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http://dx.doi.org/10.5392/JKCA.2017.17.10.300

Antibacterial and Mechanical Properties of Glass Ionomer Cements Containing Functionalized Multi-wall Carbon Nanotube(MWCNT)  

Jeong, Mi-Ae (강원대학교 치위생학과)
Kim, Dong-Ae (경운대학교 치위생학과)
Publication Information
The Journal of the Korea Contents Association / v.17, no.10, 2017 , pp. 300-306 More about this Journal
Abstract
The purpose of this study was to investigate the antibacterial effect of functional multiwall carbon nanotube (MWCNT) on the conventional glass ionomer cement(GIC). The MWCNT was incorporated into a commercial powder at 0.125, 0.25, 0.5 and 1.0 wt%. Specimens for vickers hardness(VHN) disks(Ø$10mm{\times}2mm$) each were prepared. Indention were made using a load of 200 N and 20 s dwell on four specimens for each distilled water storage time 1d, 7d, and 14days. The antibacterial effects using agar diffusion test with S. mutans and S. aureus. The diameters of the inhibition zones produced around the materials were measured. The results revealed that all the vickers hardness values were increase significantly with incubation time(p<0.05). Regarding the antibacterial effect for S. mutans, all the tested groups showed a slightly higher value not significantly with the control group(p<0.05). However S. aureus statistical analysis indicated a significant difference for antibacterial agents between control and MWCNT containing 0.25 wt%(p<0.05). These results of this study provide that the conventional GIC with containing MWCNT show good antibacterial effect against and favorable mechanical properties. Further this study on the efficient functionalization of multiwall carbon nanotube will be needed.
Keywords
Glass Ionomer Cement; Multiwall Carbon Nanotube(MWCNT); Vickers Hardness(VHN); S.mutnas; Antibacterial;
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