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KMID : 1023420100100050373
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Journal of Dental Hygiene Science
2010 Volume.10 No. 5 p.373 ~ p.378
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Experimental Research on the Surface Changes and the Abrasion Resistance of Pit and Fissure Sealant by Fluoride
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Hwang Su-Hyun
Yu Ji-Su
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Abstract
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To test the effects of representative fluoride vanishes?1.23% APF gel and 5% NaF Fluoride Varnish?on the surface structure of pit and fissure sealant, this study classified samples of pit and fissure sealant into five groups: Group I deposited in distilled water for ten minutes, Group II treated with APF gel for one minute, Group III treated with APF gel for four minutes, Group IV treated with Fluoride Varnish for one minute, and Group V treated with Fluoride Varnish for four minutes. An abrasion test was carried out to measure changes in weight, along with observation of the surface structure by using an optical microscope, consequently drawing the following conclusions. 1. The results of the abrasion test using pit and fissure sealant, Concise, showed that Group III had the reduction in weight more increased than Group I and that Group V had less reduction in weight (p<0.05); the results of the abrasion test using Eco-S showed Group III had the reduction in weight more increased than Group I and that Group V had less reduction in weight (p<0.05). 2. The results of observation using an optical microscope showed that application of APF gel made the filler remarkable due to loss of substrate and that Group III treated with APF gel for four minutes had the toughest surface, followed by Group II treated with APF gel for one minute, Group I deposited in distilled water for ten minutes, Group IV treated with Fluoride Varnish for one minute, and Group V treated with Fluoride Varnish for four minutes.
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KEYWORD
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Pit and Fissure Sealant, Fluoride Varnish, APF gel, Abrasion Resistance
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