Evaluation of total, soluble and ionic fluoride concentration in whitening and desensitizing toothpastes.

IF 1.6 4区 医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE International journal of dental hygiene Pub Date : 2024-05-19 DOI:10.1111/idh.12826
Marcelo Bruno Lemos de Oliveira, Lídia Audrey Rocha Valadas, Aldo Squassi, Juliano Sartori Mendonça
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Abstract

Purposes: Due to the popularity and increasing launch of toothpastes with whitening and sensitivity properties on the market, this study aimed to evaluate the fluoride concentrations in these products, since the concentrations of fluoride directly interfere with the anti-caries potential.

Methods: This is an experimental, in vitro study, where 37 samples from different batches (n = 3) purchased in different countries, were analysed in duplicate, via the ion-selective electrode technique to verify the concentration (μg/g or ppm F-) of total fluoride (TF), total soluble fluoride (TSF) and ionic fluoride (IF). For a comparative data analysis, ANOVA was applied followed by a Tukey's test for multiple comparisons. The level of confidence adopted was 95%.

Results: In the 37 assessed toothpastes, 45.9% contained NaF and 54.1% sodium monofluorophosphate (MFP). The TF found in the formulations ranged from 902.8 to 1539.4 ppm of F (mean: 1165.2 ± 179.3); fluoride concentration in the TSF fraction ranged from 708.8 to 1306.7 ppm of F (mean: 959.5 ± 162.4); IF results ranged from 101.9 to 1162.3 ppm of F (642.2 ± 294.1). Significant differences (p < 0.05) were found in the concentrations of the 59.5% assessed toothpastes in comparisons between declared and measured total fluoride (TF) concentrations, as well as in 62.2% when total fluoride (TF) and total soluble fluoride (TSF) were compared.

Conclusions: In this study, most of the samples evaluated showed discrepancies when compared to the information declared by the manufacturers. In addition, the soluble concentrations found in half of the samples were lower than total concentrations and this may affect anti-caries effectiveness.

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评估美白和脱敏牙膏中的总氟、可溶性氟和离子氟浓度。
研究目的由于具有美白和敏感功效的牙膏在市场上大受欢迎且上市量不断增加,本研究旨在评估这些产品中的氟浓度,因为氟浓度会直接干扰抗龋潜力:这是一项体外实验研究,通过离子选择电极技术,对从不同国家购买的不同批次(n = 3)的 37 个样品进行一式两份的分析,以验证总氟(TF)、总可溶性氟(TSF)和离子氟(IF)的浓度(μg/g 或 ppm F-)。数据比较分析采用方差分析,然后用 Tukey's 检验进行多重比较。采用的置信度为 95%:在 37 种接受评估的牙膏中,45.9% 含有 NaF,54.1% 含有单氟磷酸钠(MFP)。配方中发现的 TF 含量介于 902.8 至 1539.4 ppm 的 F 之间(平均值:1165.2 ± 179.3);TSF 部分的氟浓度介于 708.8 至 1306.7 ppm 的 F 之间(平均值:959.5 ± 162.4);IF 结果介于 101.9 至 1162.3 ppm 的 F 之间(642.2 ± 294.1)。显著性差异(p 结论:在这项研究中,大多数被评估的样品与生产商公布的信息存在差异。此外,在半数样品中发现的可溶性浓度低于总浓度,这可能会影响防龋效果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
International journal of dental hygiene
International journal of dental hygiene DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
4.00
自引率
8.30%
发文量
78
审稿时长
>12 weeks
期刊介绍: International Journal of Dental Hygiene is the official scientific peer-reviewed journal of the International Federation of Dental Hygienists (IFDH). The journal brings the latest scientific news, high quality commissioned reviews as well as clinical, professional and educational developmental and legislative news to the profession world-wide. Thus, it acts as a forum for exchange of relevant information and enhancement of the profession with the purpose of promoting oral health for patients and communities. The aim of the International Journal of Dental Hygiene is to provide a forum for exchange of scientific knowledge in the field of oral health and dental hygiene. A further aim is to support and facilitate the application of new knowledge into clinical practice. The journal welcomes original research, reviews and case reports as well as clinical, professional, educational and legislative news to the profession world-wide.
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