법랑질에 국소도포된 부화물의 효과에 관한 X-선 광전자분광기 및 주사전자현미경적 연구
X-RAY PHOTOELECTRON SPECTROSCOPIC AND SCANNING ELECTRON MICROSCOPIC STUDIES ON REACTION OF DIFFERENT TOPICAL FLUORIDE AGENTS ON ENAMEL
이상대, 홍석진,
소속 상세정보
이상대 ( ) - 전남대학교 치과대학 예방치과학교실
홍석진 ( ) - 전남대학교 치과대학 예방치과학교실
KMID : 0355419910150020219
Abstract
This study was performed to examine the reaction of the different fluoride agents
(A1F3, NaF, Na2PO3F, NH4F, SnF2, TiF4) on enamel as well as to compare the
anticarious effect of these agents. The adsorption of fluoride on powdered enamel under various kinds and concentrations of fluoride solution treatment was measured by specific electrode. Enamel specimens treated with 6 kinds of 1, 000ppm fluoride solutions were evaluated for enamel solubility. And enamel surfaces treated with these fluoride solutions were analyzed by X-ray photoelectron spectroscopy and scanning electron microscopy. The results were as follows:
1. The adsorption of fluoride on powdered enamel increased gradually by the concentration, of the fluoride solutions. The adsorption of fluoride on powdered enamel treated with NH4F solutions at pH 4.0 was relatively higher than that of other fluoride solutions. In NH4F and NaF solution, the adsorption of fluoride on powdered enamel was higher at pH 4.0 solution than at pH 7.0 solution.
2. In enamel solubility, that of enamel specimen treated with NH4F solution was the lowest of all specimens and followed by the specimens treated with TiF4, SnF2, NaF, Na2PO3F, and AIF3 solution in order. And enamel specimens treated with any flouride solutions were less soluble than control group untreated with fluoride solution.
3. The fluoride cn enamel surface treated with NH4F solution comprised 2.91% of the detected elements and in the case of Na2PO3F it did 0.79%. In AIF3, SnF2, and TiF4 solutions, Al, Sn, and Ti atoms comprised 8.23%, 13.61 %,and 6. 10%,
respectively.
4, In SEM photomicrographs, NH4F solution made the granular surface deposits on enamel surface, and irregular crystallines were slightly deposited in AIF3, SnF2
solutions. TiF4 solution produced a tenacious surface coating on enamel surface with irregular crystallincs.
5. NaF and NH4F solutions formed calcium fluoride. SnF2, TiF4 solutions deposited ;he metallic salts on enamel surface. These fluoride solutions caused the increase of fluoride contents on enamel and the reduction of enamel solubility
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