| AN EXPERIMENTAL STUDY OF THE LONGTERM VARIATION OF FLUORIDE CONCENTRATION IN THE STANNOUS FLUORIDE SOLUTION AND THE EFFECTS OF VARIOUS ADDITIVES |
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| 불화석 용액내 불소농도의 장기변화와 첨가물의 영향에 관한 실험적 연구 |
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최윤주, 유두선, 김대업, 이광희 |
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원광대학교 치과대학 소아치과학교실 |
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| Abstract |
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The purposes of this study were to measure the solubility of the stannous fluoride experimentally, to find a method for improving the solubility of the stannous fluoride, and to observe the effect of longterm storage on the variation of the concentration of fluoride in the stannous fluoride solutions. By adding such materials as antiseptics, dye, flavor, and tastes to solution, the variation of the fluoride concentration was also observed. Ten groups of 0.4% stannous fluoride solutions to which glycerine, sodium chloride, chlorhexidine, dye, flavor, xylitol, and sorbitol were added were prepared. The measurements were carried out by direct calibration. The obtained results were as follows. 1. Effect of adding glycerine as solvent. : The solubility of stannous fluoride increased in the case of adding glycerine. By increasing the glycerine concentration, the fluoride level in stannous fluoride solution also increased. 2. Effect of adding sodium chloride and chlorhexidine. : Comparing to the case of pure water, low fluoride level was measured in case of adding sodium chloride and high fluoride level was measured in case of adding chlorhexidine. 3. Effect of adding erythrosin as dye and banna essence as flavor. : Adding erythrosin and banna essence didn't affect fluoride level. 4. Effect of adding xylitol and sorbitol. : The effects of xylitol and sorbitol were nearly the same as the effect of adding erythrosin and banna essence. |
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