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RESISTANCE TO DEMINERALIZATION OF ENAMEL OF PRIMARY TEETH ACCORDING TO RESTORATIONS: IN VITRO STUDY USING QLF  

Kwon, Hae-Sook (Department of Pediatric Dentistry, School of Dentistry, Seoul National University)
Hyun, Hong-Keun (Department of Pediatric Dentistry, School of Dentistry, Seoul National University)
Kim, Young-Jae (Department of Pediatric Dentistry, School of Dentistry, Seoul National University)
Kim, Jung-Wook (Department of Pediatric Dentistry, School of Dentistry, Seoul National University)
Jang, Ki-Taeg (Department of Pediatric Dentistry, School of Dentistry, Seoul National University)
Kim, Chong-Chul (Department of Pediatric Dentistry, School of Dentistry, Seoul National University)
Hahn, Se-Hyun (Department of Pediatric Dentistry, School of Dentistry, Seoul National University)
Lee, Sang-Hoon (Department of Pediatric Dentistry, School of Dentistry, Seoul National University)
Publication Information
Journal of the korean academy of Pediatric Dentistry / v.37, no.1, 2010 , pp. 44-52 More about this Journal
Abstract
The objective of this in vitro study was to detect and monitor demineralization and remineralization of primary teeth according to restorative materials using quantitative light-induced fluorescence (QLF). A single bur hole was drilled on the each sound forty eight primary anterior teeth, and the specimens were divided into three groups. The cavity was restored with $Filtek^{TM}$ Z250(Group 1), F2000(Group 2), $Ketac^{TM}$ N100(Group 3) following the manufacturer's instructions. The teeth were subjected to the demineralizing buffer for 3 days, and then subjected to a remineralizing buffer for 14 days. The change of mineral loss(${\Delta}Q$) according to the stages was evaluated by QLF and the following results were obtained: 1. When demineralization was done, ${\Delta}Q$ was increased as follows. : Group 1 ($-110.79\;{\pm}\;27.77$) < Group 2 ($-104.84\;{\pm}\;28.95$) < Group 3 ($-90.16\;{\pm}\;21.87$) : Resistance to demineralization was statistically significant in Group 3. 2. There was a statistically significant increase in ${\Delta}Q$ of all groups since 1st day of remineralization 3. The rate of remineralization, ${\Delta}$(${\Delta}Q$)/day, showed significant high value in each group on the 1st day then decreased rapidly. 4. There was no statistically significant difference in the degree of remineralization among restorative materials.
Keywords
Primary teeth restoration; QLF(Quantitative light-induced fluorescence); Fluoride; Resistance to demineralization; Remineralization;
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Times Cited By KSCI : 2  (Citation Analysis)
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