Evaluation of the marginal accuracy of different all-ceramic crown systems after simulation in the artificial mouth
Evaluation of the marginal accuracy of different all-ceramic crown systems after simulation in the artificial mouth
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DOI：
10.1046/j.1365-2842.1999.00449.x
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发表时间：
1999-07-01
影响因子：
2.9
通讯作者：
Strub, JR
中科院分区：
文献类型：
--
作者：
Beschnidt, SM;Strub, JR
在人工口腔中循环预加载之前和之后，评估了五种不同全瓷冠系统（In-Ceram（R）、Empress（R）染色技术、Empress（R）镶面技术、Celay（R）长石系统、Celay In-Ceram（R）系统）的体外边缘适合性。将牙冠固定到准备好的90度肩台的提取的天然上颌切牙上。结果进行了比较，那些与磷酸锌粘固剂粘结的圆形瓷对接边缘的金属烤瓷冠（PPM）。边缘差异分析显示，差异有显著性（P
The in vitro marginal fit of five different all-ceramic crown systems (In-Ceram(R), Empress(R) staining technique, Empress(R) veneering technique, Celay(R) feldspathic system, Celay In-Ceram(R) system) was evaluated before and after cyclic preloading in an artificial mouth. The crowns were adhesively luted to extracted natural maxillary incisors prepared with a 90 degrees shoulder. The results were compared to those for porcelain-fused-to-metal (PPM) crowns with circular porcelain-butt margins which were cemented with zinc phosphate cement. The analysis of the marginal discrepancies showed significant (P