Zirconia-TZP and alumina--advanced technologies for the manufacturing of single crowns.
Zirconia-TZP and alumina--advanced technologies for the manufacturing of single crowns.
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氧化锆-TZP 和氧化铝——制造单冠的先进技术。
DOI：
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发表时间：
1999
影响因子：
1.3
通讯作者：
B. Reitz
中科院分区：
文献类型：
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作者：
Luthardt Rg;O. Sandkuhl;B. Reitz
基于氧化锆-TZP-框架的全瓷冠与氧化铝（PROCERA-AllCeram）的内冠相比具有优势，因为它们具有机械性能。氧化锆-TZP-框架是在光学数字化后使用改进的Predict-DCS-系统制造的。测定氧化锆-TZP-支架和氧化铝-内冠（PROCERA-AllCeram）的平均断裂强度和垂直边缘差异。采用划痕试验和剪切结合强度测试方法，研究了合适的饰面陶瓷在预处理氧化锆TZP表面的结合强度。结果表明，氧化锆-TZP和贴面陶瓷之间的结合以及贴面冠的适合精度与已建立的系统相当。
All-ceramic crowns based on Zirconia-TZP-frameworks should have advantages in comparison to copings of Alumina (PROCERA-AllCeram) because of their mechanical properties. Zirconia-TZP-frameworks were manufactured after optical digitising using a modified Precident-DCS-System. The mean fracture strength and the vertical marginal discrepancy of Zirconia-TZP-frameworks and Alumina-copings (PROCERA-AllCeram) were determined. Additionally the bonding strength of suitable veneering ceramics on pre-treated Zirconia-TZP surfaces was examined using the scratch test and the shear bonding strength. The results show that the bonding between Zirconia-TZP and the veneering ceramics as well as the precision of fit of the veneered crowns are comparable with established systems.