TY - JOUR
T1 - The effects of single application of pastes containing ion-releasing particles on enamel demineralization
AU - Iijima, Masahiro
AU - Kawaguchi, Kyotaro
AU - Kawamura, Naohiko
AU - Ito, Shuichi
AU - Saito, Takashi
AU - Mizoguchi, Itaru
N1 - Publisher Copyright:
© 2017, Japanese Society for Dental Materials and Devices. All rights reserved.
PY - 2017
Y1 - 2017
N2 - We investigated single application of pastes containing a surface reaction-type pre-reacted glass-ionomer (S-PRG) filler on enamel demineralization. Human enamel blocks were polished using pastes containing S-PRG filler (0, 5, and 30%) and immersed in demineralizing solution for 5 days with daily change of solutions. The pH measurement and nanoindentation testing was carried out during the immersion period, and the enamel surfaces were examined using scanning electron microscopy and atomic force microscopy. A non-fluoride paste and a hydroxyapatite-containing paste were used for comparison. The specimens polished with the S-PRG filler-containing paste exhibited acid-neutralizing properties, which became stronger with an increasing S-PRG filler content. Following immersion in the demineralizing solution, specimens polished with the S-PRG filler-containing paste exhibited significantly greater hardness and elastic modulus values than those polished with the other pastes and exhibited a smoother surface than did the other specimens. Pastes containing S-PRG filler inhibits the demineralization of enamel.
AB - We investigated single application of pastes containing a surface reaction-type pre-reacted glass-ionomer (S-PRG) filler on enamel demineralization. Human enamel blocks were polished using pastes containing S-PRG filler (0, 5, and 30%) and immersed in demineralizing solution for 5 days with daily change of solutions. The pH measurement and nanoindentation testing was carried out during the immersion period, and the enamel surfaces were examined using scanning electron microscopy and atomic force microscopy. A non-fluoride paste and a hydroxyapatite-containing paste were used for comparison. The specimens polished with the S-PRG filler-containing paste exhibited acid-neutralizing properties, which became stronger with an increasing S-PRG filler content. Following immersion in the demineralizing solution, specimens polished with the S-PRG filler-containing paste exhibited significantly greater hardness and elastic modulus values than those polished with the other pastes and exhibited a smoother surface than did the other specimens. Pastes containing S-PRG filler inhibits the demineralization of enamel.
KW - Enamel demineralization buffering
KW - Nanoindentation
KW - Professional cleaning tooth polishing
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U2 - 10.4012/dmj.2016-307
DO - 10.4012/dmj.2016-307
M3 - Article
C2 - 28367912
AN - SCOPUS:85026410683
VL - 36
SP - 461
EP - 468
JO - Dental Materials Journal
JF - Dental Materials Journal
SN - 0287-4547
IS - 4
ER -