广东医学2024，Vol.45Issue(9)：1118-1123,6.DOI:10.13820/j.cnki.gdyx.20233745
聚多巴胺对氧化锆粘接强度的影响及老化后的变化
Effect of polydopamine on bonding strength of zirconia and study on aging test
摘要
Abstract
Objective To explore the effect of Polydopamine(PDA)compound coating on the bonding strength of zirconia and self-bonding resin cement 3M ESPE Rely XTM U200 and the change of bonding strength after aging test.Methods Zirconia specimens were treated with three different surface treatments:"sandblasting,""sandblasting+si-lanization,"and"sandblasting+PDA composite coating."These treated zirconia specimens were then bonded to resin blocks using 3M U200.The samples were divided into three groups for immediate shear bond strength testing,thermocy-cling aging,and pH cycling aging followed by shear bond strength testing.Statistical analysis was performed on the bond-ing strength data of each group.Results The"sandblasting+silanization"group showed the highest bonding strength between zirconia and resin,with statistically significant differences(P＜0.05).The"sandblasting+PDA composite coating"group had slightly higher bonding strength than the"sandblasting"group,but the difference was not statistically significant(P＞0.05).After aging tests,all surface treatment groups experienced a significant reduction in bonding strength(P＜0.05).The"sandblasting+PDA composite coating"group exhibited the greatest decrease in bonding strength,which was statistically significant(P＜0.05).The decrease in bonding strength for the"sandblasting+si-lanization"group was slightly higher than that of the"sandblasting"group,but the difference was not statistically signifi-cant(P＞0.05).Conclusion The PDA composite coating did not effectively enhance the bonding strength between zir-conia and resin cement.Its bonding strength and stability after aging were inferior to those of the silanization coating.关键词
聚多巴胺/氧化锆/树脂粘接剂/粘接强度Key words
polydopamine/zirconia/resin adhesives/bonding strength分类
医药卫生引用本文复制引用
张婧,吴洁,王璐,周静,张钊..聚多巴胺对氧化锆粘接强度的影响及老化后的变化[J].广东医学,2024,45(9):1118-1123,6.基金项目
河北省财政厅2020年政府资助临床医学优秀人才培养项目带头人(2020048149-2) （2020048149-2）
河北省卫生健康委员会医学科学研究课题计划指令性课题(20190098) （20190098）
