Evaluation Of Silane Coupling Agents On Resin-Titanium Bonding

Session: Dental MaterialsObjectives: To evaluate the shear bond strength of five commercially available silane coupling agents with titanium and resin, with the pre-treatment of silica-coating Methods: The silanes were applied onto tribochemically silica-coated titanium surfaces. Experimental bis-GMA resin stubs were applied and photo-polymerized onto titanium surfaces treated. The specimens were subjected for three different conditions: 1) dry storage for 24 h, 2) thermocycling interval (6000 cycles, 5-55 oC) and 3) storage in de-ionized water at 37 oC for six months respectively. Shear bond strengths of the resin to titanium were measured by using a universal testing machine. Surface examination was made with a scanning electron microscope (SEM) after the bond strength test Results: The silanes were applied onto tribochemically silica-coated titanium surfaces. Experimental bis-GMA resin stubs were applied and photo-polymerized onto titanium surfaces treated. The specimens were subjected for three different conditions: 1) dry storage for 24 h, 2) thermocycling interval (6000 cycles, 5-55 oC) and 3) storage in de-ionized water at 37 oC for six months respectively. Shear bond strengths of the resin to titanium were measured by using a universal testing machine. Surface examination was made with a scanning electron microscope (SEM) after the bond strength test Conclusions: There were no significant differences in shear bond strength and durability of five tested commercial silanes for enhancing resin-titanium bonding