Evaluation of the 45-degree labial bevel with a shoulder preparation.
Evaluation of the 45-degree labial bevel with a shoulder preparation.
复制标题
使用肩部准备评估 45 度唇斜面。
DOI：
10.1016/0022-3913(86)90136-8
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
K. Ghalili
中科院分区：
文献类型：
--
作者：
F. V. Panno;F. Vahidi;I. Gulker;K. Ghalili
This study compared the margin opening of cemented porcelain-fused-to-metal crowns of three different casting designs: 80-degree bevels with metal collars, 80-degree bevels with porcelain applied to the labial collars, and 45-degree labial bevels with metal and porcelain to a common margin termination. There were no statistically significant differences between the margin opening of the three groups. Porcelain application and firing did not distort the facial margin. The 45-degree bevel with porcelain to the margin has greater esthetic potential and the same margin adaptation as the 80-degree bevel with an all-metal collar.
