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The dynamic viscoelasticity and water absorption characteristics of soft acrylic resin materials containing adipates and a maleate plasticizer
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- HONG Guang
- Liaison Center for Innovative Dentistry, Graduate School of Dentistry, Tohoku University
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- TSUKA Hiroki
- Department of Advanced Prosthodontics, Graduate School of Biomedical Sciences, Hiroshima University
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- MAEDA Takeshi
- Department of Removable Prosthodontics, Osaka Dental University
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- AKAGAWA Yasumasa
- Department of Advanced Prosthodontics, Graduate School of Biomedical Sciences, Hiroshima University
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- SASAKI Keiichi
- Division of Advanced Prosthetic Dentistry, Graduate School of Dentistry, Tohoku University
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Description
The purpose of this study was to investigate the use of different plasticizers in soft acrylic resin materials to reduce leaching of the plasticizer and thus increase the durability of tissue conditioners. Samples were prepared containing different combinations of three types of polymer/copolymer powder and four types of plasticizer liquid (DEHM, DIBA, DAA and DINA). The dynamic viscoelasticity of each sample was measured after water immersion using a dynamic mechanical analyzer. Water absorption, solubility and weight change were also measured. A significant difference was found among the materials regarding dynamic viscoelasticity, water absorption and solubility. The samples containing P-n-BMA had the most stable G’ and G’’ scores throughout the immersion. P-n-BMA is the most suitable powder together with DEHM as the most suitable liquid component for a tissue conditioner. These results suggest that it is possible to improve the durability of tissue conditioners by combining different polymers and plasticizers.
Journal
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- Dental Materials Journal
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Dental Materials Journal 31 (1), 139-149, 2012
The Japanese Society for Dental Materials and Devices
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Details 詳細情報について
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- CRID
- 1390001204715362432
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- NII Article ID
- 10030128563
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- NII Book ID
- AA10443149
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- ISSN
- 18811361
- 02874547
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- PubMed
- 22277618
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE
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- Abstract License Flag
- Disallowed
