Evaluation of osseointegration using partially stabilized zirconia coated implants by electrophoretic deposition &dipping methods

Abstract

Background: Partially stabilized Zirconia(PSZ)coated implant demonstrated the distinct effects on the surfacecomposition of the implant, and activates on osteoblasts. Zirconia improves cell proliferation significantly during thefirst days of implantation, and may improve attachment and adhesion strength of the implant. The aim of the studywas to evaluate the influence of the coated biomaterial (zirconium) on osseointegration of cpTi implantradiographically with mechanical test.Materials and Methods: Seventy-two commercially pure titanium implants(cpTi)were used in this study,(24)implantswere coated with PSZ by electrophoretic deposition(EPD)method,&(24) by dipping method, the rest24 implants wereused as controls, they were inserted in the tibia of (32)New Zealand white rabbits & were followed for 2,&6weeks.Mechanical torque removal test for evaluation of osseointegration was performed,Results: Results revealed that bone –implant contact (BIC), increased with time &that implants coated with PSZ bydipping method have shown higher torque mean values than those coated by EPD method.Conclusion: Dip-coating of the cpTi implants with PSZ, can be considered as an alternative coating method andenhance better bone implant contact than EPD.