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KMID : 0358920100370040403
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Journal of the Korean Academy of Pedodontics
2010 Volume.37 No. 4 p.403 ~ p.411
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REMINERALIZATION EFFECT OF SODIUM FLUORIDE VARNISH ON WHITE LESION BY APPLICATION INTERVALS
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Lee Eun-Hui
Kim Jong-Soo
Yoo Seung-Hoon
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Abstract
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This study is about the treatment effect of fluoride varnish on white lesion. The changes in microhardness values and lesion sizes were compared and analyzed in relation to application interval, frequency, etc. Resin blocks were fabricated with the crown portion of permanent molars. Samples were classified into group I(1 week), group II(2 weeks) and group III(3 weeks) based on fluoride application intervals, each with 15 samples. Samples were soaked into a decalcifying solution for 15 days, and stored in artificial saliva at thermostat. The changes in microhardness values and lesion sizes, before/after decalcification and after fluoride application, were evaluated. The following results were obtained. 1. Microhardness values in group II and III exhibited almost twice the increasing rate than group I. There were significant differences between group I and II, and group I and III (p<0.05), but none between group II and III (p>0.05). 2. Change in lesion sizes showed no significant differences between group I and II, III (p>0.05). In conclusion, fluoride varnish application results in both qualitative and quantitative improvements in white lesions. The satisfactory results can be obtained when varnish is applied at more than 2 weeks interval.
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KEYWORD
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NaF varnish, White lesion, Remineralization
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