金瓷修复体着色技术对着色剂色稳定性的影响

The Effect of Stain Application Techniques on the Color Stability of Ceramic Stains

金瓷修复体不同的上色技术对瓷表面着色剂的色稳定性有一定影响，而且不同颜色的着色剂受影响程度也有所不同。本文采用国际通用的ＣＩＥ１９７６ＬＡＢ色度系统，通过使用三种临床常用上色技术，对ＶｉｔａＶＭＫ６８五种着色剂作色稳定性研究，结果表明：无论何种上色技术，五种着色剂颜色不稳定性均较显著；五种着色剂中，橙色着色剂自身上釉时，颜色改变较小；而黄、蓝色着色剂自身上釉时，颜色变化最大；三种上色技术对灰、棕黄着色剂的影响无显著性差异。

Different stain application techniques affect the color stability of the ceramic stains, and the extent of the color changes are different because of the various colors of the stains.Five stains of Vita VMK 68 porcelain system were studied in the test. Three different stain application techniques were used and the international standard CIE 1976 LAB color system was used to record the result of the test. These conclusions could be made:All of the five stains showed significant color changes no matter which stain application technique was used; For yellow and blue stains,the autoglazing technique demonstrated the larger color change than the other two techniques; On the other hand.it showed the smallest color change for orange stain; For gray and yellow-brown stains, different stain techniques had the same effect on the stability of color.