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Changes of Color and Fluorescence of Resin Composites Immersed in Beer
Author(s) -
Antonov Milica,
Lenhardt Lea,
Manojlović Dragica,
Milićević Bojana,
Zeković Ivana,
Dramićanin Miroslav D.
Publication year - 2016
Publication title -
journal of esthetic and restorative dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.919
H-Index - 60
eISSN - 1708-8240
pISSN - 1496-4155
DOI - 10.1111/jerd.12232
Subject(s) - distilled water , composite material , materials science , composite number , immersion (mathematics) , bleach , fluorescence , resin composite , dental composite , dentistry , chemistry , optics , chromatography , mathematics , medicine , physics , organic chemistry , pure mathematics
Objective The aim of this study was to evaluate changes of color and fluorescence of resin based composite exposed to beer. Materials and Methods 84 samples (13 mm in diameter and 1.5 mm thick) of microhybrid composite Gradia Direct TM extra bleach white were immersed in 5 different beers (dark and light) or distilled water. Color and fluorescence were measured prior and after 1‐, 7‐, and 14‐day immersion by Spectrophotometer Thermo Evolution 600 and Fluorolog‐3‐221 spectrofluorometer. Results Resin based composites changed color after immersion in beers of different types. Beers with higher optical absorption induced greater color changes. The fluorescence intensity of composites was decreased after immersion in beer, but the shape of fluorescence spectra was not changed. 14‐day immersion in Bernard dark beer caused the greatest changes in optical properties of composite: Δ E *=9.0 and 57.6% reduced fluorescence. Conclusion Dark and light beers changed optical properties of resin based composite. The color change come exclusively from the change of chroma. Clinical Significance To fully meet esthetic criteria when using dental materials in restoration it is crucial to match optical properties of teeth and dental restoration at the moment of placement, but also to keep the match over the time. Considering that staining in beer causes changes in color and fluorescence of composites and that discoloration is a frequent reason for replacement of composite restorations, the data and conclusions on discoloration of dental restorations caused by beer consumption should aid dental professionals when reaching for high esthetics of modern dentistry.(J Esthet Restor Dent 28:330–338, 2016)