Academic Journal
A simplified protocol to determine total fluoride concentration in NaF/ silica-based toothpastes
| العنوان: | A simplified protocol to determine total fluoride concentration in NaF/ silica-based toothpastes |
|---|---|
| المؤلفون: | Jenniffer Quiroz-Torres, Cinthia Pereira Machado Tabchoury, Carlos Liñán-Durán, Antonio Pedro Ricomini-Filho, Ailin Cabrera-Matta, Jaime Aparecido Cury |
| المصدر: | Brazilian Journal of Oral Sciences, Vol 19 (2020) |
| بيانات النشر: | Universidade Estadual de Campinas |
| سنة النشر: | 2020 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | Fluorides, Toothpastes, Silicic acid, Dentifrices, Ion-selective electrodes, Dentistry, RK1-715 |
| الوصف: | Aim: To determine total fluoride (TF) concentration in Na2FPO3/Ca-based toothpastes, using fluoride ion selective electrode (F-ISE) by the direct technique, it is necessary to use acid (Ac+) to hydrolyze the FPO3 2- ion and to dissolve insoluble fluoride salts bound to the abrasive. For NaF/silicabased toothpastes, the use of acid is not necessary (Ac-) and a simplified protocol could be followed. Methods: Thus, we evaluated TF concentration in seven brands of NaF/silicabased toothpastes, following the validated conventional Cury’s protocol (Ac+) or a simplification of this protocol (Ac-). Fluoride was analyzed with ISE calibrated with fluoride standard solutions prepared in the same conditions as the samples (Ac+ or Ac-). Results: The mean (±SD; n=21) of TF concentrations (μg F/g) found by Ac+ (971.3±191.2) and Ac- (982.4±201.3) protocols were not statistically different (t test, p=0.22). The TF concentrations found agree with those declared by the manufacturers, except for one toothpaste imported from China. Conclusion: The findings suggest that the determination of fluoride in NaF/silica-based toothpastes can be accurately made using a simplified protocol of analysis. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1677-3225 |
| Relation: | https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8661689; https://doaj.org/toc/1677-3225; https://doaj.org/article/87baaef68ddc47329bef3c680197caa5 |
| DOI: | 10.20396/bjos.v19i0.8661689 |
| الاتاحة: | https://doi.org/10.20396/bjos.v19i0.8661689 https://doaj.org/article/87baaef68ddc47329bef3c680197caa5 |
| رقم الانضمام: | edsbas.4272B33D |
| قاعدة البيانات: | BASE |
| تدمد: | 16773225 |
|---|---|
| DOI: | 10.20396/bjos.v19i0.8661689 |