TY - JOUR
T1 - Effects of porous-hydroxyapatite incorporated into glass-ionomer sealants
AU - Shinonaga, Yukari
AU - Arita, Kenji
AU - Nishimura, Takako
AU - Chiu, Szu Yu
AU - Chiu, Hsiu Hui
AU - Abe, Yoko
AU - Sonomoto, Mie
AU - Harada, Kyoko
AU - Nagaoka, Noriyuki
N1 - Publisher Copyright:
© 2015, Japanese Society for Dental Materials and Devices. All rights reserved.
PY - 2015/1/19
Y1 - 2015/1/19
N2 - The purpose of the present study was to evaluate the mechanical and chemical properties of a novel glass ionomer cement for use as a pit and fissure sealant containing a porous hydroxyapatite, namely, apatite ionomer cement (AIC). Control sealant samples were used Fuji III (GIC-S). The experiment sealant samples (AIC-S) consisted of porous spherical hydroxyapatite (HApS) particles added at 28 wt% to GIC-S powder. The GIC-S and AIC-S samples were evaluated through mechanical strength measurements, scanning electron microscopy observations, energy dispersive X-ray spectroscopy analysis, fluoride ion release tests, and antibacterial tests. The flexural strength of the AIC-S was significantly higher than that of GIC-S for each period, 1 h, 24 h and 1 year. The fluoride release dose for AIC-S was consistently higher than that for GIC-S. In addition, the antibacterial properties of AIC-S were superior to those of GIC-S. The novel AIC-S may be a more suitable sealant material for pits and fissures with intact and/or infected enamel.
AB - The purpose of the present study was to evaluate the mechanical and chemical properties of a novel glass ionomer cement for use as a pit and fissure sealant containing a porous hydroxyapatite, namely, apatite ionomer cement (AIC). Control sealant samples were used Fuji III (GIC-S). The experiment sealant samples (AIC-S) consisted of porous spherical hydroxyapatite (HApS) particles added at 28 wt% to GIC-S powder. The GIC-S and AIC-S samples were evaluated through mechanical strength measurements, scanning electron microscopy observations, energy dispersive X-ray spectroscopy analysis, fluoride ion release tests, and antibacterial tests. The flexural strength of the AIC-S was significantly higher than that of GIC-S for each period, 1 h, 24 h and 1 year. The fluoride release dose for AIC-S was consistently higher than that for GIC-S. In addition, the antibacterial properties of AIC-S were superior to those of GIC-S. The novel AIC-S may be a more suitable sealant material for pits and fissures with intact and/or infected enamel.
KW - Antibacterial property
KW - Caries prevention
KW - Fluoride
KW - Glass ionomer cement
KW - Hydroxyapatite
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U2 - 10.4012/dmj.2014-195
DO - 10.4012/dmj.2014-195
M3 - Article
C2 - 25740161
AN - SCOPUS:84926285343
SN - 0287-4547
VL - 34
SP - 196
EP - 202
JO - Dental materials journal
JF - Dental materials journal
IS - 2
ER -