Affection of Post-Core Materials on the Resultant Color of Lithium Disilicate Ceramic Restorations

摘要：

　　The purpose of the study was to evaluate the affection of post-core materials on the resultant color of lithium disilicate ceramic restorations.Twenty disk-shaped core-veneer specimens were prepared with IPS e.max Press and IPS e.max Ceram.Twenty-five substructure specimens were also prepared.Color measurements were performed for all specimens with each substructure by a calibrated spectrophotometer.Lab chromatic values were obtained.The chromatic aberration (△E) compared with dentine substructure was 1.33 for ziconia based combinations,1.40 for resin based combinations,4.37 for cobalt chromium alloy based combinations and 3.05 for gold metal alloy based combinations.The zirconia and resin post-core materials are recommended to form substructures for the lithium disilicate ceramic restorations.Cobalt chromium alloy and Gold metal alloy post-core materials are not recommended.

关键词： Post Core Lithium disilicate ceramic

作者: Ting Sun Longquan Shao Yanliang Wang Yuanfu Yi Bin Deng Ning Wen

作者单位: Department of Stomatology,Nanfang Hospital,Southern Medical University,Guangzhou 510515,China School and Hospital of Stomatology,the Wenzhou Medical College,Wenzhou 325027,China Department of Stomatology,the General Hospital of Chinese Peoples Armed Police Forces,Beijing 10003 Department of Stomatology,the General Hospital of Chinese PLA,Beijing 100853,China

会议类型: 国际会议

会议名称: The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))

会议地点: 厦门

会议语种:英文

页码: 1761-1764

在线出版日期: 2011-11-04（万方平台首次上网日期，不代表论文的发表时间）