Range of color parameters in maxillary central incisors versus three different shade guides

Zarkova-Atanasova, Julija and Zlatanovska, Katerina and Kocovski, Darko and Naskova, Sanja and Dimova, Cena (2017) Range of color parameters in maxillary central incisors versus three different shade guides. In: 22nd Bass Congress, Contemporary Challenges in Dentistry, 4-6 May 2017, Thessaloniki, Greece.

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Abstract

Background: Proper evaluation and analysis of color distribution of shade guides is important to achieve clinically acceptable color matches in everyday dentistry. Therefore, the aim of our study was to determinate the color of natural teeth in selected population group and compare it with the color distribution of three different commercially available shade guides. Methods and materials: The color of maxillary central incisors (n=235) was measured us middle third of the labial surface in patients from age range 18-69 years. Color values of natural teeth and shade tabs from the shade guides Vita Classical, Ivoclar chromascop and Vita3D Master were recorded according to CIE Lab color space. Descriptive statistic and ttest were used to determine whether the color differences seen in the samples were statistically different. Results: The range of values for the parameters of the natural tooth color were for L*60.04-81.21 for a* 0.88- 8.54, b* 10.37-26.26. All attributes of the maxillary central incisor displayed a broader range than those from the shade guides. The 1-sample t test revealed a significant difference (P<.001) between means of color ranges for all values. and in order to select the best match for a restoration we need to make compromise for finding the lowest color difference. Beside the subjectivity of the visual methods in color determination in dentistry mismatches also can originate from the selected shade guide.

Item Type: Conference or Workshop Item (Poster)
Subjects: Medical and Health Sciences > Clinical medicine
Divisions: Faculty of Medical Science
Depositing User: Katerina Zlatanovska
Date Deposited: 12 Sep 2017 09:57
Last Modified: 12 Sep 2017 09:57
URI: http://eprints.ugd.edu.mk/id/eprint/18034

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