Study On Dental Colored Zirconia Restoration

摘要：

　　This paper explored the color and mechanical properties of CeO2 and Er2O3 shaded zirconia ceramics for dental application.Twelve kinds of colored dental ZrO2 powders were prepared.Experimental results showed that the hue of the materials shift from yellow-green to y,ellow-red with the increasing concentration of the CeO2 and Er2O3,while reducing of the brightness(L) value was little.Three-point bending strength decreased form 1209MPa to 845MPa after coloring,which was lower than the uncolored materials (1301MPa).The fracture toughness decrease slightly.SEM observation revealed more porous microstructure in specimen containing both two additives.Cerium oxide and erbium oxide are candidates of color additives for shading dental zirconia ceramics.

关键词： Dental ceramics Color zirconia Mechanical properties

作者: Ning Wen Yuanfu Yi Weiwei Zhang Hongchen Liu Longquan Shao Bin Deng Jiemo Tian

作者单位: Department of the prosthodontics,The General Hospital of Chinese PLA,Beijing 100853,China The State Key Laboratory of New Ceramics and Fine Processing,Tsinghua University,Beijing 100084,Chin

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 1255-1257

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）