title: Bonding of resin core materials to lithium disilicate ceramics: the effect of resin cement film thickness.
abstract: The aim of this study was to investigate the effect of different resin cement film thicknesses on the shear bond strength of resin core materials to lithium disilicate ceramics. Forty IPS Empress 2 ceramic disks were bonded to the core materials (Bis-core and Smile) with resin cement film thicknesses of 50 or 100 μm. Shear bond strength was measured using a universal testing machine. Data were analyzed using two-way analysis of variance and independent t tests. The core material used and resin cement film thickness had a significant effect on shear bond strength values (P < .001). Greater resin cement film thickness resulted in decreased bond strength of the core materials to lithium disilicate ceramics.
authors.affiliation: School of Dental Technology, Hacettepe University, Ankara, Turkey. isilcekic@hacettepe.edu.tr
authors.forename: Isil
authors.initials: I
authors.lastname: Cekic-Nagas
authors.forename: Senay
authors.initials: S
authors.lastname: Canay
authors.forename: Erdal
authors.initials: E
authors.lastname: Sahin
mesh_terms: D000704:Analysis of Variance; D001840:Dental Bonding; D003776:Dental Porcelain; D003799:Dental Stress Analysis; D018020:Lithium Compounds; D008422:Materials Testing; D011176:Post and Core Technique; D019279:Resin Cements; D033081:Shear Strength; D017640:Silicates; D013499:Surface Properties
chemical_list: D018020:Lithium Compounds; D019279:Resin Cements; D017640:Silicates; D003776:Dental Porcelain