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Estimated fluoride doses from toothpastes should be based on total soluble fluoride
Maria José L Oliveira1, Carolina C Martins, Saul M Paiva
1Department of Paediatric Dentistry and Orthodontics, School of Dentistry, Universidade Estadual de Montes Claros (UNIMONTES), Campus Darcy Ribeiro, Vila Mauricéia, Montes Claros, MG 39410-089, Brazil. carolcm10@hotmail.com.
International Journal of Environmental Research and Public Health
|November 6, 2013
Summary
Assessing fluoride intake in young children requires considering total soluble fluoride (TSF) instead of total fluoride (TF) in toothpaste. Bioavailable fluoride (TSF) levels reveal similar ingested doses, unlike total fluoride (TF) measurements.
Area of Science:
- Pediatric Dentistry
- Public Health Nutrition
- Toxicology
Background:
- Fluoride intake assessment in young children is crucial for preventing dental caries.
- Current methods may overestimate fluoride dosage by not differentiating between total fluoride (TF) and bioavailable fluoride (total soluble fluoride-TSF).
Purpose of the Study:
- To compare fluoride intake doses in young children based on total fluoride (TF) versus total soluble fluoride (TSF) in toothpaste.
- To determine if the type of toothpaste (family vs. children's) influences ingested fluoride dose calculations.
Main Methods:
- Fluoride intake was assessed in 158 Brazilian children aged 3-4 years using their regular toothpaste.
- Chemical analysis of toothpastes determined total fluoride (TF) and total soluble fluoride (TSF) levels.
- Fluoride doses were calculated as mg F/day/Kg of body weight for both TF and TSF.
Main Results:
- Ingested TF doses were significantly higher from family toothpastes compared to children's toothpastes.
- No significant difference was found in ingested TSF doses between family and children's toothpastes.
- Calculated TSF doses were consistently lower than TF doses, irrespective of toothpaste type.
Conclusions:
- Fluoride intake doses in young children may be overestimated when using total fluoride (TF) levels from toothpaste.
- Calculating ingested fluoride doses based on total soluble fluoride (TSF) provides a more accurate measure.
- The choice between family or children's toothpaste does not significantly impact the bioavailable fluoride (TSF) dose ingested by children.
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