中国组织工程研究与临床康复2011，Vol.15Issue(47)：8829-8832,4.DOI:10.3969/j.issn.1673-8225.2011.47.022
着色剂氧化铈及氧化铒对牙科氧化锆陶瓷颜色及性能的影响
Effect of cerium oxide and erbium oxide as colorants on the chromaticity and mechanical properties of dental zirconia ceramic
李德超 1刘文斌 2赵淑金 2冯卉姗 1杨东红 1高士军1
作者信息
- 1. 佳木斯大学口腔医学院,黑龙江省佳木斯市154002
- 2. 佳木斯大学材料学院,黑龙江省佳木斯市154002
- 折叠
摘要
Abstract
BACKGROUND: Some studies have proposed adding rare earth oxides into zirconia, to change the color of zirconia oxide in order to meet the clinical requirements of the mouth for beautility.OBJECTIVE: To evaluate the chromatic value and mechanical properties of zirconia added with rare earth oxides.METHODS: ShadeEye computer colorimetric meter was used to test the L * a * b * values of the specimens. X-ray diffraction (D/Max-RB) was used to analyze the crystalline structure of materials. Using EZ-100 universal experiment machine, three-point bending strength was measured. The bending fracture microscopic form was observed under scanning electron microscope.RESULTS AND CONCLUSION: ①The main crystalline structure of sintered ziconia specimens was tetragonal zirconia, and there was no another crystalline structure. ②The mixture of cerium oxide and ziconia presented with pale yellow; the mixture of erbium oxide and ziconia presented with pale pink, and the color deepened with the dose increase. Two hybrid specimens made ziconia presenting orange, and with the color deepened with the dose increase. ③The flexural strength of the materials added with cerium dioxide or erbium oxide alone was in downtrend. The flexural strength of the specimens added with the mixture of cerium dioxide and erbium oxide was decreased with the increase of cerium dioxide and erbium oxide. However, the single cerium dioxide only led to a small decrease in the flexural strength, and erbium oxide significantly increased the decrease of flexural strength. The color of zironia mixed with rare earth oxides can be changed, and a certain flexural resistance appears.关键词
氧化锆/着色剂/色度值/机械性能/氧化铈/氧化铒分类
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李德超,刘文斌,赵淑金,冯卉姗,杨东红,高士军..着色剂氧化铈及氧化铒对牙科氧化锆陶瓷颜色及性能的影响[J].中国组织工程研究与临床康复,2011,15(47):8829-8832,4.
