title: An investigation on the shear bond strength of three dentine adhesives.
abstract: The aim of this investigation was to compare the shear bond strengths of three dentine adhesives tested using an Instron Universal Testing machine at a crosshead speed of 0.5 mm/min. Sixty human molar teeth were used and divided into 3 equal groups where the occlusal surfaces were ground and adhesives were applied overlaid by composite material. Samples were fixed to the Universal Testing machine. Results were recorded in kg/cm2 and converted into MPa units then tabulated and statistically analyzed. Duncan's multiple range statistic test at p < 0.05 showed no statistically significant difference between the shear bond strength values of Scotchbond 2 and Amalgambond; whereas the shear bond strength values of Scotchbond 2 and Amalgambond were significantly higher than those of Gluma. Scanning electron microscopic examinations at X10 and X2500 magnifications showed a dominant adhesive pattern of failure in the samples treated with Gluma, and a mixture of cohesive and adhesive-cohesive patterns of failures in the samples treated with Scotchbond 2 and cohesive patterns of failures in the samples treated with Scotchbond 2 and Amalgambond.
authors.affiliation: Operative Dentistry Dept., Faculty of Oral & Dental Medicine, Cairo University, Egypt.
authors.forename: A A
authors.initials: AA
authors.lastname: Shabka
authors.forename: M M
authors.initials: MM
authors.lastname: Mohsen
mesh_terms: D000328:Adult; D003188:Composite Resins; D001840:Dental Bonding; D017220:Dentin-Bonding Agents; D005976:Glutaral; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates; D008855:Microscopy, Electron, Scanning; D011109:Polymethacrylic Acids; D019279:Resin Cements; D013718:Tensile Strength
chemical_list: C070606:Amalgambond; D003188:Composite Resins; D017220:Dentin-Bonding Agents; D008689:Methacrylates; D011109:Polymethacrylic Acids; D019279:Resin Cements; C067788:scotchbond 2; C044372:Gluma; D005976:Glutaral