华西口腔医学杂志

• 基础研究 • 上一篇    下一篇

烧结次数对稀土氧化物着色齿科四方多晶氧化锆陶瓷的色度学影响

高燕1,2 张富强1,2 黄慧1,2 归林华3   

  1. 1.上海交通大学医学院附属第九人民医院·口腔医学院口腔修复科;2.上海市口腔医学研究所·上海市口腔医学重点实验室, 上海200011;3.中国科学院硅酸盐研究所, 上海200050
  • 收稿日期:2010-10-25 修回日期:2010-10-25 出版日期:2010-10-20 发布日期:2010-10-20
  • 通讯作者: 张富强,Tel:021-63138341-5276
  • 作者简介:高燕(1979—),女,陕西人,住院医师,博士
  • 基金资助:

    上海市科学技术委员会生物医药重点基金资助项目(09411954600);上海市科学技术委员会基金资助项目(0-8DZ2271100);上海市高校选拔培养优秀青年教师科研专项基金资助项目(jdy09046)

The effect of firing times on the chroma of tetragonal zirconia polycrystal by adding rare -earth oxides

GAO Yan1,2, ZHANG Fu-qiang1,2, HUANG Hui1,2, GUI Lin-hua3   

  1. 1. Dept. of Prosthodontics, The Ninth People’s Hospital, School of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China; 2. Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai 200011, China; 3. Dept. of Silicate, Chinese Academy of Sciences, Shanghai 200050, China
  • Received:2010-10-25 Revised:2010-10-25 Online:2010-10-20 Published:2010-10-20
  • Contact: ZHANG Fu-qiang,Tel:021-63138341-5276

摘要:

目的探讨烧结次数对以稀土氧化物作为着色剂制备的与天然牙颜色匹配的齿科四方多晶氧化锆陶瓷颜色的影响。方法采用内着色法制备6种不同着色剂成分含量的与天然牙色匹配的齿科钇稳定四方多晶氧化锆陶瓷(S1、S2、S3、S4、S5、S6)试件,并使用ShadeEye NCC电脑比色仪对不同烧结次数的试件的颜色进行色度测定,采用SAS 6.12统计软件对反复烧结不同次数的颜色参数变化进行单因素方差分析。结果6种试件反复烧结后的色差变化范围为0.10~1.47,其中S1、S2、S6试件的明度值降低(P<0.05),S3、S4、S5试件的明度值无明显变化(P>0.05),而6种试件的色相值和彩度值均无明显变化(P>0.05)。结论稀土氧化物着色齿科四方多晶氧化锆陶瓷的颜 色稳定性高,反复烧结对其色度无明显影响。

关键词: 四方多晶氧化锆, 稀土氧化物, 烧结次数, 色度

Abstract:

Objective The aim of this study is to evaluate whether the firing times affect the chroma of zirconia by adding rare-earth oxides. Methods Six kinds(S1, S2, S3, S4, S5, S6) of tooth-like yttria stabilized tetragonal  zirconia polycrystal(Y-TZP) were available by introducing internal colorating technology, the color were gauged with ShadeEye NCC chromatometry instrument, and one -way ANOVA was used to analysis the color of each kind  of tooth-like zirconia after 1, 2, 3, 4, 5 times firing individually. Results After 1, 2, 3, 4, 5 times firing respectively, the chromatic aberration ranged between 0.10-1.47 merely. The luminosity of three kinds(S1, S2, S6) of tooth-like zirconia were decreased(P<0.05), the luminosity of the other three kinds(S3, S4, S5) of tooth-like zirconia were not obviously changed(P>0.05), as for the hue and chroma, no significant differences were found(P>0.05). Conclusion There are no significant influence on the color of tooth-like Y-TZP after 1, 2, 3, 4, 5 times firing respectively, the chroma of yttria stabilized tetragonal zirconia polycrystal by adding rare-earth oxides are with high stability.

Key words: tetragonal zirconia polycrystal, rare-earth oxide, firing times, chroma