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Physical properties of resin-reinforced glass ionomer cement modified with micro and nano-hydroxyapatite

Authors
 Lee, Jong-Jin  ;  Lee, Yong-Keun  ;  Choi, Byung-Jai  ;  Lee, Jae-Ho  ;  Choi, Hyung-Jun  ;  Son, Heung-Kyu  ;  Hwang, Ji-Won  ;  Kim, Seong-Oh 
Citation
 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, Vol.10(8) : 5270-5276, 2010 
Journal Title
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
ISSN
 1533-4880 
Issue Date
2010
MeSH
Analysis of Variance ; Dental Enamel/chemistry ; Glass Ionomer Cements/chemistry* ; Hydroxyapatites/chemistry* ; Microscopy, Electron, Scanning ; Nanoparticles/chemistry* ; Resin Cements/chemistry* ; Statistics, Nonparametric ; Surface Properties ; Tensile Strength
Keywords
BONDING STRENGTH ; DEMINERALIZATION RESISTANCE ; HYDROXYAPATITE ; RESIN-REINFORCED GLASS IONOMER CEMENT
Abstract
Hydroxyapatite is a biologically compatible material and a major component of dental enamel and bone tissue. Because of its biocompatibility and structural similarity to human teeth and the skeletal system, a number of dental studies have evaluated its application as a bone substitute or dental restorative material. This study was to evaluate the differences in bonding strength and resistance to demineralization between micro-hydroxyapatite and nano-hydroxyapatite added to self-cured resin-reinforced/modified glass ionomer cement. RelyX was used as the base glass ionomer cement material and for the control group. 10% micro-hydroxyapatite added glass ionomer cement was named experimental group 1, and 10% nano-hydroxyapatite added glass ionomer cement was named experimental group 2. Physical tests for ISO9917-1:2007 in each group was acceptable, except the setting time of nano-hydroxyapatite added glass ionomer cement, which exceeded maximum setting time. Bonding strength was greatest in nano-hydroxyapatite glass ionomer cement, and cohesive failure was common in all specimens. When fractured surface was observed under SEM, spherical particles were observed in experimental groups containing hydroxyapatite particles, and they were more prevalent in nano-HA added glass ionomer cement group than in micro-hydroxyapatite added group. Both experimental groups exhibited greater resistance to demineralization compared to the control group, and there was no significant difference between the experimental groups. Under SEM, nano-hydroxyapatite added glass ionomer cement exhibited increased resistance to demineralization compared to micro-hydroxyapatite added glass ionomer cement
Full Text
http://www.ingentaconnect.com/content/asp/jnn/2010/00000010/00000008/art00065?token=00481f75365f58b616fa4f439412f415d767825707b3a7b6d7a24382d253033294840677
DOI
10.1166/jnn.2010.2422
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
Son, Heung Kyu(손흥규)
Lee, Yong Keun(이용근)
Lee, Jae Ho(이제호) ORCID logo https://orcid.org/0000-0002-1556-3485
Choi, Byung Jai(최병재)
Choi, Hyung Jun(최형준) ORCID logo https://orcid.org/0000-0002-3315-6912
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/101011
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