FT-Raman spectroscopy study of organic matrix degradation in nanofilled resin composite.
In: Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada, Jg. 19 (2013-04-01), Heft 2, S. 327-34
Online
academicJournal
Zugriff:
This in vitro study evaluated the effect of light curing unit (LCU) type, mouthwashes, and soft drink on chemical degradation of a nanofilled resin composite. Samples (80) were divided into eight groups: halogen LCU, HS--saliva (control); HPT--Pepsi Twist®; HLC--Listerine®; HCP--Colgate Plax®; LED LCU, LS--saliva (control); LPT--Pepsi Twist®; LLC--Listerine®; LCP--Colgate Plax®. The degree of conversion analysis and the measure of the peak area at 2,930 cm-1 (organic matrix) of resin composite were done by Fourier-transform Raman spectroscopy (baseline, after 7 and 14 days). The data were subjected to multifactor analysis of variance (ANOVA) at a 95% confidence followed by Tukey's HSD post-hoc test. The DC ranged from 58.0% (Halogen) to 59.3% (LED) without significance. Differences in the peak area between LCUs were found after 7 days of storage in S and PT. A marked increase in the peak intensity of HLC and LLC groups was found. The soft-start light-activation may influence the chemical degradation of organic matrix in resin composite. Ethanol contained in Listerine® Cool Mint mouthwash had the most significant degradation effect. Raman spectroscopy is shown to be a useful tool to investigate resin composite degradation.
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FT-Raman spectroscopy study of organic matrix degradation in nanofilled resin composite.
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Autor/in / Beteiligte Person: | Soares, LE ; Nahórny, S ; Martin, AA |
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Zeitschrift: | Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada, Jg. 19 (2013-04-01), Heft 2, S. 327-34 |
Veröffentlichung: | 2023- : [Oxford] : Oxford University Press ; <i>Original Publication</i>: New York, N.Y. : Springer-Verlag New York, 1997-, 2013 |
Medientyp: | academicJournal |
ISSN: | 1435-8115 (electronic) |
DOI: | 10.1017/S1431927612014225 |
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