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Volume 6, Issue 9 (Suppl) Dentistry 2016
ISSN: 2161-1122 Dentistry, an open access journal Euro Dental Congress 2016
October 24-26, 2016
October 24-26, 2016 Rome, Italy
15th Euro Congress on
Dental & Oral Health
So-Yeon Mo, Dentistry 2016, 6:9 (Suppl)
The substantivity and remineralization effect of bioactive glass on the demineralized dentin
So-Yeon Mo
Kyung Hee University School of Dentistry, Seoul, Korea
The demineralization of dentin is the initial pathologic changes that can lead to destruction of the dentin at a rapid rate. Bioactive
glass (BAG) is an excellent biocompatible material for tissue mineralization. So, the aim of this study is to evaluate the possibility
of remineralization of demineralized dentin using bioactive glass. Twenty extracted caries-free human 3rd molars were obtained.
Two dentin specimens were obtained from each tooth using a slow-speed diamond saw (Isomet, Buehler Ltd., USA) with water-
cooling. They were completely demineralized in 0.2 M formic acid solution for 10 days, and thoroughly washed with distilled water.
After that, they were randomly divided into two groups (n=40): Demineralized dentin group (DE), Bioactive glass 45S5 applicated
group (BAG). The specimens of DE group were stored in distilled water, while those of BAG group were immersed in the slurry
of BAG/deionized water (1:1 mixture) for 7 days. We weighed the specimens at three different stages to evaluate the substantivity
of BAG: demineralization, remineralization, and ultrasonic application after remineralization. FE-SEM/EDX, Raman Spectroscopy,
XRD Analysis were additionally performed to analyze the remineralization effect of BAG. As a result, we observed increase of weight
in BAG group after remineralization using BAG. In the FE-SEM/EDX, BAG particles were observed on the demineralized collagen
matrix in the BAG group. The crystalline phase of the dentin surface was confirmed through XRD and RAMAN in the BAG-treated
group. It is similar to the crystalline phase in mineralized dentin. Within the limitation of this study, BAG is enable to remineralize
the demineralized dentin although it is completely demineralized.
Biography
So-Yeon Mo
So-Yeon Mo has completed her master degree at 2014 from Kyung Hee University and is in the PhD course in the same university. And also she undergo the
residency course of conservative dentistry in Kyung Hee University Dental Hospital.
Duck-Su Kim
Associate Professor in Dept. of Conservative Dentistry, School of Dentistry, Kyung Hee University