The Research Of Putting Ag-TiO₂ Into Zinc Phosphate Cement And Its Antibacterial Property And Bonding Strength

Purpose:The Ag-TiO₂ adding zinc phosphate cement powder made from comp osite zinc phosphate cement.To test the influence of putting Ag-TiO₂ into zinc pho sphate cement and its antibacterial property and bondingstrength.Method:Putting Ag-TiO₂ into the powder of zinc phosphate cement according to the mass fraction of 1%,2%,3%,4%as experience group,the control group was not added into any substance.To use the counting method of bacterial colony to test the antibacterial property of every cement group,universal material testing machine to test bonding strength,to observe surface structure.Results:Composite zinc phosphate cement have antimicrobial properties.The z inc phosphate cement containing 4%Ag-TiO₂ has the best antibacterial effect;the zi nc phosphate cement containing 3%Ag-TiO₂ has the highest bond strength;it was no significant difference on the surface structure between the groups with different mass fraction of composite zinc phosphate cement.Conclusion:Ag-TiO₂ can make traditional zinc phosphate cement has antibacte rial and does not affect the bond strength.Recommended zinc phosphate cement b ond band with 3%Ag-TiO₂.