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KMID : 1035320170440010011
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Korean Society for Dental Materials
2017 Volume.44 No. 1 p.11 ~ p.20
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Comparison of physical properties between paste type mineral trioxide aggregates (MTA) and powder-liquid mix type MT
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Kwon Young-Dae
Seok Soo-Hwang
Lee Sang-Hyeok
Lim Bum-Soon
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Abstract
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The aim of this study was to compare the physical properties of the paste type MTAs with the powder-liquid mix type MTAs. The MTAs evaluated were 4 kinds of powder-liquid mix type and 2 kinds of paste type. Physical properties, such as, flow, film thickness, setting time, solubility, and radiopacity were evaluated in accordance with ISO 6876:2012. Experimental results were analysed using the Tukey multiple comparison test (p=0.05). Paste type MTAs showed higher flow and lower film thickness than powder-liquid mix type MTAs. The setting time of paste type MTAs was significantly shorter than for the powder-liquid mix type MTAs (p<0.05). Paste type MTAs showed similar solubility and radiopacity to powder-liquid mix type MTAs. Based on the results of this study, paste type MTA can be used as substitute for the conventional powder-liquid mix type MTA.
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KEYWORD
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mineral trioxide aggregates, paste type, powder-liquid mix type, setting time , physical properties
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