Development of Metal-Resin Composite Restorative Material : Part 2 Effects of acid and heat treatments of silver-tin filler particles on flexural properties of metal-resin composite
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概要
- 論文の詳細を見る
The effects of acid and heat treatments of silver-tin filler particles on the flexural properties of metal-resin composite restorative materials were investigated. Five metal-resin composite restorative materials containing different silver-tin filler particles treated under different conditions were experimentally prepared. The conditions of the alloy particles were; 1) as atomized (NT), 2) 1.8% HCI acid-treated (AT), 3) heat-treated at 150℃ for 5 min after AT (A15), 4) heat-treated at 200℃ for 5 min after AT (A20) and 5) heat-treated at 250℃ for 5 min after AT (A25). The flexural strength and the flexural modulus of elasticity were measured for the five metal-resin composites to evaluate the effects of the acid and heat treatments. The flexural strength of the prepared composites was significantly influenced by the surface condition of the filter particles (p<0.01), and increased significantly when the as atomized particles (NT) were acid-treated (AT) or acid- and heat-treated at 150℃ (A15), but then significantly decreased as the heat treatment temperature increased (A20 and A25). The strength of the A15 composite was significantly higher than those of the other composites, and exceeded that (about 60 MPa) of the previous composite with no treatment. No significant difference was found in the flexural modulus of the composites.
- 日本歯科理工学会の論文
著者
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Ogura Hideo
Department Of Dental Materials Science
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Miyagawa Y
Advanced Research Center School Of Life Dentistry At Niigata The Nippon Dental University
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Urapepon Somchai
Prosthodontics Department Faculty Of Dentistry Mahidol University
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Urapepon Somchai
Department Of Dental Materials Science School Of Dentistry At Niigata The Nippon Dental Univ. Japan
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Kakuta Kiyoshi
Department Of Dental Materials Science School Of Dentistry At Niigata The Nippon Dental University
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Rittapai Apiwat
Faculty Of Dentistry Mahidol University
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MIYAGAWA Yukio
Department of Dental Materials Science, School of Dentistry at Niigata, The Nippon Dental University
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Kakuta Kiyoshi
Nippon Dental Univ. Niigata Jpn
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SUCHATLAMPONG Chatcharee
Faculty of Dentistry, Mahidol University
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Suchatlampong Chatcharee
Faculty Of Dentistry Mahidol University
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MIYAGAWA Yukio
Advanced Research Center, School of Life Dentistry at Niigata, The Nippon Dental University
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