Fluoride concentration in mouth rinses marketed in Chile and Brazil, and a discussion regarding their legislations

OBJETIVES: The aim of this study was to verify the anticariogenic effect of acidulate solutions with low NaF concentration, using pH-cycling model and bovine enamel. MATERIAL AND METHODS: Enamel blocks were submitted to the surface microhardness (SMH) test and randomly divided in 12 experimental and one placebo groups. The blocks were submitted to pH cycling for 7 days, with daily applications once/day of 0.05% NaF and 0.1% NaF and twice/day of 0.02% NaF solutions. Four different pH: 4.0, 5.0, 6.0 and 7.0 were used. Next, SMH test was again used to determine the surface microhardness percentage change (%SMH). Data obtained for %SMH were homogeneous and passed through variance analyses and Tukey's test (5%) as far as fluoride concentrations and pH. RESULTS:The results showed that pH influenced %SMH in 0.02% NaF and 0.05% NaF solutions with pH 4.0, which had less mineral loss compared to pH 7.0 (p<0.05). The 0.02% NaF - pH 4.0, and 0.05% NaF - pH 7.0 groups showed similar results (p>0.05). A dose-response relationship was observed among the tested solutions, with better anticariogenic effect for the 0.1% NaF solution. CONCLUSION: The results suggest that the addition of citric acid to acidulate mouth rinses reduce mineral loss.

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Dentistry. Analysis of fluoride concentration in aqueous solutions by use of fluoride ion-selective electrode

10.3403/30298308 ◽

2018 ◽

Keyword(s):

Aqueous Solutions ◽

Fluoride Concentration ◽

Ion Selective Electrode ◽

Fluoride Ion ◽

Selective Electrode ◽

Fluoride Ion Selective Electrode

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Fluoride Accumulation in Groundwater from Semi-arid Part of Deccan Volcanic Province, India: A Cause of Urolithiasis Outbreak

10.21523/gcj3.17010102 ◽

2017 ◽

Vol 1 (1) ◽

pp. 9-17 ◽

Cited By ~ 6

Author(s):

Sanjay Kale ◽

N. J. Pawar

Keyword(s):

Medical Records ◽

Fluoride Concentration ◽

Data Generation ◽

Deccan Volcanic Province ◽

Temporal And Spatial Distribution ◽

Volcanic Province ◽

Fluoride Accumulation ◽

Hot Days ◽

Geochemical Investigation ◽

Relationship Of

Groundwater fluoride and health problem was meticulously studied for dental and skeleton fluorosis except few studies on urolithiasis. Urolithiasis is multi-factorial disease and excess fluoride consumption is one of the causal factors. In view of this, increase of fluoride in groundwater is reported in semiarid Deccan Volcanic Province (DVP), India. To understand the fluoride and urolithiasis association, present study was carried out in Karha river basin of DVP region. Three stages of data generation were adopted for present study such as procuring of medical records of urolithiasis, previous groundwater chemistry data and geochemical investigation of 50 groundwater samples from representative villages. Further, these variables were used for correlation analysis, temporal and spatial distribution to find out their relationships. Result shows medical records of hospitals indicating the gradual increase in urolithiasis is reported during drought situations. In temporal variation, annual fluoride concentration of groundwater and hot days are positively correlated with annual urolith patients as well as spatial study supports the same. In conclusion, present study highlights the relationship of urolith formation with number of hot days, groundwater electrical conductivity and fluoride. However, detailed biomedical study may lead towards understanding of fluoride- urolithiasis relationship.

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