Cure performance of light-activated composites by differential thermal analysis (DTA) |
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| Authors: | Dr.J.F. McCabe |
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| Affiliation: | Dental Materials Science Unit, University of Newcastle upon Tyne, Dental School, Newcastle upon Tyne, NE2 4BW, England |
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| Abstract: | ![]()
A technique which utilizes differential thermal analysis and a divided fibre optic system is a valuable aid to the study of the curing behaviour of lightactivated composites. Degree of cure and temperature rise can readily be evaluated as a function of irradiation time. Shade of material, thickness, sample temperature and the presence of porosity all have a significant effect on cure behaviour. The temperature rise for a 60 mm3 sample of material varies between 20°C and 40°C for the materials tested. |
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| Keywords: | composite resins thermal analysis irradiation curing degree of polymerization |
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