Investigation of the function of the glass colorant on the machinable infiltrated ceramics color / 华西口腔医学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To investigae the function of the glass colorant on the color of the machinable infiltrated ceramics(MIC).</p><p><b>METHODS</b>Five kinds of glass with different colorant were infiltrated through the aluminous matrix by heating the components to 1 100 degrees C for 2 hours. The specimens surface was polished, and their thickness was 0.5 mm.</p><p><b>RESULTS</b>The refractive index of the MIC infiltration glass was 1.59691 (587.6 nm, nd) . The most different parameter of the MIC color were L*, then a*, and b* had little difference . The parameters of the color space of MIC were L*(64.55-71.46), a*(3.35-7.38), b*(10.00-12.41), Ca*b*(11.38-13.95), ha*b*(54.07-73.00). These were almost close to the color parameters of Vita In-ceram.</p><p><b>CONCLUSION</b>This experiment proved that the glass colorant was changed the MIC color parameters, and the main function was on L*, then a*. The ceramic color was up to the requirement of clinic.</p>