【摘 要】
：
Purpose: To introduce a new indicator to the Colorimetric system so as to provide experimental basis and to simulate natural dentin color much better,we ana
【机 构】
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Department of Stomatology,Changhai Hospital,Second Military Medical University,Shanghai
【出 处】
：
2014xi`an Conference of International Society for Maxillofac
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Purpose: To introduce a new indicator to the Colorimetric system so as to provide experimental basis and to simulate natural dentin color much better,we analyze the relationship among zirconia dental ceramic materials and light transmittance of L*,a*,b* and thickness.Methods: Using X-rite color i7 spectrophotometer,three brands(Lava,Upcera,Doceram)zirconia ceramic transmittance and reflectance(L*,a*,b*)were measured of different colors,different thickness(0.9mm,0.6mm,0.3mm),the results were analyzed by using SPSS18.0 software,t[1]o investigate the linear transmittance between the thickness and the color value.
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