pH가 glass ionomer cement의 불소 이온 용출량과 용해성에 미치는 영향에 관한 실험적 연구
THE EFFECT OF pH MEDIA ON THE FLUORIDE RELEASE AND SOLUBILITY OF GLASS IONOMER CEMENT
이광희, 황의환, 이병도, 이상래,
소속 상세정보
이광희 ( ) - 경희대학교 치과대학 보존학교실
황의환 ( ) - 경희대학교 치과대학 보존학교실
이병도 ( ) - 경희대학교 치과대학 보존학교실
이상래 ( ) - 경희대학교 치과대학 보존학교실
KMID : 0352219890110000663
Abstract
The purpose of this study was to investigate the fluoride release and solubility of glass ionomer cement associated with three pH media.
For this study, GC Fuji II discs (20.0mm in diameter x 1.5mm thick) were immersed in pH
4.0 lactic acid, pH 7.0 distilled water and pH 10.0 KOH solutions for 1,7,14 and28 days.
The amount of fluoride release from the cement into three pH media were measured by
fluoride specific ion electrode and the solubility was measured by weight Ioss of discs. The results were as follows:
1. The lower was the pH of media, the more-was the amount of release of fluoride:
2. The amount of fluoride release was increased with time lapse.
3. After 1 day, the solubility was the highest, and after 7 days that was the least.
4. The lower was the pH of media, the more was the solubility, but there was no statistical difference in solubility according to the pH change.
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