Available fluoride in toothpastes used by Brazilian children
Available fluoride in toothpastes used by Brazilian children
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DOI：
10.1590/s0103-64402010000500003
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发表时间：
2010-01-01
影响因子：
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通讯作者：
Paiva, Saul Martins
中科院分区：
文献类型：
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作者：
Cury, Jaime Aparecido;Oliveira, Maria José Lages de;Paiva, Saul Martins
牙膏应具有1000 ppm的最低浓度的氟化物（F）以控制龋齿，并且活性F试剂在制剂中必须是化学游离的（可溶的）。因此，本研究的目的是评估206名巴西儿童使用的维生素E中可溶性F的浓度。测定了总氟（TF）、总可溶性氟（TSF）和氟离子浓度。从这些分析中，计算了单氟磷酸钠（MFP）形式的F浓度和不溶性F的%。用离子特异性电极一式两份分析F。所用的大多数饼干（96%）含有氟，其中84%的TF浓度与制造商声明的一致。在含氟牙膏中，78%显示TSF浓度≥ 1000 ppm，范围为422.3 - 1432.3 ppm F（平均值± SD为1017.6 ± 239.4）。这些研究结果表明，巴西儿童使用的大多数牙膏目前可用于龋齿控制的氟化物浓度。
Toothpastes should have a minimum concentration of 1000 ppm of fluoride (F) to control caries and also the active F agent must be chemically free (soluble) in the formulation. Thus, the aim of this study was to evaluate the concentration of soluble F in dentifrices used by 206 Brazilian children. The concentrations of total fluoride (TF), total soluble fluoride (TSF) and fluoride ion were determined. From these analyses, the concentrations of F as sodium monofluorophosphate (MFP) and % of insoluble F were calculated. F was analyzed with an ion specific electrode in duplicates. The majority of dentifrices used (96%) contained F and in 84% of them, TF concentration was according to that declared by the manufacturers. In the F-toothpastes, 78% showed TSF concentration ≥ 1000 ppm, varying from 422.3 to 1432.3 ppm F (mean ± SD of 1017.6 ± 239.4). These findings suggest that most dentifrices used by Brazilian children present available fluoride concentration for caries control.