Effects of porous-hydroxyapatite incorporated into glass-ionomer sealants
| Autor: | Yoko Abe, Mie Sonomoto, Kyoko Harada, Takako Nishimura, Szu Yu Chiu, Kenji Arita, Hsiu Hui Chiu, Noriyuki Nagaoka, Yukari Shinonaga |
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| Rok vydání: | 2015 |
| Předmět: |
Pit and Fissure Sealants
Cement Materials science Enamel paint Sealant Glass ionomer cement Apatite Anti-Bacterial Agents chemistry.chemical_compound Durapatite chemistry Flexural strength Glass Ionomer Cements Tensile Strength visual_art Materials Testing Ceramics and Composites visual_art.visual_art_medium Humans Composite material Shear Strength General Dentistry Fluoride Ionomer |
| Zdroj: | Dental Materials Journal. 34:196-202 |
| ISSN: | 1881-1361 0287-4547 |
| DOI: | 10.4012/dmj.2014-195 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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