ABSTRACT
OBJECTIVES: This study assessed total and free fluoride concentrations in samples of toothpaste from Brunei, Cambodia, Laos, the Netherlands and Suriname, and investigated the labelling practices of the respective manufacturers. MATERIALS AND METHODS: Convenience samples were bought in the five countries and sent for analysis to the Netherlands. Levels of total and free available fluoride were measured. Details of the information declared on the packaging about type of fluoride and abrasives were recorded, and manufacturing and expiry dates were noted. RESULTS: A total of 119 samples of toothpaste were analysed. With one exception, all samples from the Netherlands complied with ISO (International Organisation for Standardisation) labelling requirements and there were no differences between the fluoride content declared and that found to be present on analysis. In samples purchased in the other countries, sodium monofluorophosphate (SMFP) toothpastes predominantly showed a low percentage of free available fluoride and the majority of toothpastes did not follow standard labelling guidelines. DISCUSSION: This study is not representative of any of the brands analysed, yet it highlights problematic discrepancies in products across countries. These may be related to the lack of a generally accepted methodology for analysing total and free fluoride content, absence of an agreement on the minimum concentration of fluoride required to ensure efficacy, weak regulating institutions that are unable to control labelling and consumer information, as well as a possible influx of counterfeit low-quality toothpaste. CONCLUSIONS: Renewed international focus should be directed towards closing gaps in guidelines and standards. Consumers should use only non-expired toothpaste, which should preferably be silica-based fluoride toothpaste that does not include abrasives containing calcium and that is properly labelled.
Subject(s)
Cariostatic Agents/analysis , Fluorides, Topical/analysis , Fluorides/analysis , Product Labeling/standards , Toothpastes/chemistry , Brunei , Cambodia , Cariostatic Agents/standards , Fluorides/standards , Fluorides, Topical/standards , Laos , Netherlands , Suriname , Toothpastes/standardsABSTRACT
O objetivo deste trabalho foi avaliar clinicamente a eficácia do verniz fluoretado Duraphat© na prevençäo da cárie oclusal, durante a erupçäo de primeiros molares permanentes, em 1 ano. Foram selecionadas 60 crianças divididas em dois grupos de 30 pacientes. Em um grupo, a aplicaçäo foi trimestral e, no outro, semestral. A aplicaçäo do verniz foi realizada em um primeiro molar permanente de uma hemiarcada, enquanto o elemento homólogo foi observado para controle. Näo obtivemos uma diferença significativa na eficácia do Duraphat© entre o dente com verniz e seu homólogo e entre as aplicaçöes trimestral e semestral, em relaçäo ao aparecimento de cárie