摘要
目的:探讨不同桩核材料背景色对3种全瓷底层材料的颜色影响。方法:采用色差计测量各组试样在贵 金属、镍铬合金、银汞合金和树脂背景上的色度值并计算组间色差值。结果:3种EmpressⅡ铸瓷试样在不同背景之 间的色差值均能够为人眼所识别(ΔE>1.5),而渗透氧化铝和氧化锆陶瓷的组间色差值不能为人眼所识别。结 论:AL1色系渗透氧化铝和EmpressⅡ铸瓷材料受背景色影响较大,应采用适当的遮蔽背景色的方法。AL2色系选 用树脂材料作为核桩材料时不须遮蔽背景色。而AL3、AL4色系渗透氧化铝和氧化锆材料不受背景色的影响。
Objective: To study the influence of background color to 3 all-ceramics system core material. Methods: The color of all samples that were put on noble metal,NiCr alloy,HgAg alloy and resin background were measured with chromatism instrument. Results: The color difference of Empress Ⅱ samples was more than 1.5 NBS among different Background color groups, but those of Alumina and Zirconium were less than 1.5 NBS. Conclusion: The influence of background color to Empress Ⅱ and In-Ceram Alumina AL1 was visible,that of In-Ceram Alumina AL2 was lesser,and that of In-Ceram Alumina AL3,AL4 and Zirconium was invisible.
出处
《口腔医学研究》
CAS
CSCD
2005年第1期53-55,共3页
Journal of Oral Science Research
基金
全军医学科学技术研究"十五"计划面上项目资助(编号:01MA198)
关键词
牙科陶瓷
底层材料
背景色
Dental ceramics Core material Background color
