2010年5月
Mechanical properties of a resin-modified glass ionomer cement for luting: effect of adding spherical silica filler.
Dental materials journal
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- ,
- ,
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- 巻
- 29
- 号
- 3
- 開始ページ
- 253
- 終了ページ
- 61
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.4012/dmj.2009-092
- 出版者・発行元
- JAPANESE SOC DENTAL MATERIALS DEVICES
This study investigated the effects of spherical silica filler (SSF) on the workability and mechanical properties of resin-modified glass ionomer cements for luting (RMGICL). Varying powder/liquid ratios (P/L=2.0, 2.2, 2.4, and 2.6) of a commercially available glass ionomer cement (Fuji Lute, GC Corp.) were mixed with SSF at different weight percentages (5, 7.5, and 10%). On film thickness, statistically significant effects of SSF addition were noted at 2.5 minutes after mixing started, notably at P/L=2.4 and 2.6 when 7.5 and 10 wt% of SSF were added. The same result was also obtained for consistency evaluation. On mechanical and bonding strengths to the tooth substrate, no statistically significant differences were observed among all the SSF weight percentages within each P/L ratio. SSF-added RMGICL, at a higher powder/liquid ratio exhibited increased mechanical and bonding strengths when compared to a control without SSF addition, but nonetheless maintained the film thickness with no further increase.
- リンク情報
- ID情報
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- DOI : 10.4012/dmj.2009-092
- ISSN : 0287-4547
- PubMed ID : 20484829
- Web of Science ID : WOS:000280266700003