Influence of a new denture cleaning technique based on photolysis of H2O2 the mechanical properties and color change of acrylic denture base resin
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概要
- 論文の詳細を見る
The purpose of this study was to evaluate the influence of a disinfection technique based on photolysis of H2O2 on the mechanical properties and color change of acrylic denture base resin. Resin specimens were immersed in 1 M H2O2 irradiated with light-emitting diode (LED) light at 400 nm for 1 week. The immersion duration of 1 week (168 h) corresponded to performing approximately 500 times of 20-min cleaning. Hydroxyl radicals are potent oxidants and they were generated via the photolysis of H2O2. Oxidative damage caused by these radicals included reduced flexural strength and altered color for the acrylic resin. Nonetheless, the degraded flexural strength and altered color of acrylic resin after 500 times of cleaning in the disinfection system would be within clinically acceptable levels.
著者
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Kanno Taro
Division Of Fixed Prosthodontics Department Of Restorative Dentistry Tohoku University Graduate Scho
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Inagaki Ryoichi
Division Of Fixed Prosthodontics Department Of Restorative Dentistry Tohoku University Graduate Scho
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NIWANO YOSHIMI
Laboratory for Redox Regulation, Tohoku University Graduate School of Dentistry
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Sasaki Keiichi
Division Of Advanced Prosthetic Dentistry Graduate School Of Dentistry Tohoku University
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YAMADA Yasutomo
Division of Fixed Prosthodontics, Tohoku University Graduate School of Dentistry
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NAKAMURA Keisuke
Laboratory for Redox Regulation, Tohoku University Graduate School of Dentistry
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NAKAHARA Tatsuro
Division of Fixed Prosthodontics, Tohoku University Graduate School of Dentistry
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HARADA Akio
Division of Fixed Prosthodontics, Tohoku University Graduate School of Dentistry
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ODASHIMA Yu
Division of Fixed Prosthodontics, Tohoku University Graduate School of Dentistry
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