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KMID : 0362120160380030193
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Journal of Technologic Dentistry
2016 Volume.38 No. 3 p.193 ~ p.199
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The degree of conversion of dual-cured resin cement as a function of transmittance and thickness
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Noh Hyeong-Rok
Joo Kyu-Ji
Sun Gum-Ju
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Abstract
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Purpose: The purpose of this study was to know of photopolymerization effect of self-etch dual-cured resin cement on different transmittance and thickness of zirconia disks.
Methods: The two types of transparent and opaque zirconia speciments were prepared. The five speciments of each groups were seperated with 0.5㎜ and 1.0mm thickness. Degree of conversion(DC) were studied by FT-IR spectroscopy using ATR method before and after irradidaion for 40 sec.
Results: The relative DC was showed the higher results of ZS5 as compared with ZS10 (p < 0.05). And OP5 and OP10 were lower results than ZS10 (p < 0.05).
Conclusion: The photopolymerization effect of dual-cured resin cement were affected by the transmittance and thickness of zirconia.
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KEYWORD
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degree of conversion, zirconia, self-etch dual-cured cement, FT-IR
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