Fluoride stability in dentifrices stored in schools in a town of northern Brazil
Braz. oral res. (Online)
;
29(1): 1-5, 2015. tab
Article
in English
| LILACS
| ID: lil-777168
ABSTRACT
The aim of this study was to analyze fluoride stability in dentifrices stored during nine months in schools from Careiro da Várzea, State of Amazonas, Brazil. Analysis of total fluoride concentration, total soluble fluoride, and ionic fluoride in the dentifrice samples was performed in four different time periods at the time of purchase (baseline); after three months, after six months, and after nine months of storage. Fluoride concentration was determined using a specific electrode (Orion 96-09) connected to an ion analyzer (Orion A-720) and calibrated with fluoride standard solutions containing 2.0 to 32.0 ppm F. The results obtained during the measurements were analyzed by analysis of variance (one-way ANOVA), followed by Tukey’s test for comparison of the means. After nine months of storage, total soluble fluoride, the active form of fluoride, decreased by 21.9%. As total soluble fluoride was below the minimum required for anticaries efficacy (1,000 ppm F) in the fourth analysis, it may be concluded that anticaries potential decreased with storage time.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Toothpastes
/
Cariostatic Agents
/
Fluorides, Topical
/
Drug Storage
Type of study:
Observational study
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Braz. oral res. (Online)
Journal subject:
Dentistry
Year:
2015
Type:
Article
/
Project document
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal do Amazonas/BR
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