Effect of PMMA polymer on the dynamic viscoelasticity and plasticizer leachability of PEMA-based tissue conditioners
Dental Materials Journal 29 巻 4 号
374-380 頁
2010-08-07 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Effect of PMMA polymer on the dynamic viscoelasticity and plasticizer leachability of PEMA-based tissue conditioners
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| 作成者 |
Hong Guang
Maeda Takeshi
Li YingAi
Sadamori Shinsuke
Hamada Taizo
Murata Hiroshi
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| 収録物名 |
Dental Materials Journal
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| 巻 | 29 |
| 号 | 4 |
| 開始ページ | 374 |
| 終了ページ | 380 |
| 抄録 |
The purpose of this study was to determine the effect of PMMA polymer on dynamic viscoelasticity and plasticizer leachability of PEMA-based tissue conditioners. One PEMA polymer and one PMMA polymer were used in powder form with four formulations. The combination of 80 wt% ATBC, 15 wt% BPBG and 5 wt% ethyl alcohol was used as the liquid phase. The dynamic viscoelasticity and plasticizer leaching of each specimen were measured after 0, 1, 3, 7, and 14 days of immersion (37 degrees C distilled water) using DMA and HPLC. A significant difference was found among the materials in the dynamic viscoelasticity and leaching of plasticizer. The materials containing 10 wt% PMMA showed the most stable dynamic viscoelasticity, and showed the lowest leaching of plasticizer. The results suggest that the addition of the PMMA polymer to the powder of a tissue conditioner can improve the durability of the PEMA-based tissue conditioner.
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| 著者キーワード |
Dynamic viscoelasticity
Tissue conditioner
HPLC
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| NDC分類 |
医学 [ 490 ]
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
日本歯科理工学会
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| 発行日 | 2010-08-07 |
| 権利情報 |
Copyright (c) 2010 The Japanese Society for Dental Materials and Devices
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 0287-4547
[DOI] 10.4012/dmj.2009-134
[NCID] AA10443149
[DOI] http://dx.doi.org/10.4012/dmj.2009-134
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