and bond 2.1; C115612:single bond; D000096:Acetone; D017438:Bisphenol A-Glycidyl Methacrylate; C035124:CMW cement; D019904:Polymethyl Methacrylate; C030242:phosphoric acid