华西口腔医学杂志

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着色剂对口腔修复用钇稳定氧化锆 陶瓷粉体制备的影响

王博 陈剑锋 张言春 王如   

  1. 大连医科大学附属第一医院口腔科,大连 11601
  • 收稿日期:2015-02-05 修回日期:2015-07-05 出版日期:2015-10-01 发布日期:2015-10-01
  • 通讯作者: 王如,教授,博士,E-mail:11566121@qq.com
  • 作者简介:王博,主治医师,硕士,E-mail:wwangbo_306@163.com
  • 基金资助:

    国家自然科学基金面上项目(51472270)

Effects of colorants on yttria stabilized tetragonal zirconia polycrystals powder

Wang Bo, Chen Jianfeng, Zhang Yan- chun, Wang Ru.   

  1. Dept. of Stomatology, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
  • Received:2015-02-05 Revised:2015-07-05 Online:2015-10-01 Published:2015-10-01

摘要:

目的  探讨着色剂氧化铁(Fe2O3)、氧化铈(CeO2)对口腔修复用钇稳定氧化锆陶瓷(Y-TZP)制备粉体的影响。方法  按照一定比例将口腔修复用Y-TZP粉体和着色剂(Fe2O3 0.15%或CeO2 4%)分别混合,配置成具有一定固含量的Y-TZP喷雾干燥浆料。通过喷雾造粒的方法进行着色和未着色Y-TZP粉体造粒。粉体分成3组,分别为未着色Y-TZP组、0.15%Fe2O3着色Y-TZP组、4%CeO2着色Y-TZP组,分别利用激光粒度分析仪和光学显微镜进行3组粉体粒径和形貌的测量和分析。结果  3组口腔修复用Y-TZP造粒粉体的颗粒D50总体均数差异有统计学意义(P<0.05)。均数两两比较时,0.15%Fe2O3着色Y-TZP粉体D50与未着色Y-TZP粉体、4%CeO2着色Y-TZP粉体D50均数差异有统计学意义(P<0.05);未着色Y-TZP粉体与4%CeO2着色Y-TZP粉体D50均数差异无统计学意义(P>0.05)。Fe2O3、CeO2作为Y-TZP的内着色剂,粉体大多成球形。结论  CeO2作为口腔修复用Y-TZP的着色剂,对造粒粉料的粒径分布以及成球性能影响不大;Fe2O3作为着色剂进行内着色对颗粒的粒径产生一定的影响。

关键词: 钇稳定氧化锆陶瓷, 着色氧化锆, 激光粒度分析

Abstract:

Objective  To evaluate the effect of Fe2O3 and CeO2 as colorants on yttria stabilized tetragonal zirconia polycrystals (Y-TZP) powder. Methods  The spray granulation slurry of colored zirconia was prepared with different concentrations of Fe2O3 (0.15%) and CeO2 (4%), which were added in Y-TZP. Zirconia powder was made by spray granulation. The powder specimens were divided into three groups: uncolored zirconia, Fe2O3 (0.15%) zirconia, and CeO2 (4%) zirconia. The particle morphologies of the powder specimens were measured with a laser particle size analyzer and an optical microscope. Results  The differences in D50 among the three groups were statistically significant (P<0.05). Group Fe2O3  showed a significant difference from groups CeO2 and uncolored zirconia (P<0.05). Group uncolored zirconia showed no significant difference from group CeO2 (P>0.05). Mostly spherical powder was observed in the three groups. Conclusion  Fe2O3 as a colorant can affect particles, whereas CeO2 has no effect.

Key words: yttria stabilized tetragonal zirconia polycrystals, colored zirconia, laser particle size analyzer