title: Effect of ceramic surface treatment on the shear bond strength of a resin cement to different ceramic systems.
abstract: This study evaluated three surface treatments and their effect on the shear bond strength between a resin cement and one of three ceramics. The ceramic surfaces were evaluated with scanning electron microscopy (SEM) as well. Specimens were treated with 50 μm aluminum oxide airborne particles, 10% hydrofluoric acid etching, or a combination of the two. Using a matrix with a center hole (5.0 mm x 3.0 mm), the ceramic bonding areas were filled with resin cement following treatment. The specimens were submitted to thermal cycling (1,000 cycles) and the shear bond strength was tested (0.5 mm/minute). The failure mode and the effect of surface treatment were analyzed under SEM. Data were submitted to ANOVA and a Tukey test (α = 0.05).  Duceram Plus and IPS Empress 2 composite specimens produced similar shear bond strength results (p > 0.05), regardless of the treatment method used. Hydrofluoric acid decreased the shear bond strength of In-Ceram Alumina specimens. For all materials, surface treatments changed the morphological surface. All treatments influenced the shear bond strength and failure mode of the ceramic/resin cement composites.
authors.affiliation: Department of Restorative Dentistry, Tres Coracoes Dental School, Vale do Rio Verde Univeristy, Minas Gerais, Brazil.
authors.forename: Joao Gustavo Rabelo
authors.initials: JG
authors.lastname: Ribeiro
authors.forename: Jose Claudio Martins
authors.initials: JC
authors.lastname: Segalla
authors.forename: Fabiano
authors.initials: F
authors.lastname: Perez
authors.forename: Jose Carlos Rabelo
authors.initials: JC
authors.lastname: Ribeiro
authors.forename: Marcos Ribeiro
authors.initials: MR
authors.lastname: Moyses
mesh_terms: D000704:Analysis of Variance; D003188:Composite Resins / Q000737:chemistry*; D001840:Dental Bonding / Q000379:methods*; D003776:Dental Porcelain / Q000737:chemistry*; D003799:Dental Stress Analysis; D008855:Microscopy, Electron, Scanning; D019279:Resin Cements / Q000737:chemistry*; D033081:Shear Strength; D013499:Surface Properties
chemical_list: D003188:Composite Resins; D019279:Resin Cements; D003776:Dental Porcelain