어린이 치약의 총 불소 함량과 용해성 불소 함량의 평가
Evaluation of Total and Soluble Fluoride Concentrations in Ten Toothpastes for Children
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초록
본 연구에서는 한국에서 판매되는 어린이 치약의 총 불소 함량을 측정하여 이를 제조사에서 표기한 불소 함량과 비교하였으며, 총용해성 불소 함량을 측정하여 총 불소 함량과 비교하였다. 치약들은 맹검 시험을 위해 알파벳을 이용하여 암호화 되었다(A-J). 총 불소 함량의 측정을 위해 각 치약들은 증류수에 희석되었다. 총 용해성 불소 함량은 원심분리 후 상층액을 채득하여 측정되었다. 각 치약들의 불소함량은 불소이온전극이 연결된 이온 분석기를이용하여 측정되었다. 실험에 사용된 10개의 제품 중, 9개는 제조사에서 표기한 불소 함량과 유사한 총 불소 함량을 보였다. 한 개의 제품은 제조사에서표기한 불소 함량보다 적은 양의 총 불소 함량을 보였다. 모든 제품들은 총 불소 함량과 비슷한 정도의 총 용해성 불소 함량을 보였다.
Abstract
In this study, total fluoride (TF) in commercial toothpastes for children in Korea was evaluated and compared with the fluoride concentration declared by the manufacturer (Declared F). Additionally, total soluble fluoride (TSF) was evaluated and compared with TF. Ten toothpastes were coded with letters to allow blind analysis. For evaluation of TF, each toothpaste was homogenized in deionized water. For evaluation of TSF, each toothpaste was centrifuged and then, the supernatant of the sample was evaluated. Fluoride concentrations were assessed using a fluoride electrode coupled to an ion analyzer. Only one toothpaste showed lower TF concentration than Declared F. In all toothpastes, TSF was similar to the TF.
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