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A Study on Possibility of Clinical Application for Color Measurements of Shade Guides Using an Intraoral Digital Scanner

Title
A Study on Possibility of Clinical Application for Color Measurements of Shade Guides Using an Intraoral Digital Scanner
Authors
Yoon H.-I.Bae J.-W.Park J.-M.Chun Y.-S.Kim M.-A.Kim M.
Ewha Authors
전윤식김민지윤형인
SCOPUS Author ID
전윤식scopus; 김민지scopus; 윤형인scopus
Issue Date
2016
Journal Title
Journal of Prosthodontics
ISSN
1059-941XJCR Link
Keywords
Color measurementColorimeterDigital intraoral scannerShade selection
Publisher
Blackwell Publishing Inc.
Indexed
SCIE; SCOPUS scopus
Abstract
Purpose: To assess if color measurement with intraoral scanner correlates with digital colorimeter and to evaluate the possibility of application of a digital scanner for shade selection. Materials and Methods: The L*a*b* values of the five shade tabs (A1, A2, A3, A3.5, and A4) were obtained with an intraoral scanner (TRIOS Pod) and a colorimeter (ShadeEye). Both devices were calibrated according to the manufacturer's instructions before measurements. Color measurement values were compared with paired t-test, and a Pearson's correlation analysis was performed to evaluate the relationship of two methods. Results: The L*a*b* values of the colorimeter were significantly different from those of the digital scanner (p < 0.001). The L* and b* values of both methods were strongly correlated with each other (both p < 0.05). The device repeatability in both methods were reported to be excellent (p < 0.05). Within the limitations of this study, color measurements with digital intraoral scanners and computer-assisted image analysis were in accordance with those of the colorimeter with respect to L* and b* values; however, all the coordinates of shade tabs were significantly different between two methods. Conclusions: The digital intraoral scanner may not be used as the primary method of color selection in clinical practices, considering significant differences in color parameters with colorimeter. The scanner's capability in shade selection should be further evaluated. © 2016 American College of Prosthodontists.
DOI
10.1111/jopr.12559
Appears in Collections:
의과대학 > 의학과 > Journal papers
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