Analysis of color differences between identical tooth shades obtained by a spectrophotometer.

Abstract

the teeth shades and L*a*b* values were tabulated in excel according to the Vita 3D Master ® shade guide nomenclature. Data was tabulated in number of teeth with a determined tooth shade, ΔE minimum and maximum, ΔE mean value for each shade and standard deviation, number of teeth within the ΔE ranges of the PT and the AT according to Paravina et al (17) and according to Khaskayar et al (13). See tables and graphics. Graph 2: ΔE minimum and maximum, ΔE mean value, ΔE ranges of the PT and the AT for Vita 3D Master Shade L; AT1: AT corresponding to Paravina et al (17) , AT2: AT corresponding to Khaskayar et al (13) , PT1: PT corresponding to Paravina et al (17) , PT2: PT corresponding to Khaskayar et al (13) Table 1: Results of Vita 3D Master Shade SD (standard deviation). Column 1:ΔE lower than PT determined by Paravina et al (17) ; Column 2 :ΔE in between PT and AT determined by Paravina et al (17) ; Column 3:ΔE higher than AT determined by Paravina et al (17) ; Column 4:ΔE lower than AT determined by Khaskayar et al (13) ; Column 5:ΔE ranges in between PT and AT determined by Khaskayar et al (13) ; Column 6: ΔE values higher than AT determined Khaskayar et al (13). Table 2: Results of Vita 3D Master Shade M SD (standard deviation). Column 1:ΔE lower than PT determined by Paravina et al (17) ; Column 2 :ΔE ranges in between PT and AT determined by Paravina et al (17) ; Column 3:ΔE higher than AT determined by Paravina et al (17) ; Column 4:ΔE lower than AT determined by Khaskayar et al (13) ; Column 5: ΔE ranges in between PT and AT determined by Khaskayar et al (13) ; Column 6: ΔE values higher than AT determined Khaskayar et al (13) Table 3: Results of Vita 3D Master Shade R SD (standard deviation). Column 1: ΔE lower than PT determined by Paravina et al (17) ; Column 2 :ΔE ranges in between PT and AT determined by Paravina et al (17) ; Column 3:ΔE higher than AT determined by Paravina et al (17) ; Column 4:ΔE lower than AT determined by Khaskayar et al (13) ; Column 5: ΔE ranges in between PT and AT determined by Khaskayar et al (13) ; Column 6: ΔE values higher than AT determined Khaskayar et al (13)