title: Comparing L*a*b* color coordinates for natural teeth shades and corresponding shade tabs using a spectrophotometer.
abstract: It was investigated whether L*a*b* values for teeth as well as shade tabs for one 3D-Master shade were similar to one another. Teeth were measured using Vita Easyshade and L*a*b* values and the closest 3D shade was then recorded. The shade-guide tabs were also measured using the same device. 3D-Master shades yielded different L*a*b* values for the teeth than for the tabs. L* and a* values, especially, were systematically different. Therefore, Easyshade L*a*b* values for teeth and tabs could not be directly compared.
authors.affiliation: Department of Prosthodontics, University of Heidelberg, INF 400, 69120 Heidelberg, Germany. alexander.hassel@med.uni-heidelberg.de
authors.forename: Alexander J
authors.initials: AJ
authors.lastname: Hassel
authors.forename: Priv
authors.initials: P
authors.lastname: Doz
authors.forename: Ina
authors.initials: I
authors.lastname: Nitschke
authors.forename: Peter
authors.initials: P
authors.lastname: Rammelsberg
mesh_terms: D000368:Aged; D003116:Color / Q000592:standards*; D003124:Colorimetry; D006801:Humans; D021621:Imaging, Three-Dimensional; D008875:Middle Aged; D013053:Spectrophotometry; D014070:Tooth / Q000033:anatomy & histology*; D014796:Visual Perception