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Fluoride Availability and Stability in Children's Toothpastes in Uruguay

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Purpose: The purpose of this study was to evaluate the availability and stability of fluoride in children's toothpastes in Uruguay.

Methods: Six commercial brands of children's toothpaste available in Uruguay were tested. Analyses were made when the dentifrices were purchased (fresh samples) and after one year of storage (aged samples). Total fluoride (TF) and total soluble fluoride (TSF) concentrations were determined using an ion specific electrode.

Results: Four of the children's dentifrices showed TF concentration similar to that specified on the package. Three products showed similar concentrations of TF and TSF with no variations after the one-year storage period. Two dentifrices showed an initial insoluble fluoride concentration greater than 50 percent, which increased with toothpaste aging.

Conclusion: Most tested toothpastes showed a decrease in the soluble fluoride content with aging. The high quantity of insoluble fluoride found in two tested dentifrices may compromise their anti-caries efficacy.
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Keywords: FLUORIDE; PEDIATRIC DENTISTRY; TOOTHPASTES

Document Type: Research Article

Affiliations: 1: Adjunct professor, in the Department of Pediatric Dentistry, Faculty of Dentistry, University of the Republic, Montevideo, Uruguay 2: Assistant professor, in the Department of Pediatric Dentistry, Faculty of Dentistry, University of the Republic, Montevideo, Uruguay 3: PhD student, in the Department of Preventive and Social Dentistry, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil 4: Professor, in the Department of Preventive and Social Dentistry, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil 5: Professor, in the Department of Preventive and Social Dentistry, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil;, Email: [email protected]

Publication date: 01 May 2017

More about this publication?
  • Acquired after the merger between the American Society of Dentistry for Children and the American Academy of Pediatric Dentistry in 2002, the Journal of Dentistry for Children (JDC) is an internationally renowned journal whose publishing dates back to 1934. Published three times a year, JDC promotes the practice, education and research specifically related to the specialty of pediatric dentistry. It covers a wide range of topics related to the clinical care of children, from clinical techniques of daily importance to the practitioner, to studies on child behavior and growth and development. JDC also provides information on the physical, psychological and emotional conditions of children as they relate to and affect their dental health.
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