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KMID : 1023420090090020189
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Journal of Dental Hygiene Science
2009 Volume.9 No. 2 p.189 ~ p.195
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Photopolymerization Efficiency of Bis-GMA Dental Resin Composites with New Photosensitizers
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Sun Gem-Ju
Jung Jong-Hyun
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Abstract
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Two diketones, 1,2-phenylpropanedione (PD) and diacetyl (DA) were investigated as new visible light photosensitizers for dental composite resin of bis-GMA in order to improve the photopolymerization effect. The photopolymerization efficiency of bis-GMA composite resin containing PD and DA was studied by IR absorption spectroscopy. And the results were compared with that of camphorquinone (CQ). Relative photopolymerization efficiency of the photosensitizers increased in the order of DA < CQ < PD. Thus, PD is a new visible light photosensitizer for dental composite resin with higher photopolymerization efficiency than that of CQ.
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KEYWORD
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Bis-GMA, Dental composites resin, Photopolymerization efficiency, photosensitizers, 1, 2-phenylpropanedione
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