Construction of Nanostructured Glass-Zirconia to Improve the Interface Stability of Dental Bilayer Zirconia

被引：1
作者：
Zhou, Ming [1 ,2 ]
Zhang, Xiaoyu [1 ,2 ]
Zhang, Yaming [3 ]
Li, Ding [3 ]
Zhao, Zhe [1 ,2 ]
Wang, Qing [1 ,2 ]
Tang, Kai [1 ,2 ]
Niu, Lina [1 ,2 ]
Wang, Fu [1 ,2 ]
机构：
[1] Fourth Mil Med Univ, State Key Lab Mil Stomatol, Sch Stomatol, Dept Prosthodont, Xian 710032, Peoples R China
[2] Fourth Mil Med Univ, Natl Clin Res Ctr Oral Dis, Sch Stomatol, Dept Prosthodont, Xian 710032, Peoples R China
[3] Xian Univ Posts & Telecommun, Sch Sci, Xian 710061, Peoples R China
来源：
NANOMATERIALS | 2023年 / 13卷 / 04期
基金：
中国国家自然科学基金;
关键词：
zirconia; bonding force; interface stability; nanostructured glass-zirconia; dental restoration; SHEAR BOND STRENGTH; GRADED ZIRCONIA; SURFACE-TREATMENT; CERAMICS; PORCELAIN/ZIRCONIA; RESTORATIONS; RESISTANCE; FRACTURE;
D O I：
10.3390/nano13040678
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Bilayer zirconia restoration is one of the most commonly used restorations in dental practice, but the high frequency of the cohesive/adhesive fracture of veneered porcelain is still a problem. This paper focuses on the development of nanostructured glass-zirconia to improve the interface stability of dental zirconia substrate and veneered porcelain. A novel SiO2-Li2O-Al2O3 (SLA) glass was prepared and infiltrated into the surface of fully sintered dental zirconia to obtain nanostructured glass-zirconia structure. The prepared glass-zirconia was analyzed with scanning electron microscopes (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction spectroscopy (XRD). The wettability, roughness and 3D morphology of zirconia were altered, and shear bonding strength (SBS) test demonstrated almost double increase in SBS values of the nanostructured glass-zirconia structure. The failure modes and microstructure characteristics also verified the improved interfacial stability. This investigation provides a promising method for enhancing the structural stability of bilayer zirconia restorations.
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页数：11
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