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The effects of nano-sized hydroxyapatite on demineralization resistance and bonding strength in light-cured glass ionomer dental cement

Other Titles
 광중합형 글라스아이오노머 시멘트의 탈회 저항성과 결합 강도에 대한 나노미터 입자의 하이드록시아파타이트의 효과 
 Ji-Hee Kim  ;  Yong-Keun Lee  ;  Seong Oh Kim  ;  Je Seon Song  ;  Byung-Jai Choi  ;  Hyung-Jun Choi 
 Journal of the Korean Academy of Pediatric Dentistry (대한소아치과학회지), Vol.37(1) : 24-34, 2010 
Journal Title
Journal of the Korean Academy of Pediatric Dentistry(대한소아치과학회지)
Issue Date
Light-cured glassionomer cement ; Nano-sized hydroxyapatite ; Demineralization resistanc ; Bonding strength
The aim of this study was to evaluate the effect of incorporated nano HA on the demineralization resistance and bonding strength of LC GIC in comparison with micro HA. Fuji II LC GIC was used as the control group and a base material for experimental groups. Two experimental groups were prepared. One was prepared by adding 15% micro HA to LC GIC by weight ratio (Exp. 1), and the other was prepared by adding 15% nano HA instead (Exp. 2). According to the results, the following conclusions could be obtained. 1. Observing under the CLSM, the control group showed thicker enamel demineralization layer than in the experimental groups, and the Exp. 2 group showed the thinnest demineralization layer. 2. In SEM analysis, there was greater enamel demineralization in the control group. The Exp. 2 group was more resistant to demineralization compared to the Exp. 1 group. 3. The bonding strength was found to be in the increasing order of control, Exp. 1, and Exp. 2 group (p < 0.05). 4. Observing the fractured surfaces under SEM after the bonding strength test was performed, there were bone-like apatite particles formed in HA-added experimental groups, and a greater number of bone-like apatite particles were formed in the Exp. 2 group compared to the Exp. 1 group
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Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Dental Biomaterials and Bioengineering (치과생체재료공학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Pediatric Dentistry (소아치과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Seong Oh(김성오) ORCID logo https://orcid.org/0000-0002-8620-1377
Song, Je Seon(송제선) ORCID logo https://orcid.org/0000-0001-8620-5629
Lee, Yong Keun(이용근)
Choi, Byung Jai(최병재)
Choi, Hyung Jun(최형준) ORCID logo https://orcid.org/0000-0002-3315-6912
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