Abstract
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 technique. One 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 surfaces. Different primer treatments (Monobond N, Z-PRIME Plus, and no primer) were also applied to the zirconia surfaces. Subsequently, 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 months. The 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 surface. Compared with the control group, the resin-zirconia SBSs of the sandblasting group and silica-zirconia-coating group were significantly increased (P<0.05). The silica-zirconia coating followed by the application of Monobond N produced the highest SBS (P<0.05). Water aging significantly reduced the resin-zirconia SBS (P<0.05).
Conclusions
Dip-coating with silica-zirconia might be a feasible way to improve resin-zirconia bonding.
摘要
目的
采用浸渍提拉法在氧化锆表面形成多孔硅锆涂层,评估表面特征及其对氧化锆-树脂粘接强度的影响。
创新点
将纳米氧化硅和氧化锆粉末制备成稳定的混合悬浮液,采用浸渍提拉法在氧化锆表面形成均匀、多孔、厚度可控的硅锆涂层,提升氧化锆粘接性能。
方法
在本研究中,我们将纳米氧化硅和氧化锆粉末在50%乙醇中分散,然后对悬浮液进行粒径分析和扫描电镜观察。我们采用浸渍提拉法在氧化锆表面形成硅锆涂层,使用扫描电镜、能量色散谱仪和X线衍射分析对涂层进行表面分析。氧化锆表面在涂布不同处理剂后,与树脂柱粘接。在水中存储24小时及6个月后,使用万能实验仪测量其剪切粘接强度,并分析其断裂模式。
结论
浸渍提拉法形成硅锆涂层是提升氧化锆粘接性能的有效方法。
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (No. 81771120) and the Zhejiang Provincial Natural Science Foundation of China (Nos. LGF20H140009 and LQ18H140001). We thank Mr. Nianhang RONG and Ms. Xi ZHENG (Bio-ultrastructure Analysis Laboratory, Analysis Center of Agrobiology and Environmental Science, Zhejiang University, Hangzhou, China) for their assistance in experiments.
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Zhiwei SU and Baiping FU designed the study. Zhiwei SU performed the experiments. Zhiwei SU and Mingxing LI wrote and edited the manuscript. Ling ZHANG and Chaoyang WANG performed data analysis. Leiqing ZHANG, Jingqiu XU, and Baiping FU contributed to editing of the manuscript. All authors have read and approved the final manuscript and, therefore, have full access to all the data in the study and take responsibility for the integrity and security of the data.
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Zhiwei SU, Mingxing LI, Ling ZHANG, Chaoyang WANG, Leiqing ZHANG, Jingqiu XU, and Baiping FU declare that they have no conflict of interest.
This article does not contain any studies with human or animal subjects performed by any of the authors.
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Su, Z., Li, M., Zhang, L. et al. A novel porous silica-zirconia coating for improving bond performance of dental zirconia. J. Zhejiang Univ. Sci. B 22, 214–222 (2021). https://doi.org/10.1631/jzus.B2000448
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DOI: https://doi.org/10.1631/jzus.B2000448