Influence of Primer Containing Phosphate Ester Active Monomer and Resin Cement on the Immediate Aadhesion of Zirconia
QIU Chenming
JIANG Chuanjing
QIU Xiaoxia
Abstract：Objective To evaluate the effect of substrate coating containing phosphate ester active monomer(MDP)and resin cement on the immediate bonding strength between zirconia(ZrO2)and resin in different combinations.Methods A total of 56 ZrO2 samples(0.9 cm×0.9 cm×0.3 cm)were made and selected.According to whether the cleaning agent Zirclean was used after the artificial saliva contamination,they were randomly divided into two groups:A(no)and B(yes).Each group was randomly divided into 4 groups,with a total of 8 groups(n =7),which were respectively A1,B1 group(both containing MDP primer and resin cement),A2,B2 group(only MDP resin cement),A3,B3 group(only containing MDP primer),A4,B4 group(without MDP primer and resin cement).Fifty-six resin columns(d =4 mm,h =4 mm)were made of rigid polyethylene pipes,and they were ground and polished,bonded to the sample,and embedded.Shear bond strength(SBS)was measured and obtained data were statistically analyzed,and the fracture mode was observed.Results There was no significant interaction between detergent and different material combinations(P＞0.05).There were statistically significant differences in group A and B(P＜0.05),and group A4 and B4 were lower than those in group A1,B1,A2,B2 and A3,B3,respectively(P＜0.05).There was no statistical significance in other groups(P＞0.05).There were statistically significant differences in SBS values between groups A and B(P＜0.05),and SBS of group B was higher than that of group A.The fracture mode showed that except for a few mixed failures in groups A2,B1,B2 and B3,the overall results were mainly interface failures.Statistical analysis results showed that there was no statistical significance between the failure conditions of each group(P＞0.05).Conclusion Primer or adhesive resin containing MDP can improve the immediate bonding strength between ZrO2 and resin to a certain extent.There is no difference in the effect of stacking or using only one of them on the immediate bonding strength.The use of cleaning agent Zirclean can improve the immediate bonding strength.
Keywords：phosphate ester active monomerZrO2cleaning agentshear bond strength
Publication Date：2023-12-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 4225-4228 )