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Volume 22 , Issue 1
January/February 2009

Pages 7274

Comparing L*a*b* Color Coordinates for Natural Teeth Shades and Corresponding Shade Tabs Using a Spectrophotometer

Alexander J. Hassel, Priv Doz, Dr Med Dent Habil/Ina Nitschke, Priv Doz, Dr Med Dent Habil, MPH/Peter Rammelsberg, Prof Dr Med Dent Habil

PMID: 19260432

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. Int J Prosthodont 2009;22:7274.

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