Release of TEGDMA from composite during the chewing situation
| Autor: | Johannes Zaspel, Reinhard Hickel, Karl-Heinz Kunzelmann, B. Glasl, Franz-Xaver Reichl, Jürgen Durner |
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| Rok vydání: | 2009 |
| Předmět: |
Dental composite
Dental Stress Analysis Materials science Kinetics Composite number Materials testing Composite Resins Polyethylene Glycols chemistry.chemical_compound Polymethacrylic Acids Materials Testing Humans General Materials Science Carbon Radioisotopes Composite material General Dentistry Mastication Triethylene glycol Light-Curing of Dental Adhesives Chromatography Elution digestive oral and skin physiology chemistry Mechanics of Materials |
| Zdroj: | Dental materials : official publication of the Academy of Dental Materials. 26(7) |
| ISSN: | 1879-0097 |
| Popis: | The aim of this study was to investigate the triethylene glycol (TEGDMA) elution kinetics from light-cured composite with and without chewing simulation over a time period of 86 h. An experimental composite with TEGDMA labeled with a tracer dose of 14C-TEGDMA was used. The material parameters were in the range of commercially available composites. The mastification was simulated with the Fatigue-machine and the MUC-3 chewing simulator. 14C was eluted to 2.55% of the applied 14C-TEGDMA dose within 86 h after chewing simulation with the Fatigue-machine and to 2.60% after chewing simulation with the MUC-3. Similar 14C-kinetic data were found for 14C-elution with and without chewing simulation with the Fatigue-machine and with MUC-3. During the first 26 h after the beginning of the experiments a linear 14C-elution kinetic was observed, followed by a second linear 14C-elution kinetic with a lower slope up to 86 h in both apparatus. It could be shown that chewing simulation has no significant (p |
| Databáze: | OpenAIRE |
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