Fluoride concentrations at and near the neonatal line in human deciduous tooth enamel obtained from a naturally fluoridated and a non-fluoridated area

This study sought to obtain a precise profile of fluoride concentrations at and near the neonatal line in deciduous incisors and canines from the naturally fluoridated area (1.0–1.3 parts/10 6 F in drinking water) of West Hartlepool and the non-fluoridated area (less than 0.1 parts/10 6 F in drinkin...

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Bibliographic Details
Published in:Archives of oral biology 2001-02, Vol.46 (2), p.147-153
Main Authors: Toyama, Yasuomi, Nakagaki, Haruo, Kato, Shoichi, Huang, Shiling, Mizutani, Yuki, Kojima, Shinichi, Toyama, Atsushi, Ohno, Norikazu, Tsuchiya, Tomoyuki, Kirkham, Jennifer, Robinson, Colin
Format: Article
Language:English
Subjects:
Calcium - analysis
Child, Preschool
Deciduous enamel
Dental Enamel - chemistry
Dentistry
Electron Probe Microanalysis
England
Female
Fluoridation
Fluoride
Fluorides - analysis
Humans
Maternal-Fetal Exchange
Neonatal line
Phosphates - analysis
Placenta
Pregnancy
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Summary:This study sought to obtain a precise profile of fluoride concentrations at and near the neonatal line in deciduous incisors and canines from the naturally fluoridated area (1.0–1.3 parts/10 6 F in drinking water) of West Hartlepool and the non-fluoridated area (less than 0.1 parts/10 6 F in drinking water) of Leeds in England. An abrasive microsampling method was used to determine the distribution of fluoride and phosphorus concentrations. The profile of fluoride concentrations in 100-μm layers before and after the neonatal line, that is, in the prenatal and postnatal enamel, were significantly higher in teeth from the fluoridated than non-fluoridated areas. It was concluded that the fact that the fluoride concentrations were about the same prenatally and postnatally in deciduous enamel obtained from the fluoridated and non-fluoridated areas indicates that fluoride enters the prenatal deciduous enamel and that it is transferred through the placenta.
ISSN:0003-9969
1879-1506
DOI:10.1016/S0003-9969(00)00104-7