Influence of Background Material on 3 Veneered All-Ceramic Core Materials
To study the influence of background color on 3 veneered all-ceramic core materials, the color of all veneered samples that were put on noble metal, Ni-Cr alloy, Ag-Hg alloy and resin background was measured with chromatism instrument (and the chromatic aberration value among groups was Calculated). Under different backgrounds, there was significant difference in the L, a and b values among Empress II samples, there was significant difference in a and b values among In-Ceram Alumina samples, and there was no difference in the L, a and b values among In-Ceram Zirconium samples. After veneered, the influence of background color on Empress II was clear, on In-Ceram Alumina was less clear, and on In-Ceram Zirconium was void.
Yiwang Bao, Li Tian and Jianghong Gong
R. J. Lu et al., "Influence of Background Material on 3 Veneered All-Ceramic Core Materials", Advanced Materials Research, Vol. 177, pp. 293-297, 2011