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KMID : 0361920080380060407
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Korean Journal of Orthodontics
2008 Volume.38 No. 6 p.407 ~ p.415
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Changes in surface content and crystal structure after fluoride gel or hydroxyapatite paste application on stripped enamel
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Kim Sang-Cheol
Hong Hyun-Sil
Hwang Young-Cheol Hwang
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Abstract
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Objective: The aim of this study was to evaluate the remineralization of interdentally stripped teeth after fluoride gel or hydroxyapatite paste application.
Methods: After interdental stripping, 1.23% fluoride gel or 10% hydroxyapatite paste was applied three times a day, with a duration of four minutes, for a week. Scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) were used to compare the change of surface contents and crystal structures before and after the application of fluoride gel or hydroxyapatite paste.
Results & Conclusions: EDS analysis indicated that calcium contents were increased after application of 10% HAp paste on stripped enamel (p ＜ 0.01). SEM view showed that enamel surfaces of 1.23% APF gel or 10% HAp paste application groups were smoother than those of the control group, which was regarded as the filling of the pore structures. And pores between crystal structures in groups treated with 1.23% APF gel or 10% HAp paste were smaller than those of the control group.
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KEYWORD
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Enamel stripping, Remineralization, Surface contents of enamel, Crystal structure of enamel
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