Fluoride concentrations in salt marketed in Managua, Nicaragua

Abstract Nicaraguan legislation has established that fluoride concentrations in salt should be 200–225 mg/kg, but no report describes fluoride concentrations in salt marketed in this country. We evaluated the fluoride concentrations in 33 packages of salt of 11 brands (n = 3 each) purchased in Manag...

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Main Authors: Karla Irina Walsh, Jaime Aparecido Cury
Format: Article
Language:English
Published: Sociedade Brasileira de Pesquisa Odontológica 2018-05-01
Series:Brazilian Oral Research
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242018000100235&lng=en&tlng=en
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author Karla Irina Walsh
Jaime Aparecido Cury
author_facet Karla Irina Walsh
Jaime Aparecido Cury
author_sort Karla Irina Walsh
collection DOAJ
description Abstract Nicaraguan legislation has established that fluoride concentrations in salt should be 200–225 mg/kg, but no report describes fluoride concentrations in salt marketed in this country. We evaluated the fluoride concentrations in 33 packages of salt of 11 brands (n = 3 each) purchased in Managua, Nicaragua. According to the package information, 9 of the 11 brands were fluoridated. Six aliquots of each package were weighed (mean 2.5 ± 0.3 g; n = 198) and dissolved in 0.025 g/ml water. Duplicates of 1.0 ml of solutions prepared were buffered (1:1; v/v) with TISAB II. Fluoride concentrations were determined with ion-specific electrode, calibrated with standard solutions (0.25–16.0 μg F/ml) mixed (1:1; v/v) with TISAB II added to 0.025 g (p.a.) NaCl/ml. The mean (± standard deviation, n = 3) fluoride concentrations of two fluoridated brands were in accord with Nicaraguan law (209.8 ± 48.0 and 211.4 ± 26.0 mg F/kg), and those of five brands were below the mandated range (131.0 ± 34.3, 180.6 ± 12.3, 184.6 ± 34.8, 190 ± 47.2, and 199.0 ± 18.9 mg F/kg); two brands contained only traces of fluoride. The two non-fluoridated brands had traces of fluoride. The findings show that the surveillance system for the salt fluoridation program in Nicaragua should be improved, as most salt analyzed violated the requirements of the national legislation.
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spelling doaj.art-587ecafaf906467fac4257f8af7deac42022-12-21T20:28:56ZengSociedade Brasileira de Pesquisa OdontológicaBrazilian Oral Research1807-31072018-05-0132010.1590/1807-3107bor-2018.vol32.0045S1806-83242018000100235Fluoride concentrations in salt marketed in Managua, NicaraguaKarla Irina WalshJaime Aparecido CuryAbstract Nicaraguan legislation has established that fluoride concentrations in salt should be 200–225 mg/kg, but no report describes fluoride concentrations in salt marketed in this country. We evaluated the fluoride concentrations in 33 packages of salt of 11 brands (n = 3 each) purchased in Managua, Nicaragua. According to the package information, 9 of the 11 brands were fluoridated. Six aliquots of each package were weighed (mean 2.5 ± 0.3 g; n = 198) and dissolved in 0.025 g/ml water. Duplicates of 1.0 ml of solutions prepared were buffered (1:1; v/v) with TISAB II. Fluoride concentrations were determined with ion-specific electrode, calibrated with standard solutions (0.25–16.0 μg F/ml) mixed (1:1; v/v) with TISAB II added to 0.025 g (p.a.) NaCl/ml. The mean (± standard deviation, n = 3) fluoride concentrations of two fluoridated brands were in accord with Nicaraguan law (209.8 ± 48.0 and 211.4 ± 26.0 mg F/kg), and those of five brands were below the mandated range (131.0 ± 34.3, 180.6 ± 12.3, 184.6 ± 34.8, 190 ± 47.2, and 199.0 ± 18.9 mg F/kg); two brands contained only traces of fluoride. The two non-fluoridated brands had traces of fluoride. The findings show that the surveillance system for the salt fluoridation program in Nicaragua should be improved, as most salt analyzed violated the requirements of the national legislation.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242018000100235&lng=en&tlng=enFluoridationSodium ChlorideDental CariesIon-Selective Electrodes
spellingShingle Karla Irina Walsh
Jaime Aparecido Cury
Fluoride concentrations in salt marketed in Managua, Nicaragua
Brazilian Oral Research
Fluoridation
Sodium Chloride
Dental Caries
Ion-Selective Electrodes
title Fluoride concentrations in salt marketed in Managua, Nicaragua
title_full Fluoride concentrations in salt marketed in Managua, Nicaragua
title_fullStr Fluoride concentrations in salt marketed in Managua, Nicaragua
title_full_unstemmed Fluoride concentrations in salt marketed in Managua, Nicaragua
title_short Fluoride concentrations in salt marketed in Managua, Nicaragua
title_sort fluoride concentrations in salt marketed in managua nicaragua
topic Fluoridation
Sodium Chloride
Dental Caries
Ion-Selective Electrodes
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242018000100235&lng=en&tlng=en
work_keys_str_mv AT karlairinawalsh fluorideconcentrationsinsaltmarketedinmanaguanicaragua
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