caa a22 4500 378903004 CHVBK 20180305123522.0 cr unu---uuuuu 161128e20041201xx s 000 0 eng 10.1515/epoly.2004.4.1.793 doi (NATIONALLICENCE)gruyter-10.1515/epoly.2004.4.1.793 A study of aging in dental composites using IR and Raman spectroscopy [Elektronische Daten] [Fotini Pallikari, Soultana Iosifidou] The application of dental restorative composites has opened wide possibilities in modern dentistry. The dental pastes studied in this work consist of a dimethacrylate-based matrix to which silica or ceramic fillers are added to improve their mechanical properties, colour stability and aesthetic appearance. The pastes were cured through free-radical polymerisation with visible light and were subjected to accelerated aging in the laboratory. The degree of monomer conversion with photo-curing, studied with FTIR and FT-Raman spectroscopy, was 42 ± 2% on average, which further advanced after aging to 56 ± 4%. The samples exhibited fluorescence at various intensities, which declined by the curing and aging procedures by a maximum of c. 20%, depending on the type of fillers present. © 2013 by Walter de Gruyter GmbH & Co. Pallikari Fotini University of Athens, Faculty of Physics, Department of Solid State Physics, Panepistimioupoli Zografou, 15784 Athens, Greece; Fax +30210-7276823 aut Iosifidou Soultana University of Athens, Faculty of Physics, Department of Solid State Physics, Panepistimioupoli Zografou, 15784 Athens, Greece; Fax +30210-7276823 aut e-Polymers De Gruyter 4/1(2004-12-01), 793-802 2197-4586 4:1<793 2004 4 epoly https://doi.org/10.1515/epoly.2004.4.1.793 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/epoly.2004.4.1.793 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pallikari Fotini University of Athens, Faculty of Physics, Department of Solid State Physics, Panepistimioupoli Zografou, 15784 Athens, Greece; Fax +30210-7276823 aut NATIONALLICENCE 700 1- Iosifidou Soultana University of Athens, Faculty of Physics, Department of Solid State Physics, Panepistimioupoli Zografou, 15784 Athens, Greece; Fax +30210-7276823 aut NATIONALLICENCE 773 0- e-Polymers De Gruyter 4/1(2004-12-01), 793-802 2197-4586 4:1<793 2004 4 epoly CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter