3Y-TZP ceramics simulation of the fluorescence properties of natural teeth by doping Eu2+

被引：0

作者：

Shi, Lianshui ^{[1
,2
]}

Zhao, Fujian ^{[2
]}

Chen, Weifan ^{[3
]}

Zhou, Xuezhen ^{[3
]}

Wang, Zhenshi ^{[2
]}

Li, Yongxiu ^{[1
]}

机构：

[1] Research Center for Rare Earths & Micro/Nano Functional Materials, Nanchang University, Nanchang, China

[2] Department of Prosthodontics, Stomatological Hospital Affiliated to Nanchang University, Nanchang, China

[3] School of Materials Science and Engineering, Nanchang University, Nanchang, China

来源：

Gongneng Cailiao/Journal of Functional Materials | 2015年 / 46卷 / 18期

关键词：

Scanning electron microscopy - Cytotoxicity - Emission spectroscopy - Europium compounds - Crystal structure - X ray diffraction - Zirconia;

D O I：

10.3969/j.issn.1001-9731.2015.18.015

中图分类号：

学科分类号：

摘要：

Eu2+-doped 3Y-TZP dental bioceramic was prepared by immersing the presintering 3Y-TZP in Eu(NO3)3solution, followed with calcination under reducing atmosphere. The surface microstructure, phase constitution, fluorescence spectrum and cytotoxicity were analyzed by X-ray diffraction (XRD), scanning electron microscope (SEM), fluorescence spectrometer and MTT test. The results showed that Eu2+-doped 3Y-TZP presented a densification morphology and the average grain size was 450 nm. There were no other crystal structure other than t-ZrO2was found. The emission spectrum excited by 365 nm showed a characteristic blue broad band with the peak at about 470 nm, which corresponded to 4f65d1→4f7(8S7/2) transition of Eu2+. This emission spectrum was similar to the natural tooth which can be used to simulation of the fluorescence emission of natural teeth. The cytotoxicity grade of Eu2+-doped 3Y-TZP was I, which can be used for clinical with biological safety. © 2015, Journal of Functional Materials. All right reserved.

引用

页码：18074 / 18077

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