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http://dx.doi.org/10.5933/JKAPD.2013.40.3.159

The Optimum Addition Ratio of Nano Hydroxyapatite to Glass Ionomer Dental Cement (Changes in Demineralization Resistance and Bonding Strength of Light Cured Glass Ionomer after the Addition of Nano Hydroxyapatite in Various Ratio)  

Kim, Nam Hyuk (Department of Pediatric Dentistry and Oral Science Research Center, College of Dentistry, Yonsei University)
Kim, Seong Oh (Department of Pediatric Dentistry and Oral Science Research Center, College of Dentistry, Yonsei University)
Song, Je Seon (Department of Pediatric Dentistry and Oral Science Research Center, College of Dentistry, Yonsei University)
Lee, Jae Ho (Department of Pediatric Dentistry and Oral Science Research Center, College of Dentistry, Yonsei University)
Son, Heung Kyu (Department of Pediatric Dentistry and Oral Science Research Center, College of Dentistry, Yonsei University)
Choi, Byung Jai (Department of Pediatric Dentistry and Oral Science Research Center, College of Dentistry, Yonsei University)
Choi, Hyung Jun (Department of Pediatric Dentistry and Oral Science Research Center, College of Dentistry, Yonsei University)
Publication Information
Journal of the korean academy of Pediatric Dentistry / v.40, no.3, 2013 , pp. 159-167 More about this Journal
Abstract
The aim of this study was to evaluate changes in demineralization resistance and bonding strength of light cured glass ionomer after the addition of nano hydroxyapatite in various ratios. Fuji II LC GIC (GC Co., Japan) was used as the control group and also as a base material for experimental group. HA was mixed into the RMGIC at various ratio to create a HA-LC GIC mixture, preparing six experimental groups, i.e. 5%, 10%, 15%, 20%, 25%, 30% HA-LC GIC. According to the results, the bonding strength increased due to the addition of HA, showing the maximum value at the 15% nano HA group (p < 0.05). Under CLSM observation after 4 days of demineralization, the HA groups were more resistant to demineralization compared to the control group. No significant difference was observed between HA groups. In analysis through SEM, the HA groups showed attachment of granular materials and decreased demineralized tooth surfaces under influence of HA particles.
Keywords
Nano hydroxyapatite; Light-cured glass ionomer; Bonding strength; Demineralization resistance;
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Times Cited By KSCI : 1  (Citation Analysis)
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