title: Effect of dimethacrylates in resin cement on durability against thermal stress of adhesion to titanium.
abstract: The present study examined the effect of crosslinking of resin cement on durability of adhesion between titanium and resin against repeated thermal stress. Titanium disks, polished and treated with a phosphate monomer, were bonded to acrylic rods with resins composed of poly (methyl methacrylate), methyl methacrylate containing 0 approximately 5% dimethacrylates or diacrylate as crosslinking agent, and a benzoyl peroxide/amine initiator system. The bonded specimens were subjected to thermocycling in water and then tensile strength testing. The addition of 5% crosslinking agent, irrespective of its type, to the resin resulted in a significant decrease in bond strength after 500 thermocycles. No significant difference in durability was revealed among the five crosslinking agents studied.
authors.affiliation: Institute for Medical and Dental Engineering, Tokyo Medical and Dental University, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Imai
authors.forename: M J
authors.initials: MJ
authors.lastname: Chweh
mesh_terms: D000180:Acrylic Resins; D000268:Adhesiveness; D000704:Analysis of Variance; D001896:Boron Compounds / Q000737:chemistry; D003432:Cross-Linking Reagents / Q000737:chemistry; D001840:Dental Bonding; D006358:Hot Temperature; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry*; D008768:Methylmethacrylates / Q000737:chemistry*; D012044:Regression Analysis; D019279:Resin Cements / Q000737:chemistry*; D013718:Tensile Strength; D014025:Titanium
chemical_list: D000180:Acrylic Resins; D001896:Boron Compounds; D003432:Cross-Linking Reagents; D008689:Methacrylates; D008768:Methylmethacrylates; D019279:Resin Cements; C049495:Super-bond; D014025:Titanium