1999年
Release and Recharge of Fluoride by Restorative Materials
Dental Materials Journal
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- 巻
- 18
- 号
- 4
- 開始ページ
- 347
- 終了ページ
- 353
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.4012/dmj.18.347
- 出版者・発行元
- Japanese Society for Dental Materials and Devices
This study investigated the release and recharge of fluoride by restorative materials. Resin-modified glass ionomers (RGIs), polyacid-modified composite resins (PMCRs) and resin composite containing fluoride were used for comparison of fluoride release. Non-fluoride-releasing resin composite was used as a control. The amounts of fluoride release from RGIs and PMCRs remarkably increased in the citrate-phosphate acid buffer compared with distilled water. The amounts of fluoride recharged in RGIs increased with the concentration of NaF solution, but those of PMCRs exposed to all concentrations of NaF solutions were less than 1.5 ppm. Neither resin composite containing fluoride and non-fluoride-releasing resin composite gave any evidence of recharge. RGIs and PMCRs affected by acid buffer solution could not recharge much fluoride even if they were immersed in the 1000 ppmF NaF solution. The results suggested that the matrix of RGIs and PMCRs functioned as a reservoir of fluoride, but the functions were lost by acid attack.
- ID情報
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- DOI : 10.4012/dmj.18.347
- ISSN : 0287-4547
- PubMed ID : 10786156
- SCOPUS ID : 0033290828