Luminescence of selected dental composites in vitro

Abstract Objectives The work was motivated by the necessity to evaluate the emission changes of dental composites, as the emission under UV light is one of the important optical parameters of the hard tooth tissue. Methods Fulfill extra, Artemis and Durafill VS materials in A3.5 shade were tested. C...

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Published inDental materials Vol. 24; no. 10; pp. 1329 - 1335
Main Authors Mazur-Koczorowska, Anna, Sikorska, Ewa, Krawczyk, Alina, Khmelinskii, Igor, Sikorski, Marek, Koczorowski, Ryszard, Stopa, Janina
Format Journal Article
LanguageEnglish
Published England Elsevier Ltd 01.10.2008
Subjects
Adsorption
Advanced Basic Science
Bisphenol A-Glycidyl Methacrylate - chemistry
Coffee
Color
Color difference values
Color parameters
Colorimetry
Composite Resins - chemistry
Dental composites
Dental Materials - chemistry
Dentistry
Humans
Luminescence
Materials Testing
Polyurethanes - chemistry
Reflectance spectra
Spectrum Analysis
Tea
Total luminescence matrices
Ultraviolet Rays
Water - chemistry
Wine
Total luminescence matrices
Color difference values
Reflectance spectra
Color parameters
Dental composites
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Summary:Abstract Objectives The work was motivated by the necessity to evaluate the emission changes of dental composites, as the emission under UV light is one of the important optical parameters of the hard tooth tissue. Methods Fulfill extra, Artemis and Durafill VS materials in A3.5 shade were tested. Coffee, tea, red wine and distilled water (blank) were used as staining drinks. The samples were soaked for 7 days. Total luminescence matrices were collected with an interval of 1 nm in emission and 10 nm in excitation, in the front-face geometry. Results The exposure of dental composites to staining drinks caused a reduction in luminescence intensity by up to 40%, the magnitude of the reduction depending on the drink and on the composite material. In the special case of the intrinsically weak fluorescent Durafill VS, the exposure to coffee apparently caused an increase in luminescence intensity due to coffee components adsorbed on the sample surface. Significance It is important to improve the emission stability of dental composites. The presently proposed methods are effective in evaluating the emission of dental composites. Emission needs to be tested in addition to color, as the two parameters are uncorrelated.
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ISSN:0109-5641
1879-0097
DOI:10.1016/j.dental.2008.02.014