Ion release and recharge from a fissure sealant containing amorphous calcium phosphate

Mahtab Memarpour, Neda Afzali Baghdadabadi, Azade Rafiee and Mehrdad Vossoughi

PLOS ONE, 2020, vol. 15, issue 11, 1-14

Abstract: To assess- the release of calcium and phosphate ions from a fissure sealant containing amorphous calcium phosphate (ACP), and to determine the re-release capacity of these ions when charged with a solution containing casein phosphopeptide-amorphous calcium phosphate (CPP-ACP). Nine blocks of ACP resin-based sealant were prepared and immersed in three solutions at different pH (4.0, 5.5, 7.0), and calcium and phosphate ion release was measured with ion chromatography at 1, 3, 5, 7, 14, 21 and 28 days after immersion. Sixty days after immersion, each block was charged with CPP-ACP solution in three 7-day cycles to investigate the re-release of these ions, which was measured on days 1, 3, and 7. No difference was observed in initial calcium ion release at pH 4.0 and pH 5.5. At both values, ion release was significantly higher than at pH 7.0 (p

Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0241272

DOI: 10.1371/journal.pone.0241272

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