| Autor: |
Yukari SHINONAGA, Kenji ARITA, Takako NISHIMURA, Szu-Yu CHIU, Hsiu-Hui CHIU, Yoko ABE, Mie SONOMOTO, Kyoko HARADA, Noriyuki NAGAOKA |
| Předmět: |
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| Zdroj: |
Dental Materials Journal; Apr2015, Vol. 34 Issue 2, p196-202, 7p |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
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