Color variation of composite resins in relation to the Vita Classical shade guide: colorimetric analysis
Braz. j. oral sci
; 23: e240869, 2024. ilus
Article
in English
| LILACS, BBO - Dentistry
| ID: biblio-1537143
Responsible library:
BR218.1
ABSTRACT
Aim:
The aim of this study was to verify the color variation between different composite resins and the Vita Classical Shade Guide.Methods:
Two-millimeter thickness samples were made (n = 6) from eight commercial brands of composite resin (shade A2) Charisma (Kulzer), Forma (Ultradent), Harmonize (Kerr), Luna (SDI), Opallis (FGM), Oppus Bulk Fill (FGM), Vittra (FGM) and Filtek Z250 XT (3M ESPE). Specimens were stored in distilled water for 7 days and then polished. Color measurements of samples and A2 shade of the Vita Classical Shade Guide were performed using the Vita Easy Shade Advance 4.0 spectrophotometer on a black background. Color variations were calculated using the CIEDE2000 formula, considering values ≥0.81 being noticeable by the human eye and ≥1.77 being clinically unacceptable. Results were statistically analyzed with a 5% significance level.Results:
Color variation (ΔE) of composite (E1 ) compared to the Vita Classical Shade Guide (E0 ) was greater than clinically acceptable for all the materials evaluated in this study. Forma (ΔE=2.08 ± sd=0.47) and Filtek Z250 XT (2.50 ± 0.20) had the smallest amount of color variation values found in the results. Harmonize (3.32 ± 0.63) presented values similar to Filtek Z250 XT, but it was worse than Forma. Vittra (3.51 ± 0.28), Charisma (3.80 ± 0.20), Opallis (4.24 ± 0.30) and Luna (5.67 ± 0.20) did not differ among each other and presented higher color variation than Forma, Filtek Z350XT and Harmonize. Oppus Bulk Fill (13.94 ± 1.12) was the composite with the greatest color variation.Conclusions:
The findings in this study show that attention should be taken when using the Vita Color Shade Guide for composite shade selectionSubject(s)
Full text:
Available
Collection:
International databases
Database:
BBO - Dentistry
/
LILACS
Main subject:
Spectrophotometry
/
Distilled Water
/
Color
/
Composite Resins
Language:
English
Journal:
Braz. j. oral sci
Journal subject:
Dentistry
Year:
2024
Document type:
Article
Affiliation country:
Brazil
/
United States
Institution/Affiliation country:
Feevale University/BR
/
Lutheran University of Brazil/BR
/
University of Maryland/US