Color Difference Between the Vita Classical Shade Guide and a Nanofilled Resin-based Composite Using the Dual Layer Technique Bryce Brandfon and Nathalie Sawczuk Authors: Bryce Brandfon, Francielle Floriani, Mateus Rocha, Dayane Oliveira Faculty Mentor: Dayane Oliveira, PhD College: College of Dentistry Department: DN-Operative Division |
|
AbstractObjectives: The aim of this study was to evaluate the CIEDE2000 color difference between the Vita Classical shade guide and a nanofilled resin-based composite using the dual layer technique.
Materials and Methods: Composite veneers of a nanofilled composite (Filtek Supreme Ultra, 3M) were made by layering the enamel (EA1, EA2, EA3) and body (BA1, BA2, BA3) or dentin shades (DA1, DA2, DA3, DA4) together (n=3). The color measurements were taken using a spectrophotometer (Easyshade V®, Vita Zahnfabrik). A Vita shade guide (Easyshade V®, Vita Zahnfabrik) was used as a gold standard for each shade. The color difference between the composite veneers and the Vita shade guide shades was calculated using the CIEDE2000 formula.
Results: The results show that for the A1 shade, the best match would be layering either EA1 with DA2 or DA3; or EA2 with DA1 or DA2 (ΔE00= 1.53 ~ 1.96 ± 0.4). For the A2 shade, EA2 with DA1 or DA3; or EA3 with DA1, DA2 or DA3 (ΔE00= 1.40 ~ 2.08 ± 0.4). There was not an acceptable color match for the A3 shade.
Conclusions: The layering of enamel and dentin Filtek Supreme Ultra composite shades were not able provide color match for all Vita shade guide standard shades.
|
|
Poster
|
|
