Distribution of Fluoride in Human Dental Calculus

A knowledge of fluoride uptake and distribution in tooth deposits and underlying tooth surfaces could provide useful information about availability and action of fluoride in the oral environment and oral fluids. Fluoride concentration and distribution were therefore measured in supra- and subgingiva...

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Bibliographic Details
Published inJOURNAL OF DENTAL HEALTH Vol. 42; no. 3; pp. 307 - 315
Main Author OKUMURA, Hidenori
Format Journal Article
LanguageEnglish
Published Japanese Society for Oral Health 1992
Subjects
Dental calculus
Fluoride
Micro-sampling
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Summary:A knowledge of fluoride uptake and distribution in tooth deposits and underlying tooth surfaces could provide useful information about availability and action of fluoride in the oral environment and oral fluids. Fluoride concentration and distribution were therefore measured in supra- and subgingival calculus and at the underlying enamel or cementum surfaces using a mechanical sampling technique and a fluoride electrode (Weatherell et al., 1985). In this study, twenty extracted teeth with supragingival calculus and twenty teeth with subgingival calculus removed from subjects aged 44 to 67 years old were used. Phosphorus distributions were also determined using a x-ray microanalyser. The results were as follows; 1) Fluoride concenerations were highest at the surface of dental calculus. There was a lower level plateau for the interior, which rose again as the tooth surface was approached. 2) Supragingival calculus tended to show a smoother profile compared with that of subgingival calculus.
ISSN:0023-2831
2189-7379
DOI:10.5834/jdh.42.307