Perceptibility and Acceptability Thresholds for Color Differences in Ceramic Shade Tabs: A Comparison Between Dentists and Patients

作者：Vanessa Schussler, Daniel Yuydi Kawakami, Mateus Garcia Rocha, Mário Alexandre Coelho Sinhoreti, Mateus Garcia Rocha, Dayane Carvalho Ramos Salles de Oliveira · 发表于：Journal of Clinical and Experimental Dentistry · 年份：2024 · DOI：10.4317/jced.62287 · 被引用次数：10 · 研究领域：Dental materials and restorations、Dental Erosion and Treatment、Orthodontics and Dentofacial Orthopedics

Background: The aim of this study was to evaluate the 50%:50% perceptibility thresholds (PT) and acceptability thresholds (AT) for color differences in ceramic shade tabs observed by dentists and patients using CIEDE2000 color difference formula. Material and Methods: Twenty-two combinations of ceramic shade tabs from the VITA 3D Master shade guide were assembled to be used for the visual comparison analyses. The color difference between each shade tab pair was numerically determined by spectrophotometry using the VITA EasyShade V, and calculated using the CIEDE2000 formula (ΔE00). Twenty dentists and twenty patients were recruited for this study. All participants performed the visual assessment of the provided shade tab pairs under D65 illumination and a grey background, and requested to determine if they could perceive a color difference between them (PT) and whether they considered the combination clinically acceptable (AT). The correlation between numeric data of color difference between the shade tabs, and the perceptibility and acceptability thresholds given by the participants was analyzed by logistic regression (α=0.05; β=0.0085). Results: =0.54) between patients and dentists. Conclusions: Color difference, esthetic, aesthetic, spectrophotometry, CIEDE2000.