DSpace JSPUI
DSpace preserves and enables easy and open access to all types of digital content including text, images, moving images, mpegs and data sets
Learn More
Please use this identifier to cite or link to this item:
https://repositorio.ufba.br/handle/ri/4800| metadata.dc.type: | Artigo de Periódico |
| Title: | Monomer conversion of composite dental resins photoactivated by a halogen lamp and a LED: a FT-Raman spectroscopy study |
| Other Titles: | Química Nova |
| Authors: | Soares, Luís Eduardo Silva Rocha, Rick Martin, Airton Abrahão Pinheiro, Antonio Luiz Barbosa Zampieri, Marcelo |
| metadata.dc.creator: | Soares, Luís Eduardo Silva Rocha, Rick Martin, Airton Abrahão Pinheiro, Antonio Luiz Barbosa Zampieri, Marcelo |
| Abstract: | Eighteen circular blocks of resins cured either by a LED or a halogen lamp (20, 40 and 60 s), had their top (T) and bottom (B) surfaces studied using a FT-Raman spectrometer. Systematic changes in the intensity of the methacrylate C=C stretching mode at 1638 cm-1 as a function of exposure duration were observed. The calculated degree of conversion (DC) ranged from 45.0% (B) to 52.0% (T) and from 49.0% (B) to 55.0% (T) for the LED and halogen lamp, respectively. LED and halogen light produced similar DC values with 40 and 60 s of irradiation. |
| Keywords: | Composites Degree of conversion FT-Raman spectroscopy |
| URI: | http://www.repositorio.ufba.br/ri/handle/ri/4800 |
| Issue Date: | 2005 |
| Appears in Collections: | Artigo Publicado em Periódico (Faculdade de Odontologia) |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.