Influence of abutment materials on the resultant color of heat-pressed lithium disilicate-ceramics
Influence of abutment materials on the resultant color of heat-pressed lithium disilicate-ceramics
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DOI：
10.4012/dmj.25.20
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发表时间：
2006-03-01
影响因子：
2.5
通讯作者：
Matsumura, Hideo
中科院分区：
文献类型：
--
作者：
Shimada, Kazuki;Nakazawa, Motoko;Matsumura, Hideo
本研究的目的是评价基牙材料对不同厚度IPS Empress 2瓷冠颜色的影响。陶瓷顶盖样本（12.0 X 12.0 X 0.8-2.0 mm）由IPS Empress 2材料（铸锭-100，n=5/组）制成。基台样本是由一个建立复合材料，金合金，或银钯合金。使用色度计根据CIE L*a*B* 系统评价颜色。测量每个基台上不同厚度的陶瓷顶盖试样的L*a*B* 值。然后，计算不同基台样品上陶瓷顶盖样品之间的色差（Δ E*ab）值。不同瓷冠厚度的基牙间Δ E*ab值差异有统计学意义（P
The purpose of this study was to evaluate the influence of abutment materials on the color of IPS Empress 2 ceramic coping with different thicknesses. Ceramic coping specimens (12.0 X 12.0 X 0.8-2.0 mm) were fabricated from IPS Empress 2 material (Ingot-100, n=5/group). Abutment specimens were fabricated from a build-up composite, a gold alloy, or a silver-palladium alloy. Color was evaluated using a colorimeter according to the CIE L*a*b* system. The L*a*b* values of the ceramic coping specimens of different thicknesses on each abutment specimen were measured. Following which, the color difference (Delta E*ab) values between the ceramic coping specimens on various abutment specimens were calculated. Significant differences in Delta E*ab value were observed among different abutment specimens at certain ceramic coping thicknesses (P