A novel porous silica-zirconia coating for improving bond performance of dental zirconia

作     者：Zhiwei SU Mingxing LI Ling ZHANG Chaoyang WANG Leiqing ZHANG Jingqiu XU Baiping FU Zhiwei SU;Mingxing LI;Ling ZHANG;Chaoyang WANG;Leiqing ZHANG;Jingqiu XU;Baiping FU

作者机构：The Affiliated Hospital of StomatologySchool of StomatologyZhejiang University School of Medicineand Key Laboratory of Oral Biomedical Research of Zhejiang ProvinceHangzhou 310006China 

出 版 物：《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 (浙江大学学报（英文版）B辑（生物医学与生物技术）)

年 卷 期：2021年第22卷第3期

页      面：214-222页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(No.81771120) the Zhejiang Provincial Natural Science Foundation of China(Nos.LGF20H140009and LQ18H140001) 

主　　题：Silica-zirconia coating Zirconia Bond performance Shear bond strength(SBS) 

摘      要：Objective:To coat a zirconia surface with silica-zirconia using a dip-coating technique and evaluate its effect on resin-zirconia shear bond strength(SBS).Methods:A silica-zirconia suspension was prepared and used to coat a zirconia surface using a dip-coating *** hundred and eighty-nine zirconia disks were divided into three groups according to their different surface treatments(polishing,sandblasting,and silica-zirconia coating).Scanning electron microscopy(SEM),energy dispersive X-ray(EDX),and X-ray diffraction(XRD)were used to analyze the differently treated zirconia *** primer treatments(Monobond N,Z-PRIME Plus,and no primer)were also applied to the zirconia ***,180 composite resin cylinders(Filtek Z350)were cemented onto the zirconia disks with resin cement(RelyX Ultimate).The SBS was measured after water storage for 24 h or 6 *** data were analyzed by two-way analysis of variance(ANOVA).Results:SEM and EDX showed that the silica-zirconia coating produced a porous layer with additional Si,and XRD showed that only tetragonal zirconia was on the silica-zirconia-coating *** with the control group,the resin-zirconia SBSs of the,andblasting group and silica-zirconia-coating group were significantly increased(P0.05).The silica-zirconia coating followed by the application of Monobond N produced the highest SBS(P0.05).Water aging significantly reduced the resin-zirconia SBS(P0.05).Conclusions:Dip-coating with silica-zirconia might be a feasible way to improve resin-zirconia bonding.