Research Papers: General

Correlation between three color coordinates of human teeth

[+] Author Affiliations
Yong-Keun Lee

Institute for Clinical Performance of Biomaterials (ICPB) and ETN Dental Clinic, 106-B101, 27 Heukseokhangang-ro, Dongjak-gu, Seoul 156-070, Republic of Korea

J. Biomed. Opt. 19(11), 115006 (Nov 25, 2014). doi:10.1117/1.JBO.19.11.115006
History: Received September 3, 2014; Accepted October 30, 2014
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Abstract.  The objective was to determine whether there were significant correlations in the three color coordinates within each of two color coordinate systems, such as the Commission Internationale de l’Eclairage (CIE) L*a*b* system, and the lightness, chroma, and hue angle system, of human vital teeth. The color of six maxillary and six mandibular anterior teeth was measured by the Shade Vision System. Pearson correlations between each pair of the color coordinates were determined (α=0.01). The influence of two color coordinates on the other color coordinate was determined with a multiple regression analysis (α=0.01). Based on correlation analyses, all the color coordinate pairs showed significant correlations except for the chroma and hue angle pair. The CIE L* was negatively correlated with the CIE a*, b*, and chroma, but positively correlated with the hue angle. The CIE a* was positively correlated with the CIE b* and chroma. Tooth color coordinates were correlated each other. Lighter teeth were less chromatic both in the CIE a* and b* coordinates. Therefore, it was postulated that the three color coordinates of human teeth were harmonized within certain color attribute ranges, and a lack of correlations in these coordinates might indicate external/internal discolorations and/or anomalies of teeth.

Figures in this Article
© 2014 Society of Photo-Optical Instrumentation Engineers

Topics

Teeth

Citation

Yong-Keun Lee
"Correlation between three color coordinates of human teeth", J. Biomed. Opt. 19(11), 115006 (Nov 25, 2014). ; http://dx.doi.org/10.1117/1.JBO.19.11.115006


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